You may find this interesting:
http://www.youtube.com/watch?v=d0-pLcgq-2M&feature=related
Rez
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Hi,
Seen a client using MVS---VSM---SL8500 & doing HSM recycle(35).
Thought it was too high.
Found:
http://www.lascon.co.uk/d016001.htm
Virtual Tape Principles
The HSM recycle function can conflict with the VTS reclaim function, so it is
best to set the HSM perc
Thanks Radoslaw & Mark.
BE would have VNX disks.
I'll chase up the user guide, thanks.
Cheers.
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Hi,
I heard tapes can be defined as nonSMS or SMS when using DLm.
What are the +/- of each?
Any heads up as what to do or not when moving to DLm (setup, design, config,
DR, HSM, ...) ?
Also, if use 2 DLm (Primary & DR site), what kind of problems should one watch
out for REAL-DR?
(DLm1 repli
I find it very hard to believe that:
"we use MVS/MF only because we have old APPL which wd be expensive to
convert to Win/Linx/Ux"
It has taken 20+ years to develope & improve all the
Online/Trnx/Batch/Monitor/Tool/Plex/HSM/SMS/DB for MF, because they were
needed to run IT.
Are all these avai
For the archive:
Fan-in & Fan-out are the way to go.
Fan In-Fan Out can only be deployed when using switched-FICON
see:
http://www.cmg.org/measureit/issues/mit25/m_25_3.html
Understanding FICON Performance
SHR 7345
Rez
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F
Thanks Guys,
Is there a price to pay for this 'sharing'?
What are the +/- of sharing?
TIA,
Rez
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Hi,
My client has Raid DASD in remote site, being used/accessed by local(MVS1) &
remote(MVS2) systems.
Say DASD is hooked to 3 ports of Brocade-2 in the remote site.
MVS1Brocade-1DWDM.DWDMBrocade-2MVS2
Can all 3 ports on Brocade being used/shared by the 2 systems:
MVS
How NOT to increase the load on your disks !
http://www.youtube.com/watch?v=tDacjrSCeq4
Cheers,
Rez
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Great replies..., thanks.
Cheers,
Rez
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Hi,
My client used to have 2 CEC, 1 for prod, 1 for other LPARs.
They used to turn on CoD for prod & all was fine in other LPARs.
Now they have moved all LPARs to one Z10. But when CoD is turned on, some
3P SW on non-prod LPAR stop working.
Is there a way to, in effect, turn on CoD for 1 LPAR
Did:
SETXCF START,RB,STRNM=xx,LOC=NORMAL
for the 6 pending STR, & it worked fine:
...
IXC513I COMPLETED POLICY CHANGE FOR CFRM.
CFRMPOL1 POLICY IS ACTIVE.
Rez
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Thanks Kees.
Also, force was done after the CFRM POL activate, but was rejected:
-SETXCF FORCE,STR,STRNAME=HZS_HEALTHCHKLOG
IXC353I THE SETXCF FORCE REQUEST FOR STRUCTURE
HZS_HEALTHCHKLOG WAS REJECTED:
STRUCTURE CONTAINS ACTIVE CONNECTIONS
Found SHR Session 2876,
saying:
Fix: Structures Not Resized
.
Use reallocate to resolve pending changes
– SETXCF START,REALLOCATE
But why is it pending?
Does it remember the old CF01 was on Z9, so doesn't like it now?
Cheers,
Rez
-
Hi,
My client had 2 CF on Z9 : CF01, CF02.
They replaced CF01 with another one on a Z10.
They did:
move data to old CF02:
SETXCF START,REBUILD,CFNAME=(CF01),LOCATION=OTHER
activate a new CFRM Policy to say CF01 was on Z10.
move back data to new CF01:
SETXCF START,REBUILD,POPCF=CF01
Now the p
It turns out Group-capacity is not dynamic:
Can't add new GRP in chng-LPAR-GRP;
need to define GRP in LPAR-profile ...
Rez
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Hi,
My client has a Z9 Z02 (2 CP, 130 MSU).
They can activate CoD in Aug, but not on Sep-1 (end of
marketing/support/...);
but they 'may' need to do it.
CoD will change it to Z03 (3 CP, 189 MSU).
So the idea is to:
CAP the machine to 130 MSU,
activate CoD;
then IFF need more juice on Sep-1
Ad in Australian paper saying:
The Artline Memory Stick® digitally records everything you write or draw on a
2GB built-in flash drive. ... You can download it all later – as you wrote it,
or
in the typeface of your choice.
http://www.artline.com.au/Pages/NewMemoryStickPen.htm
Rez
-
goal-based initiator mngmnt
http://www-
03.ibm.com/servers/resources/servers_eserver_zseries_zos_wlm_pdf_cmgbatch
_pdf_wlm_goal_based_initiator_management.pdf
says:
>
When to Continue Using JES-managed Job Classes
When the depth of the job class queue is unrelated to the
number of initiators
Ron,
Your example is an 'exception', it was decided to do it for that DS to gain the
benefit. That's OK by me.
It wasn't decided to COMP all VSAM/PS(FB/VB) DS that are over 5 CYL, which
is the case I question. I've seen thousands of GDS, under 5 Cyl, being
COMP'd, & they quickly go to ML2, so
Thanks for the replies.
Redbook on vsam says:
There are some types of data sets that are not suitable for ZL compression,
resulting in rejection, such as these:
- Small data sets.
- Data sets in which the pattern of the data does not produ
Ron,
> What is the objective of compressing the dataset?
Nobody remembers.
It was done in a time far, far away ...
My client is short on CPU, so I (new sysFROG) started wondering why ...
> regardless of size.
So, size is not everything after all ;-)
Rez
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Ron,
By 'killer apps' you mean good ones to COMP for, right?
Would you COMP regardless of size, if short on CPU already, with lots of DASD?
(even for less than 50 cyls)
If size matters, what should the MIN size be?
Cheers,
Rez
---
Hi,
Are there any figures for the cost of SMS compression out there,
or is it YMMV?
(I've checked the archive to find cost is higher for W than for R ...,
seen many who decided not to do it with a lot of YMMV ...)
Also, are there any ROT for the min size to compress for?
One client I had comp
I had a look & it seems
%80+ JES inits
%20- WLM inits
Also a HOTBATCH SC is used, so 7 SC is used for all batch.
Rgds,
Rez
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> Why does the percent of page slots keep increasing over time.
That got me too. First I thought we had a bug. But it appears to be a feature.
It seems that not all page-outs would be brought in, unless they are wanted.
I like the idea of NOT running the big sort jobs at the same time.
Rez
Me
Ron,
Originally DBA complained about paging, & how it reduced workflow (in our
monitor).
I had a look to find that when the big sort jobs, some also use DB2
after/before the sort, run at the the same time, the demand paging goes up.
The chart was just a rough drawing to show how the demand pa
By %USE I meant page slots used, meaning increase in page out.
> Why does workflow drop from %use?
too much juice wasted on paging out/in.
The issue is not page config, but increase in paging out/in & drop in workflow.
So when we look at demand paging for the month, we roughly see:
..|
I know WLM & JES inits should not use the same SC, but what would be
the 'cost' of doing so?
Like have 3 SC : BAThi/md/lo for both WLM & JES inits.
TIA,
Rez
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Thanks guys.
When we get a few big sort jobs running, our page DS %use increases.
Which cause workflow to drop.
Page %USE doesn't drop much, but it can go up if we get another run of a
few big sort jobs later.
After a month, we could end up with %USE of 25 (with 3-4 big concurrent
SORT runs)
Hi Mark,
> You shouldn't mix WLM and JES2 controlled inits in the same service class
They are not.
Jes inits use BATxx , WLM inits use BATWLMxx.
Both WLM & JES inits have 'historically' used HI/MD/LO SC.
Some even have tried to use for 3 more SC : BATTSTHI/MD/LO.
But so far I've mngd not to d
Hi,
For a heavy (100+ jobs) nightly batch runs, my client has 6 SC :
BATHI ,BATMD , BATLO: JES init
BATWLMHI ,BATWLMMD ,BATWLMLO : WLM init
Used by different job classes.
Is it better to use:
1- same IMP for all, & use different Velocity,
or
2- different IMP & Vel,
or ...
Hi Frank/List,
My client has some very big SORT jobs.
When a few run at the the same time, the page DS USE% increases
(demanding paging).
Q1-
How do I make su
I looked at my goodies file & found:
try not to use IMP-1, use I2 for LOVEd ones
I like all the points made by Mark.
>
But from my experience at a lot of shops, I think many of them just
used IMP=1 for just about everything considered "production online". ...
Then they would (misguidedly) try
Hi,
It's been recommended NOT to use Imp 1 in WLM.
My client has been using Imp1 for online CICS.
I’m planning to change it to use Imp2 buy changing all Imp to Imp+1.
Can you think of any potential problems/issues?
TIA,
Rez
Hi Robert,
Thanks for your reply.
Did you mount a file there, did any get mounted there, or did it go to
the 'root'?
Thanks,
Rez
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Hi,
I'm applying RSU0909 to ZOS 1.9.
During apply check, got:
GIM54701E ** ALLOCATION FAILED FOR SISPZHFS - IKJ56228I
PATH
/SR009A/usr/lpp/ispf/bin/IBM/ NOT IN CATALOG OR CATALOG CAN NOT BE
ACCESSED.
Ran job SISPSAMP(ISPMKDIR) to create Dir & added DDDEF.
Found it in SDFHMAC(DFHSYS) :
...
&VERSION SETC '0640' CICS ELEMENT LEVEL
...
Cheers,
Rez
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Hi,
My client has a CICS XGMTEXT exit.
It has:
GBLC &VERSION
DFHSYS
PRINT ON,NOGEN
DFHEISTG DSECT
More info:
When my client used VT1 only, if VT1-1 failed/crashed, they did:
F HSM,SETSYS DUPLEX(BACKUP(N) MIGRATION(N))
F HSM,SETSYS DISASTERMODE(Y)
F HSM,TAPEREPL ALL DAVOLUMES
Then after fixing VT1-1, they did:
F HSM,SETSYS DUPLEX(BACKUP(Y) MIGRATION(Y))
F
Hi,
My client is moving from one Vir-tape (VT1) to another vir-tape system(VT2).
HSM uses Tape duplexing.
The plan is to use:
site1: primary HSM tapes:
VT1-1 : tape volser : 1*
VT2-1 : tape volser : 5*
site2: alternate HSM tapes:
VT1-2 : tape volser : 0*
VT2-2 : tape volser : 4*
If HSM is
G'day,
I searched the archive for this, but didn't find exact info, so I'm adding this
for
the archive.
if your VOLCAT fills up you'll get:
*IEC361I CATALOG SYS1.VOLCAT.VGENERAL (DATA) HAS REACHED 82% OF
THE MAXIMUM EXTENTS
To Split VOLCAT & move tapes 3n to another VOLCAT do:
D
Hi,
A logical volume got SCRATCHED in 1999, yet RMM still shows 209 DS on it.
Tape is in SCR status in RMM/SMS.
It's strange to me that tape has not been used in 10 years,
so I wonder if there's something wrong with the definition/parms of RMM.
Or are there special processing one needs to run t
For the archive:
My instructions were:
do:
CREATE VOLUMEENTRY ( NAME(V500030) LIBRARYNAME(MTLFC1) -
LOCATION(LIBRARY) MEDIATYPE(MEDIA2) RECORDING(36TRACK) -
USEATTRIBUTE(SCRATCH) )
Then to define to tape-mngt system of choice, which I did by:
RMM ADDVOLUME 500030 COUNT(50) LOCATION(MTLF
Hi,
My client is moving from VTS to MTL (using a vir-tape solution).
Tapes have been defined to SMS LIB & are seen in ISMF to be SCRATCH, but
D SMS,LIB(),DETAIL
doesn't show the right # of SCRATCH COUNT.
Tapes are used OK, even after SCR# becomes 0.
We define more SCR tapes, but the v
Hi,
Red book says:
---
Select what type of scratch pool to use:
SETSYS SELECTVOLUME(SCRATCH)
SETSYS PARTIALTAPE(MARKFULL)
SETSYS TAPEDELETION(SCRATCHTAPE)
... The MARKFULL parameter does not mean a waste of space using VTS,
because the stacked volume contains only the written data of each l
To my regret & sorrow, I just found out about this, searching the archive for
ERV.
I don’t remember doing a me-too reply before, so this is not one neither.
I’m really moved & shaken by reading all the replies.
BB was one of my most favourite posters of all times. I used to read every one
of h
> Search on Z/OS or ZOS or OS390 or OS/390 on the site www.monster.com
> there is over 400 jobs,
But if 500 are looking for jobs & 100 have not worked for over 1
year, & SPs are forced into retirement at 50, then that's not much of a
demand.
I should have used the term 'shortage' & not demand.
> Poland
R.S.:
I tried a few companies there & CZ, but didn't get far.
I wasn't even after big $.
To me good signs of 'demand' are:
1- demand is far more than the 'local supply', so companies have to
hire people from other countries.
2- finding a job doesn't take long for local people.
Based
Is there a city/country in the world with a real shortage of M/F
sysprogs?
TIA,
Rez
Ready
for the edge of your seat?
Check out tonight's top picks on Yahoo! TV.
http://tv.yahoo.com/
A friend made a very good point that many sysprogs lost their jobs in
OZ due to outsourcing; like one company had 8 SP, then outsourced, &
eventually ended up with 2 SP supporting a few sites.
Has this also been a factor in US?
Regards,
Rez
There hasn't been much demand for sysprogs in Australia in the last 2
years.
How is it in USA?
Is there enough demand for companies to sponsor H1B visa for sysprogs?
To my knowledge there isn't enough demand in Europe for them to sponsor
sysprogs who don't have work visa.
TIA,
Rez
__
Many thanks to those who Emailed me privately.
Another question:
is there any non-profit org/co out there who runs MVS & works for
a "good cause"? (I know about UN)
TIA & Salute,
Rez
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Tired of spam? Yahoo! Mail has the best spam
Greetings,
Does any University in Melbourne/Australia use MVS ?
How about any non-profit organizations in OZ?
Pls feel free to Email me directly.
TIA,
Rez
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