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Re: Packing Methods
Richa=
rd,
You have the same questions I had when I started to put in place our =
DR solution. We also have 3590E drives and I never tried to remove the hard =
drive default compaction. I don’t see a reason fo
>> "Schuh, Richard" 5/4/2009 12:30 PM >>>
> -Original Message-
> From: The IBM z/VM Operating System
> [mailto:ib...@listserv.uark.edu] On Behalf Of Tom Duerbusch
> Sent: Friday, May 01, 2009 10:21 AM
> To: IBMVM@LISTSERV.UARK.EDU
> Subject: Re:
> -Original Message-
> From: The IBM z/VM Operating System
> [mailto:ib...@listserv.uark.edu] On Behalf Of Tom Duerbusch
> Sent: Friday, May 01, 2009 10:21 AM
> To: IBMVM@LISTSERV.UARK.EDU
> Subject: Re: Packing Methods
>
> The reason to turn off 3590E hardwar
The reason to turn off 3590E hardware compression, is if you having
problems "feeding the beast". You get faster backups if you can keep
the drive going.
An IBM 3590E writes to tape at 14 MBs. If hardware compression is
turned on and you are getting 3:1 compression, then you have to feed the
c
If your main concern is impact on users and you have a speedy link between
the sites, then by all means use hardware compression only. If your link is
slow or there is other traffic on it, you may consider software compression
and then muzzle the backup application using priorities etc. I personall
; Regards,
> Richard Schuh
>
>
>
>
>
>>
>>
>>
>> From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On
>> Behalf Of Alain Benveniste
>> Sent: Thursday, April 30, 2009 4:25 AM
>> To: IBMVM@LISTSERV.UARK.EDU
>> Subject: Re: Packing
z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf
Of Alain Benveniste
Sent: Thursday, April 30, 2009 4:25 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: Packing Methods
Richard,
You have the same questions I had when I started to put in place our DR
solution. We also have 3590E
Richard,
You have the same questions I had when I started to put in place our DR
solution. We also have 3590E drives and I never tried to remove the hard
drive default compaction. I don¹t see a reason for that. Now choosing
software compaction is a must if you have enough cpu to do the work for
b
We are working on a DR process. I notice that the defaults for a Hidro backup
include the PACK option which tells Hidro to pack, or condense in some fashion,
its output. The output is being written to 3590E drives. It appears that there
are three choices we can make for condensing the data: soft
