ADSM-L

Re: copypools on disk on AIX?

2006-12-04 13:44:45
Subject: Re: copypools on disk on AIX?
From: Lawrence Clark <Larry_Clark AT THRUWAY.STATE.NY DOT US>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Mon, 4 Dec 2006 13:43:04 -0500
Yes, thank you.

After posting my question I went to the 5.3 Admin Ref and saw I needed
a file type device class
for copypools. Defined then, changed the script, and since TSM saw them
as a new copypool it
copied all the data over, over this past weekend. about 2 TB of
copypool data.

We just have the large volumes ( that are RAID5) on a DS4800. TSM auto
creates the volumes:

/var/diskpool/satacopyv-  CPSATABG     CPSATABG      2,048.0    0.0
Empty
 oc/00008733.BFS
/var/diskpool/satacopyv-  CPSATABG     CPSATABG      2,048.0   77.1
Filling
 oc/00008738.BFS
/var/diskpool/satacopyv-  CPSATABG     CPSATABG      2,048.0   51.4
Filling
 oc/0000873E.BFS
/var/diskpool/satacopyv-  CPSATABG     CPSATABG      2,048.0   98.6
Filling
 oc/00008743.BFS
/var/diskpool/satacopyv-  CPSATABG     CPSATABG      2,048.0   98.6
Filling
 oc/00008747.BFS

>From AIX mounted filesystem view:

/dev/lvvgsata2 1042022400         0  100%      266     1%
/var/diskpool/satacopy
vola
/dev/lvvgsata3 1042022400         0  100%      265     1%
/var/diskpool/satacopy
volb
/dev/lvvgsata4 1042022400         0  100%      266     1%
/var/diskpool/satacopy
voc
/dev/lvvgsata5 1042022400         0  100%      265     1%
/var/diskpool/satacopy
vold
/dev/lvvgsata6 1042022400         0  100%      265     1%
/var/diskpool/satacopy
vole
/dev/lvvgsata1 1042022400 1037871320    1%       17     1%
/var/dispool/satacopy
volf



>>> naclosagc AT GMAIL DOT COM 12/04/06 12:24 PM >>>
We tried file device class with our onsite pool with disappointing
results.
I believe the problem was our decision not to stripe across LUN's.
This
would have made performance much better, at the cost of a LUN failure
causing more damage than if we used them indicidually.  Now, I can't
remember the last time I saw a LUN failure, but YMMV.  We will
probably
address this issue again when the decision is made to move our copy
pool to
disk.

On 12/1/06, Lawrence Clark <Larry_Clark AT thruway.state.ny DOT us> wrote:
>
> We are migrateing our copypool from cartridge to a DS4800.
>
> From the manuals copypools only support FILE type devices.
>
> My assumptions ( on AIX) are:
>
> -I create logical volumes and file systems
> -Define the device class
> -TSM then creates the files in the filesystem
>
> Anyone ever done this with copypools on AIX?
>
> >>> rehorst AT POHA DOT COM 12/01/06 9:56 AM >>>
> Know of anyone using a vaulting service with transmissions over the
> Internet with TSM? We're at capacity and looking for options.
>
> Regards,
> Orin
>
> Orin Rehorst
>
>
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