Re: what is a 'full pack' minidisk?

2010-06-21 Thread Brian Nielsen
I second what Jim Hughes said - essentially that if it doesn't include 

cylinder 0 it's just a minidisk, no matter what the size.

Personally, and as discussed here by others in the distant past, I prefer
 
to not give out the last cylinder of a real volume in order to make it 

much easier to copy a 1st level volume for 2nd level testing.  Doing this
 
is just an extention of the same logic that leaves the last cylinder of 

the system volumes empty by design (as requested of IBM by user groups).

So now you need a term for a 1 to (END-1) minidisk  :)

On a related note, I don't like using END in the first place because 

it's not obvious how big it is unless you know the size of the volume. 
 
It's an unneeded obfuscation.

Brian Nielsen




On Fri, 18 Jun 2010 16:45:54 -0600, Scott Rohling 
scott.rohl...@gmail.com wrote:

I like that - it does imply 'almost'..   but now I'm going for '12end'.
We'll see if it lasts through the weekend ;-)  Tot ziens!

Scott Rohling

On Fri, Jun 18, 2010 at 4:33 PM, Rob van der Heij rvdh...@gmail.com 

wrote:

 On Fri, Jun 18, 2010 at 11:26 PM, Scott Rohling 
scott.rohl...@gmail.com
 wrote:
  Ok --  darn it.   a 1 to END minidisk just doesn't have the same 

ring
 to
  it as 'full pack'.   And it's another syllable to mumble..  ;-)

 Care for my pseudo full-pack terminology maybe?  (sounds more
 official than almost full-pack)




Re: what is a 'full pack' minidisk?

2010-06-21 Thread Schuh, Richard
On the other hand, it is possible for 3390-xx devices to be most any size that 
you want. The -03, -06 etc. designations are almost meaningless. You are not 
required to define (in the CU) a multiple of 3339 for the disk sizes. In this 
environment, 0-END is the way to define a full-pack minidisk regardless of the 
number of cylinders. The other way would be by DEVNO, iff you can count on the 
hardware people never changing the address. Here, the hardware people have 
changed the addresses of disks and have redefined capacities upward, but they 
have never changed a volser of one of the VM packs or created a duplicate of 
one that I care about; 0-END is best for me. 

I agree with the idea that a minidisk defined from 1-end is just a minidisk and 
the full-pack designation is a special case, unique unto itself. Personally, I 
have never seen the need for a term for an mdisk defined as 1-end, where end 
is either the word END or a number that is the equal to highest cylinder of 
the disk. Aside from being lazy, not wanting to periodically (after every h/w 
activity that includes messing with the dasd controllers) have to enter QUERY 
DASD DETAILS for every disk that I want protected by an MDISK that covers the 
entire disk, prefer the use of END instead of 3339, 10016 or whatever the 
ending cylinder number is. As an aside, I have seen some (physical) disks 
defined as small as 100 cylinders. 


Regards, 
Richard Schuh 

 

 -Original Message-
 From: The IBM z/VM Operating System 
 [mailto:ib...@listserv.uark.edu] On Behalf Of Brian Nielsen
 Sent: Monday, June 21, 2010 7:59 AM
 To: IBMVM@LISTSERV.UARK.EDU
 Subject: Re: what is a 'full pack' minidisk?
 
 I second what Jim Hughes said - essentially that if it 
 doesn't include =
 
 cylinder 0 it's just a minidisk, no matter what the size.
 
 Personally, and as discussed here by others in the distant 
 past, I prefer=
  
 to not give out the last cylinder of a real volume in order 
 to make it =
 
 much easier to copy a 1st level volume for 2nd level testing. 
  Doing this=
  
 is just an extention of the same logic that leaves the last 
 cylinder of =
 
 the system volumes empty by design (as requested of IBM by 
 user groups).
 
 So now you need a term for a 1 to (END-1) minidisk  :)
 
 On a related note, I don't like using END in the first 
 place because =
 
 it's not obvious how big it is unless you know the size of 
 the volume. =
  
 It's an unneeded obfuscation.
 
 Brian Nielsen
 
 
 
 
 On Fri, 18 Jun 2010 16:45:54 -0600, Scott Rohling 
 scott.rohl...@gmail.com wrote:
 
 I like that - it does imply 'almost'..   but now I'm going 
 for '12end'.
 We'll see if it lasts through the weekend ;-)  Tot ziens!
 
 Scott Rohling
 
 On Fri, Jun 18, 2010 at 4:33 PM, Rob van der Heij 
 rvdh...@gmail.com =
 
 wrote:
 
  On Fri, Jun 18, 2010 at 11:26 PM, Scott Rohling
 scott.rohl...@gmail.com
  wrote:
   Ok --  darn it.   a 1 to END minidisk just doesn't 
 have the same =
 
 ring
  to
   it as 'full pack'.   And it's another syllable to mumble..  ;-)
 
  Care for my pseudo full-pack terminology maybe?  (sounds more 
  official than almost full-pack)
 
 
 

Re: what is a 'full pack' minidisk?

2010-06-21 Thread Scott Rohling
I'm NOT advocating the use of END when defining MDISKs!One of the first
things I beg my customers to do is stop using END and use the number of
cylinders on all MDISK statements.   I concur that it's lazy and creates
extra work and confusion.   Also makes creating DASD usage reports out of a
directory from a remote system impossible.

My original post was about how to refer to a minidisk that's defined from
1-END -- because that language fits all sizes.   Referring to it and
actually defining it are two different things.   Always use the number of
cylinders when defining an MDISK.  Never use END.   On a DEFINE MDISK
command - go ahead and use END --  but NOT in the directory.

Scott Rohling

On Mon, Jun 21, 2010 at 9:59 AM, Schuh, Richard rsc...@visa.com wrote:

 On the other hand, it is possible for 3390-xx devices to be most any size
 that you want. The -03, -06 etc. designations are almost meaningless. You
 are not required to define (in the CU) a multiple of 3339 for the disk
 sizes. In this environment, 0-END is the way to define a full-pack minidisk
 regardless of the number of cylinders. The other way would be by DEVNO, iff
 you can count on the hardware people never changing the address. Here, the
 hardware people have changed the addresses of disks and have redefined
 capacities upward, but they have never changed a volser of one of the VM
 packs or created a duplicate of one that I care about; 0-END is best for me.

 I agree with the idea that a minidisk defined from 1-end is just a minidisk
 and the full-pack designation is a special case, unique unto itself.
 Personally, I have never seen the need for a term for an mdisk defined as
 1-end, where end is either the word END or a number that is the equal to
 highest cylinder of the disk. Aside from being lazy, not wanting to
 periodically (after every h/w activity that includes messing with the dasd
 controllers) have to enter QUERY DASD DETAILS for every disk that I want
 protected by an MDISK that covers the entire disk, prefer the use of END
 instead of 3339, 10016 or whatever the ending cylinder number is. As an
 aside, I have seen some (physical) disks defined as small as 100 cylinders.


 Regards,
 Richard Schuh



  -Original Message-
  From: The IBM z/VM Operating System
  [mailto:ib...@listserv.uark.edu] On Behalf Of Brian Nielsen
  Sent: Monday, June 21, 2010 7:59 AM
  To: IBMVM@LISTSERV.UARK.EDU
  Subject: Re: what is a 'full pack' minidisk?
 
  I second what Jim Hughes said - essentially that if it
  doesn't include =
 
  cylinder 0 it's just a minidisk, no matter what the size.
 
  Personally, and as discussed here by others in the distant
  past, I prefer=
 
  to not give out the last cylinder of a real volume in order
  to make it =
 
  much easier to copy a 1st level volume for 2nd level testing.
   Doing this=
 
  is just an extention of the same logic that leaves the last
  cylinder of =
 
  the system volumes empty by design (as requested of IBM by
  user groups).
 
  So now you need a term for a 1 to (END-1) minidisk  :)
 
  On a related note, I don't like using END in the first
  place because =
 
  it's not obvious how big it is unless you know the size of
  the volume. =
 
  It's an unneeded obfuscation.
 
  Brian Nielsen
 
 
 
 
  On Fri, 18 Jun 2010 16:45:54 -0600, Scott Rohling
  scott.rohl...@gmail.com wrote:
 
  I like that - it does imply 'almost'..   but now I'm going
  for '12end'.
  We'll see if it lasts through the weekend ;-)  Tot ziens!
  
  Scott Rohling
  
  On Fri, Jun 18, 2010 at 4:33 PM, Rob van der Heij
  rvdh...@gmail.com =
 
  wrote:
  
   On Fri, Jun 18, 2010 at 11:26 PM, Scott Rohling
  scott.rohl...@gmail.com
   wrote:
Ok --  darn it.   a 1 to END minidisk just doesn't
  have the same =
 
  ring
   to
it as 'full pack'.   And it's another syllable to mumble..  ;-)
  
   Care for my pseudo full-pack terminology maybe?  (sounds more
   official than almost full-pack)
  
  
 



Re: what is a 'full pack' minidisk?

2010-06-21 Thread Schuh, Richard
What do you do for your reports if an mdisk is defined by DEVNO instead of 
volser? You have remote access to the directory but cannot get the output from 
QUERY DASD DETAILS?

You have your preferences, which you state as though they are an absolute law. 
I have mine which are different from yours, so I guess I am breaking the law 
:-). I hope the offense is not a felony. If I am ever in a position where I 
have to report on DASD usage by cylinder from a remote location that has access 
to the directory but not to the system, I might change. Until then, I see no 
compelling reason why I should switch.


Regards,
Richard Schuh






From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf 
Of Scott Rohling
Sent: Monday, June 21, 2010 10:53 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: what is a 'full pack' minidisk?

I'm NOT advocating the use of END when defining MDISKs!One of the first 
things I beg my customers to do is stop using END and use the number of 
cylinders on all MDISK statements.   I concur that it's lazy and creates extra 
work and confusion.   Also makes creating DASD usage reports out of a directory 
from a remote system impossible.

My original post was about how to refer to a minidisk that's defined from 1-END 
-- because that language fits all sizes.   Referring to it and actually 
defining it are two different things.   Always use the number of cylinders when 
defining an MDISK.  Never use END.   On a DEFINE MDISK command - go ahead and 
use END --  but NOT in the directory.

Scott Rohling

On Mon, Jun 21, 2010 at 9:59 AM, Schuh, Richard 
rsc...@visa.commailto:rsc...@visa.com wrote:
On the other hand, it is possible for 3390-xx devices to be most any size that 
you want. The -03, -06 etc. designations are almost meaningless. You are not 
required to define (in the CU) a multiple of 3339 for the disk sizes. In this 
environment, 0-END is the way to define a full-pack minidisk regardless of the 
number of cylinders. The other way would be by DEVNO, iff you can count on the 
hardware people never changing the address. Here, the hardware people have 
changed the addresses of disks and have redefined capacities upward, but they 
have never changed a volser of one of the VM packs or created a duplicate of 
one that I care about; 0-END is best for me.

I agree with the idea that a minidisk defined from 1-end is just a minidisk and 
the full-pack designation is a special case, unique unto itself. Personally, I 
have never seen the need for a term for an mdisk defined as 1-end, where end 
is either the word END or a number that is the equal to highest cylinder of 
the disk. Aside from being lazy, not wanting to periodically (after every h/w 
activity that includes messing with the dasd controllers) have to enter QUERY 
DASD DETAILS for every disk that I want protected by an MDISK that covers the 
entire disk, prefer the use of END instead of 3339, 10016 or whatever the 
ending cylinder number is. As an aside, I have seen some (physical) disks 
defined as small as 100 cylinders.


Regards,
Richard Schuh



 -Original Message-
 From: The IBM z/VM Operating System
 [mailto:IBMVM@LISTSERV.UARK.EDUmailto:IBMVM@LISTSERV.UARK.EDU] On Behalf Of 
 Brian Nielsen
 Sent: Monday, June 21, 2010 7:59 AM
 To: IBMVM@LISTSERV.UARK.EDUmailto:IBMVM@LISTSERV.UARK.EDU
 Subject: Re: what is a 'full pack' minidisk?

 I second what Jim Hughes said - essentially that if it
 doesn't include =

 cylinder 0 it's just a minidisk, no matter what the size.

 Personally, and as discussed here by others in the distant
 past, I prefer=

 to not give out the last cylinder of a real volume in order
 to make it =

 much easier to copy a 1st level volume for 2nd level testing.
  Doing this=

 is just an extention of the same logic that leaves the last
 cylinder of =

 the system volumes empty by design (as requested of IBM by
 user groups).

 So now you need a term for a 1 to (END-1) minidisk  :)

 On a related note, I don't like using END in the first
 place because =

 it's not obvious how big it is unless you know the size of
 the volume. =

 It's an unneeded obfuscation.

 Brian Nielsen




 On Fri, 18 Jun 2010 16:45:54 -0600, Scott Rohling
 scott.rohl...@gmail.commailto:scott.rohl...@gmail.com wrote:

 I like that - it does imply 'almost'..   but now I'm going
 for '12end'.
 We'll see if it lasts through the weekend ;-)  Tot ziens!
 
 Scott Rohling
 
 On Fri, Jun 18, 2010 at 4:33 PM, Rob van der Heij
 rvdh...@gmail.commailto:rvdh...@gmail.com =

 wrote:
 
  On Fri, Jun 18, 2010 at 11:26 PM, Scott Rohling
 scott.rohl...@gmail.commailto:scott.rohl...@gmail.com
  wrote:
   Ok --  darn it.   a 1 to END minidisk just doesn't
 have the same =

 ring
  to
   it as 'full pack'.   And it's another syllable to mumble..  ;-)
 
  Care for my pseudo full-pack terminology maybe?  (sounds more
  official than almost full-pack)
 
 




Re: what is a 'full pack' minidisk?

2010-06-21 Thread Scott Rohling
Ah - well DEVNO isn't supported in the referenced report ;-)   (an in house
thing from long ago)

I didn't mean to state my 'rules' as law -- I always hate it when others do
that :-)More like Scott's Rules...

Most of my reasons for wanting to see specific cylinders in the directory
revolve around avoiding the need for Q DASD DETAILS...   whether remote or
not.One example is someone who thought the volumes they picked were
3390-9 and but were 3390-54.  They coded the MDISK statements 1 to END (from
habit) - told the Linux folks they were ready - and now we have a very
bloated Linux guest and can't just move the minidisk to another volume (like
we could if they had specified the size of 10016).

Mostly - specifying the size just avoids confusion and gives an immediate
view of the number of cylinders the MDISK requires.   END is ambiguous and
requires knowledge of the # of cylinders defined on the volume.   Avoiding
ambiguity goes a long way to eliminating errors...  shrug   YMMV I
consider it a 'best practice' and list it as such for customers.. The
exception are 'disk holder' users - like those that define all the volumes
on the system as 0 END for the purposes of physical backup, etc.   Then END
makes sense because you want the whole volume defined regardless of size and
it's an 'overlay' disk.

Scott Rohling



On Mon, Jun 21, 2010 at 1:18 PM, Schuh, Richard rsc...@visa.com wrote:

  What do you do for your reports if an mdisk is defined by DEVNO instead
 of volser? You have remote access to the directory but cannot get the output
 from QUERY DASD DETAILS?

 You have your preferences, which you state as though they are an absolute
 law. I have mine which are different from yours, so I guess I am breaking
 the law :-). I hope the offense is not a felony. If I am ever in a position
 where I have to report on DASD usage by cylinder from a remote location that
 has access to the directory but not to the system, I might change. Until
 then, I see no compelling reason why I should switch.


 Regards,
 Richard Schuh




  --
 *From:* The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] *On
 Behalf Of *Scott Rohling
 *Sent:* Monday, June 21, 2010 10:53 AM

 *To:* IBMVM@LISTSERV.UARK.EDU
 *Subject:* Re: what is a 'full pack' minidisk?

 I'm NOT advocating the use of END when defining MDISKs!One of the first
 things I beg my customers to do is stop using END and use the number of
 cylinders on all MDISK statements.   I concur that it's lazy and creates
 extra work and confusion.   Also makes creating DASD usage reports out of a
 directory from a remote system impossible.

 My original post was about how to refer to a minidisk that's defined from
 1-END -- because that language fits all sizes.   Referring to it and
 actually defining it are two different things.   Always use the number of
 cylinders when defining an MDISK.  Never use END.   On a DEFINE MDISK
 command - go ahead and use END --  but NOT in the directory.

 Scott Rohling

 On Mon, Jun 21, 2010 at 9:59 AM, Schuh, Richard rsc...@visa.com wrote:

 On the other hand, it is possible for 3390-xx devices to be most any size
 that you want. The -03, -06 etc. designations are almost meaningless. You
 are not required to define (in the CU) a multiple of 3339 for the disk
 sizes. In this environment, 0-END is the way to define a full-pack minidisk
 regardless of the number of cylinders. The other way would be by DEVNO, iff
 you can count on the hardware people never changing the address. Here, the
 hardware people have changed the addresses of disks and have redefined
 capacities upward, but they have never changed a volser of one of the VM
 packs or created a duplicate of one that I care about; 0-END is best for me.

 I agree with the idea that a minidisk defined from 1-end is just a
 minidisk and the full-pack designation is a special case, unique unto
 itself. Personally, I have never seen the need for a term for an mdisk
 defined as 1-end, where end is either the word END or a number that is
 the equal to highest cylinder of the disk. Aside from being lazy, not
 wanting to periodically (after every h/w activity that includes messing with
 the dasd controllers) have to enter QUERY DASD DETAILS for every disk that I
 want protected by an MDISK that covers the entire disk, prefer the use of
 END instead of 3339, 10016 or whatever the ending cylinder number is. As an
 aside, I have seen some (physical) disks defined as small as 100 cylinders.


 Regards,
 Richard Schuh



  -Original Message-
  From: The IBM z/VM Operating System
  [mailto:ib...@listserv.uark.edu] On Behalf Of Brian Nielsen
  Sent: Monday, June 21, 2010 7:59 AM
  To: IBMVM@LISTSERV.UARK.EDU
  Subject: Re: what is a 'full pack' minidisk?
 
   I second what Jim Hughes said - essentially that if it
  doesn't include =
 
  cylinder 0 it's just a minidisk, no matter what the size.
 
  Personally, and as discussed here by others

Re: what is a 'full pack' minidisk?

2010-06-21 Thread Schuh, Richard
Another exception might be made for disks used by a system that IPLs both in a 
virtual machine and on the bare iron and is aware of the full size of each 
device. Yet another could be devices shared with another system such as z/OS. I 
have hundreds of disks in these categories, heavily weighted toward the first. 
And they get changed frequently enough that updating the directory each time 
would be a real PITA because the changes usually are done in the wee hours of 
the morning - the directory updates would need to be coordinated with the h/w 
updates. By specifying 0-END, I prevent my having to make those coordinated 
directory updates while it is very dark and tired outside, and all of the typos 
that I would need to correct.


Regards,
Richard Schuh






From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf 
Of Scott Rohling
Sent: Monday, June 21, 2010 12:50 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: what is a 'full pack' minidisk?

Ah - well DEVNO isn't supported in the referenced report ;-)   (an in house 
thing from long ago)

I didn't mean to state my 'rules' as law -- I always hate it when others do 
that :-)More like Scott's Rules...

Most of my reasons for wanting to see specific cylinders in the directory 
revolve around avoiding the need for Q DASD DETAILS...   whether remote or not. 
   One example is someone who thought the volumes they picked were 3390-9 and 
but were 3390-54.  They coded the MDISK statements 1 to END (from habit) - told 
the Linux folks they were ready - and now we have a very bloated Linux guest 
and can't just move the minidisk to another volume (like we could if they had 
specified the size of 10016).

Mostly - specifying the size just avoids confusion and gives an immediate view 
of the number of cylinders the MDISK requires.   END is ambiguous and requires 
knowledge of the # of cylinders defined on the volume.   Avoiding ambiguity 
goes a long way to eliminating errors...  shrug   YMMV I consider it a 
'best practice' and list it as such for customers.. The exception are 'disk 
holder' users - like those that define all the volumes on the system as 0 END 
for the purposes of physical backup, etc.   Then END makes sense because you 
want the whole volume defined regardless of size and it's an 'overlay' disk.

Scott Rohling



On Mon, Jun 21, 2010 at 1:18 PM, Schuh, Richard 
rsc...@visa.commailto:rsc...@visa.com wrote:
What do you do for your reports if an mdisk is defined by DEVNO instead of 
volser? You have remote access to the directory but cannot get the output from 
QUERY DASD DETAILS?

You have your preferences, which you state as though they are an absolute law. 
I have mine which are different from yours, so I guess I am breaking the law 
:-). I hope the offense is not a felony. If I am ever in a position where I 
have to report on DASD usage by cylinder from a remote location that has access 
to the directory but not to the system, I might change. Until then, I see no 
compelling reason why I should switch.


Regards,
Richard Schuh






From: The IBM z/VM Operating System 
[mailto:IBMVM@LISTSERV.UARK.EDUmailto:IBMVM@LISTSERV.UARK.EDU] On Behalf Of 
Scott Rohling
Sent: Monday, June 21, 2010 10:53 AM

To: IBMVM@LISTSERV.UARK.EDUmailto:IBMVM@LISTSERV.UARK.EDU
Subject: Re: what is a 'full pack' minidisk?

I'm NOT advocating the use of END when defining MDISKs!One of the first 
things I beg my customers to do is stop using END and use the number of 
cylinders on all MDISK statements.   I concur that it's lazy and creates extra 
work and confusion.   Also makes creating DASD usage reports out of a directory 
from a remote system impossible.

My original post was about how to refer to a minidisk that's defined from 1-END 
-- because that language fits all sizes.   Referring to it and actually 
defining it are two different things.   Always use the number of cylinders when 
defining an MDISK.  Never use END.   On a DEFINE MDISK command - go ahead and 
use END --  but NOT in the directory.

Scott Rohling

On Mon, Jun 21, 2010 at 9:59 AM, Schuh, Richard 
rsc...@visa.commailto:rsc...@visa.com wrote:
On the other hand, it is possible for 3390-xx devices to be most any size that 
you want. The -03, -06 etc. designations are almost meaningless. You are not 
required to define (in the CU) a multiple of 3339 for the disk sizes. In this 
environment, 0-END is the way to define a full-pack minidisk regardless of the 
number of cylinders. The other way would be by DEVNO, iff you can count on the 
hardware people never changing the address. Here, the hardware people have 
changed the addresses of disks and have redefined capacities upward, but they 
have never changed a volser of one of the VM packs or created a duplicate of 
one that I care about; 0-END is best for me.

I agree with the idea that a minidisk defined from 1-end is just a minidisk and 
the full-pack

Re: what is a 'full pack' minidisk?

2010-06-19 Thread Kris Buelens
Just to avoid confusion to newbies. Note that to have a fullpack minidisk
there is no need to define it with 0 END in the CP directory; 0 3339 would
also define a fullpack if you define it on a 3390 model 3.

For CP, the translations it has to perform for the IO's issued by a guest
are a bit less complex if it is a fullpack minidisk.  Simply said: it
doesn't have to check the guest reads/writes to just that part of a volume.
And, when a target minidisk doesn't start at cylinder 0, CP must change all
cylinder numbers to apply an offset.

2010/6/19 zMan zedgarhoo...@gmail.com

 Most-pack.


 On Fri, Jun 18, 2010 at 7:20 PM, Scott Rohling scott.rohl...@gmail.comwrote:

 one off full pack ?

 Scott Rohling


 On Fri, Jun 18, 2010 at 5:17 PM, Schuh, Richard rsc...@visa.com wrote:

 Others

great big
big honking
near full pack
not full pack
well-nigh full pack
shaved full pack

 Regards,
 Richard Schuh



  -Original Message-
  From: The IBM z/VM Operating System
  [mailto:ib...@listserv.uark.edu] On Behalf Of Les Koehler
  Sent: Friday, June 18, 2010 4:03 PM
  To: IBMVM@LISTSERV.UARK.EDU
  Subject: Re: what is a 'full pack' minidisk?
 
  How about: virtual full-pack
 
  Les
 
  Rob van der Heij wrote:
   On Fri, Jun 18, 2010 at 11:26 PM, Scott Rohling
  scott.rohl...@gmail.com wrote:
   Ok --  darn it.   a 1 to END minidisk just doesn't have
  the same ring to
   it as 'full pack'.   And it's another syllable to mumble..  ;-)
  
   Care for my pseudo full-pack terminology maybe?  (sounds more
   official than almost full-pack)
  
 





 --
 zMan -- I've got a mainframe and I'm not afraid to use it




-- 
Kris Buelens,
IBM Belgium, VM customer support


Re: what is a 'full pack' minidisk?

2010-06-19 Thread A. Harry Williams
On Fri, 18 Jun 2010 16:45:54 -0600 Scott Rohling said:
I like that - it does imply 'almost'..   but now I'm going for '12end'.
We'll see if it lasts through the weekend ;-)  Tot ziens!

How about 1 short of a full pack(deck)?



Scott Rohling

On Fri, Jun 18, 2010 at 4:33 PM, Rob van der Heij rvdh...@gmail.com wrote:

 On Fri, Jun 18, 2010 at 11:26 PM, Scott Rohling scott.rohl...@gmail.com
 wrote:
  Ok --  darn it.   a 1 to END minidisk just doesn't have the same ring
 to
  it as 'full pack'.   And it's another syllable to mumble..  ;-)

 Care for my pseudo full-pack terminology maybe?  (sounds more
 official than almost full-pack)




Re: what is a 'full pack' minidisk?

2010-06-19 Thread Rob van der Heij
On Sat, Jun 19, 2010 at 12:38 PM, Kris Buelens kris.buel...@gmail.com wrote:

 For CP, the translations it has to perform for the IO's issued by a guest
 are a bit less complex if it is a fullpack minidisk.  Simply said: it
 doesn't have to check the guest reads/writes to just that part of a volume.
 And, when a target minidisk doesn't start at cylinder 0, CP must change all
 cylinder numbers to apply an offset.

Channel Program translation must create a real channel program, lock
the guest pages, change the address in the CCW to point to the real
page, etc. Adding an offset to the seek is the least of that trouble.
I have not checked the code, but I would not be surprised if CP were
just adding 0 to them...  And don't forget the untranslate to
present the device status to the guest again. Fortunately, the CCHR is
virtual, or relative to the start of the mini disk.
It's the Control Unit that verifies that the channel program does not
go beyond the edge or does not write on a R/O disk. CP puts a Define
Extent CCW at the start of the Channel Program that reflects the size
of the mini disk. It also has other info for the CU, so it's also
there for full pack...

Only V=R and V=F guests could take a shortcut because CP did not need
to lock the guest pages.

Rob


what is a 'full pack' minidisk?

2010-06-18 Thread Scott Rohling
Are there different terms for a minidisk that is defined from 1-END as
opposed to 0-END ?I keep having to clarify which I mean every time I use
the phrase 'full pack minidisk'.

Is there a more succinct way to refer to them separately so I don't have to
parenthetically explain what I mean?   (1-END)

Thanks from a befuddled old man ..

Scott Rohling


Re: what is a 'full pack' minidisk?

2010-06-18 Thread David Boyes
I usually use the following terms, but they are by no means standardized.

0-END is full pack. 1-END is Entire usable disk

From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf 
Of Scott Rohling
Sent: Friday, June 18, 2010 5:06 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: what is a 'full pack' minidisk?

Are there different terms for a minidisk that is defined from 1-END as opposed 
to 0-END ?I keep having to clarify which I mean every time I use the phrase 
'full pack minidisk'.

Is there a more succinct way to refer to them separately so I don't have to 
parenthetically explain what I mean?   (1-END)

Thanks from a befuddled old man ..

Scott Rohling


Re: what is a 'full pack' minidisk?

2010-06-18 Thread Hughes, Jim
1-end is a minidisk.

 

0-end is a full pack minidisk.

 



Jim Hughes

603-271-5586

It is fun to do the impossible.



From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On
Behalf Of Scott Rohling
Sent: Friday, June 18, 2010 5:06 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: what is a 'full pack' minidisk?

 

Are there different terms for a minidisk that is defined from 1-END as
opposed to 0-END ?I keep having to clarify which I mean every time I
use the phrase 'full pack minidisk'.  

Is there a more succinct way to refer to them separately so I don't have
to parenthetically explain what I mean?   (1-END)

Thanks from a befuddled old man ..

Scott Rohling



Re: what is a 'full pack' minidisk?

2010-06-18 Thread Alan Altmark
On Friday, 06/18/2010 at 05:07 EDT, Scott Rohling 
scott.rohl...@gmail.com wrote:
 Are there different terms for a minidisk that is defined from 1-END as 
opposed 
 to 0-END ?I keep having to clarify which I mean every time I use the 
phrase 
 'full pack minidisk'.

A fullpack minidisk is define as either 0-END or with DEVNO.
 
 Is there a more succinct way to refer to them separately so I don't have 
to 
 parenthetically explain what I mean?   (1-END)

There is no official term, but I don't see what's wrong with a 1 to END 
minidisk.   It requires no more explication than fullpack.  If there 
isn't a VMer on the other end of the conversation, you're going to explain 
it no matter what you say!  :-)

Alan Altmark
z/VM Development
IBM Endicott


Re: what is a 'full pack' minidisk?

2010-06-18 Thread Scott Rohling
Ok --  darn it.   a 1 to END minidisk just doesn't have the same ring to
it as 'full pack'.   And it's another syllable to mumble..  ;-)

For Linux guests - my typical recommendation is to use '1 to END minidisks'
rather than get into dividing things any smaller - unless there is a really
compelling reason.   And I typically refer to this as a 'full pack'
provisioning implementation -- so I think I need to stop doing that.

Thanks all -- wanted to make sure I wasn't in the dark on how to refer to
these beasties.

Scott Rohling

On Fri, Jun 18, 2010 at 3:16 PM, Alan Altmark alan_altm...@us.ibm.comwrote:

 On Friday, 06/18/2010 at 05:07 EDT, Scott Rohling
 scott.rohl...@gmail.com wrote:
  Are there different terms for a minidisk that is defined from 1-END as
 opposed
  to 0-END ?I keep having to clarify which I mean every time I use the
 phrase
  'full pack minidisk'.

 A fullpack minidisk is define as either 0-END or with DEVNO.

  Is there a more succinct way to refer to them separately so I don't have
 to
  parenthetically explain what I mean?   (1-END)

 There is no official term, but I don't see what's wrong with a 1 to END
 minidisk.   It requires no more explication than fullpack.  If there
 isn't a VMer on the other end of the conversation, you're going to explain
 it no matter what you say!  :-)

 Alan Altmark
 z/VM Development
 IBM Endicott



Re: what is a 'full pack' minidisk?

2010-06-18 Thread Schuh, Richard
There are some people who use full-pack to refer to either, which is not 
really correct or good. (I have been trying for 12+ years to convince the 
people here that what they are running is not VPARS. but TPF. It is difficult 
to change a culture.) If there is some ingrained term at your site, you may be 
better off using it.

Since there is no official term for the mdisk defined from 1-end in the 
lexicon, you are pretty much free to call it what you want. Just don't make it 
George.


Regards,
Richard Schuh






From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf 
Of Scott Rohling
Sent: Friday, June 18, 2010 2:06 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: what is a 'full pack' minidisk?

Are there different terms for a minidisk that is defined from 1-END as opposed 
to 0-END ?I keep having to clarify which I mean every time I use the phrase 
'full pack minidisk'.

Is there a more succinct way to refer to them separately so I don't have to 
parenthetically explain what I mean?   (1-END)

Thanks from a befuddled old man ..

Scott Rohling


Re: what is a 'full pack' minidisk?

2010-06-18 Thread Mike Walter
Your original question included the phrase:
 every time I use the phrase 'full pack minidisk'.

Now you're whining that:
 1 to END minidisk just doesn't have the same ring to it as 'full 
pack'.   And it's another syllable to mumble..  ;-)

Granted, it does take one whole extra syllable, but :
1 to end minidisk   vs
full pack minidisk
saves a whole BYTE!

Maybe it depends on your elocution skills vs your typing speed and quality 
(both frequent challenges for me).  But syllable itself uses a the same 
number of syllables as bytes as 1 to end!  ;-)
 
Oh look... it's: FRIDAY!!  BYTE me!  ;-)

Mike Walter
Hewitt Associates
The opinions expressed herein are mine alone, not my employer's.



Scott Rohling scott.rohl...@gmail.com 

Sent by: The IBM z/VM Operating System IBMVM@LISTSERV.UARK.EDU
06/18/2010 04:26 PM
Please respond to
The IBM z/VM Operating System IBMVM@LISTSERV.UARK.EDU



To
IBMVM@LISTSERV.UARK.EDU
cc

Subject
Re: what is a 'full pack' minidisk?






Ok --  darn it.   a 1 to END minidisk just doesn't have the same ring to 
it as 'full pack'.   And it's another syllable to mumble..  ;-)

For Linux guests - my typical recommendation is to use '1 to END 
minidisks' rather than get into dividing things any smaller - unless there 
is a really compelling reason.   And I typically refer to this as a 'full 
pack' provisioning implementation -- so I think I need to stop doing that.

Thanks all -- wanted to make sure I wasn't in the dark on how to refer to 
these beasties.

Scott Rohling

On Fri, Jun 18, 2010 at 3:16 PM, Alan Altmark alan_altm...@us.ibm.com 
wrote:
On Friday, 06/18/2010 at 05:07 EDT, Scott Rohling
scott.rohl...@gmail.com wrote:
 Are there different terms for a minidisk that is defined from 1-END as
opposed
 to 0-END ?I keep having to clarify which I mean every time I use the
phrase
 'full pack minidisk'.

A fullpack minidisk is define as either 0-END or with DEVNO.

 Is there a more succinct way to refer to them separately so I don't have
to
 parenthetically explain what I mean?   (1-END)

There is no official term, but I don't see what's wrong with a 1 to END
minidisk.   It requires no more explication than fullpack.  If there
isn't a VMer on the other end of the conversation, you're going to explain
it no matter what you say!  :-)

Alan Altmark
z/VM Development
IBM Endicott




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Re: what is a 'full pack' minidisk?

2010-06-18 Thread Scott Rohling
right - or late for dinner  ;-)

On Fri, Jun 18, 2010 at 4:04 PM, Schuh, Richard rsc...@visa.com wrote:

  There are some people who use full-pack to refer to either, which is
 not really correct or good. (I have been trying for 12+ years to convince
 the people here that what they are running is not VPARS. but TPF. It is
 difficult to change a culture.) If there is some ingrained term at your
 site, you may be better off using it.

 Since there is no official term for the mdisk defined from 1-end in the
 lexicon, you are pretty much free to call it what you want. Just don't make
 it George.


 Regards,
 Richard Schuh




  --
 *From:* The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] *On
 Behalf Of *Scott Rohling
 *Sent:* Friday, June 18, 2010 2:06 PM
 *To:* IBMVM@LISTSERV.UARK.EDU
 *Subject:* what is a 'full pack' minidisk?

 Are there different terms for a minidisk that is defined from 1-END as
 opposed to 0-END ?I keep having to clarify which I mean every time I use
 the phrase 'full pack minidisk'.

 Is there a more succinct way to refer to them separately so I don't have to
 parenthetically explain what I mean?   (1-END)

 Thanks from a befuddled old man ..

 Scott Rohling




Re: what is a 'full pack' minidisk?

2010-06-18 Thread Scott Rohling
Sense of humors are fussy things, aren't they? ;-)This would be
better with a beer in hand and some peanuts in the shell..

I officially dub it:   12end minidisk and save a few more bytes.   Those
non-mainframe muggles will pronounce it 'twelve end minidisk' and we can all
smirk.

Have a good weekend, Richard, and all!   (I never whine, I only grumble and
mumble - like a true curmudgeon)

Scott Rohling

On Fri, Jun 18, 2010 at 4:19 PM, Mike Walter mike.wal...@hewitt.com wrote:


 Your original question included the phrase:
  every time I use the phrase 'full pack minidisk'.

 Now you're whining that:
  1 to END minidisk just doesn't have the same ring to it as 'full
 pack'.   And it's another syllable to mumble..  ;-)

 Granted, it does take one *whole extra syllable*, but :
 1 to end minidisk   vs
 full pack minidisk
 *saves a whole BYTE!*

 Maybe it depends on your elocution skills vs your typing speed and quality
 (both frequent challenges for me).  But syllable itself uses a the same
 number of syllables as bytes as 1 to end!  ;-)

 Oh look... it's: FRIDAY!!  BYTE me!  ;-)

 Mike Walter
 Hewitt Associates
 The opinions expressed herein are mine alone, not my employer's.


  *Scott Rohling scott.rohl...@gmail.com*

 Sent by: The IBM z/VM Operating System IBMVM@LISTSERV.UARK.EDU

 06/18/2010 04:26 PM
  Please respond to
 The IBM z/VM Operating System IBMVM@LISTSERV.UARK.EDU


   To
 IBMVM@LISTSERV.UARK.EDU
 cc
   Subject
 Re: what is a 'full pack' minidisk?




 Ok --  darn it.   a 1 to END minidisk just doesn't have the same ring to
 it as 'full pack'.   And it's another syllable to mumble..  ;-)

 For Linux guests - my typical recommendation is to use '1 to END minidisks'
 rather than get into dividing things any smaller - unless there is a really
 compelling reason.   And I typically refer to this as a 'full pack'
 provisioning implementation -- so I think I need to stop doing that.

 Thanks all -- wanted to make sure I wasn't in the dark on how to refer to
 these beasties.

 Scott Rohling

 On Fri, Jun 18, 2010 at 3:16 PM, Alan Altmark 
 *alan_altm...@us.ibm.com*alan_altm...@us.ibm.com
 wrote:
 On Friday, 06/18/2010 at 05:07 EDT, Scott Rohling
 *scott.rohl...@gmail.com* scott.rohl...@gmail.com wrote:
  Are there different terms for a minidisk that is defined from 1-END as
 opposed
  to 0-END ?I keep having to clarify which I mean every time I use the
 phrase
  'full pack minidisk'.

 A fullpack minidisk is define as either 0-END or with DEVNO.

  Is there a more succinct way to refer to them separately so I don't have
 to
  parenthetically explain what I mean?   (1-END)

 There is no official term, but I don't see what's wrong with a 1 to END
 minidisk.   It requires no more explication than fullpack.  If there
 isn't a VMer on the other end of the conversation, you're going to explain
 it no matter what you say!  :-)

 Alan Altmark
 z/VM Development
 IBM Endicott

 --

 The information contained in this e-mail and any accompanying documents may
 contain information that is confidential or otherwise protected from
 disclosure. If you are not the intended recipient of this message, or if
 this message has been addressed to you in error, please immediately alert
 the sender by reply e-mail and then delete this message, including any
 attachments. Any dissemination, distribution or other use of the contents of
 this message by anyone other than the intended recipient is strictly
 prohibited. All messages sent to and from this e-mail address may be
 monitored as permitted by applicable law and regulations to ensure
 compliance with our internal policies and to protect our business. E-mails
 are not secure and cannot be guaranteed to be error free as they can be
 intercepted, amended, lost or destroyed, or contain viruses. You are deemed
 to have accepted these risks if you communicate with us by e-mail.


Re: what is a 'full pack' minidisk?

2010-06-18 Thread Rob van der Heij
On Fri, Jun 18, 2010 at 11:26 PM, Scott Rohling scott.rohl...@gmail.com wrote:
 Ok --  darn it.   a 1 to END minidisk just doesn't have the same ring to
 it as 'full pack'.   And it's another syllable to mumble..  ;-)

Care for my pseudo full-pack terminology maybe?  (sounds more
official than almost full-pack)


Re: what is a 'full pack' minidisk?

2010-06-18 Thread Scott Rohling
I like that - it does imply 'almost'..   but now I'm going for '12end'.
We'll see if it lasts through the weekend ;-)  Tot ziens!

Scott Rohling

On Fri, Jun 18, 2010 at 4:33 PM, Rob van der Heij rvdh...@gmail.com wrote:

 On Fri, Jun 18, 2010 at 11:26 PM, Scott Rohling scott.rohl...@gmail.com
 wrote:
  Ok --  darn it.   a 1 to END minidisk just doesn't have the same ring
 to
  it as 'full pack'.   And it's another syllable to mumble..  ;-)

 Care for my pseudo full-pack terminology maybe?  (sounds more
 official than almost full-pack)



Re: what is a 'full pack' minidisk?

2010-06-18 Thread Les Koehler

How about: virtual full-pack

Les

Rob van der Heij wrote:

On Fri, Jun 18, 2010 at 11:26 PM, Scott Rohling scott.rohl...@gmail.com wrote:

Ok --  darn it.   a 1 to END minidisk just doesn't have the same ring to
it as 'full pack'.   And it's another syllable to mumble..  ;-)


Care for my pseudo full-pack terminology maybe?  (sounds more
official than almost full-pack)



Re: what is a 'full pack' minidisk?

2010-06-18 Thread Schuh, Richard
Others

great big 
big honking
near full pack
not full pack 
well-nigh full pack
shaved full pack

Regards, 
Richard Schuh 

 

 -Original Message-
 From: The IBM z/VM Operating System 
 [mailto:ib...@listserv.uark.edu] On Behalf Of Les Koehler
 Sent: Friday, June 18, 2010 4:03 PM
 To: IBMVM@LISTSERV.UARK.EDU
 Subject: Re: what is a 'full pack' minidisk?
 
 How about: virtual full-pack
 
 Les
 
 Rob van der Heij wrote:
  On Fri, Jun 18, 2010 at 11:26 PM, Scott Rohling 
 scott.rohl...@gmail.com wrote:
  Ok --  darn it.   a 1 to END minidisk just doesn't have 
 the same ring to
  it as 'full pack'.   And it's another syllable to mumble..  ;-)
  
  Care for my pseudo full-pack terminology maybe?  (sounds more 
  official than almost full-pack)
  
 

Re: what is a 'full pack' minidisk?

2010-06-18 Thread Scott Rohling
one off full pack ?

Scott Rohling

On Fri, Jun 18, 2010 at 5:17 PM, Schuh, Richard rsc...@visa.com wrote:

 Others

great big
big honking
near full pack
not full pack
well-nigh full pack
shaved full pack

 Regards,
 Richard Schuh



  -Original Message-
  From: The IBM z/VM Operating System
  [mailto:ib...@listserv.uark.edu] On Behalf Of Les Koehler
  Sent: Friday, June 18, 2010 4:03 PM
  To: IBMVM@LISTSERV.UARK.EDU
  Subject: Re: what is a 'full pack' minidisk?
 
  How about: virtual full-pack
 
  Les
 
  Rob van der Heij wrote:
   On Fri, Jun 18, 2010 at 11:26 PM, Scott Rohling
  scott.rohl...@gmail.com wrote:
   Ok --  darn it.   a 1 to END minidisk just doesn't have
  the same ring to
   it as 'full pack'.   And it's another syllable to mumble..  ;-)
  
   Care for my pseudo full-pack terminology maybe?  (sounds more
   official than almost full-pack)
  
 



Re: what is a 'full pack' minidisk?

2010-06-18 Thread zMan
Most-pack.

On Fri, Jun 18, 2010 at 7:20 PM, Scott Rohling scott.rohl...@gmail.comwrote:

 one off full pack ?

 Scott Rohling


 On Fri, Jun 18, 2010 at 5:17 PM, Schuh, Richard rsc...@visa.com wrote:

 Others

great big
big honking
near full pack
not full pack
well-nigh full pack
shaved full pack

 Regards,
 Richard Schuh



  -Original Message-
  From: The IBM z/VM Operating System
  [mailto:ib...@listserv.uark.edu] On Behalf Of Les Koehler
  Sent: Friday, June 18, 2010 4:03 PM
  To: IBMVM@LISTSERV.UARK.EDU
  Subject: Re: what is a 'full pack' minidisk?
 
  How about: virtual full-pack
 
  Les
 
  Rob van der Heij wrote:
   On Fri, Jun 18, 2010 at 11:26 PM, Scott Rohling
  scott.rohl...@gmail.com wrote:
   Ok --  darn it.   a 1 to END minidisk just doesn't have
  the same ring to
   it as 'full pack'.   And it's another syllable to mumble..  ;-)
  
   Care for my pseudo full-pack terminology maybe?  (sounds more
   official than almost full-pack)
  
 





-- 
zMan -- I've got a mainframe and I'm not afraid to use it