Gill,
Your Migration of H50 to ??? depends upon lots of factors.
1. What is TSM Database size?
2. Are you looking for TSM Availability or Performance?
If you keep log and database files on separate disk it's going to give you
good performance. But you should consider tuning other parameters also. If
you have some more time go through following link.
http://www.tivoli.com/support/storage_mgt/adsm/pfguide/tgv31mst.htm
We are migrating our environment from F50 server to H70. Of course we have
many parameters to consider. We have implemented Flash copy for backup on
Shark system. It backs up data without interference of client.
Important thing for availability is not to use AIX mirroring. SSA disks are
better for performance if they are configured 16 or 24 disks in a loop. 36
Gig disks are intended for high capacity, so it's better to use them for
disk pools only.
Hope this will help you to plan and run your server with optimal
configuration.
Thank you,
Bandu Vibhute,
Bestfoods Baking Company,
55 Paradise Lane, Bay Shore, NY, 11706
Voice: 631-951-5212, Cell: 516-702-0323
-----Original Message-----
From: Gill, Geoffrey L. [mailto:[EMAIL PROTECTED]]
Sent: Friday, April 27, 2001 10:14 AM
To: [EMAIL PROTECTED]
Subject: Migrating to new server.
I sent this yesterday and haven't seen a peep on it. In case it didn't make
it here it is again.
Hi all,
After learning something about AIX I did some investigating on the system
that IBM had set up for us. I discovered that the TSM database and log are
on the same physical disk and mirrored through TSM on a separate physical
disk. Everything I've read tells me to separate these so I wonder why it was
done that way.
The question now is what to do about it. I don't seem to be having a major
performance problem although the system has slowed since it's inception. Our
plan is to purchase a new server since this one goes off lease in May next
year. My plan would be to run this as it is and configure the new one
properly. Now the next question is what is proper.
Should I install the system on it's own disk and mirror it through the OS to
another disk and leave that by itself?
Is it a problem to put the TSM Recovery Log on the same physical disk as the
OS or should I keep that separate? The reason I ask this is because the
Recover Log can only be 5.5gb max.
If I'm using SSA then what kind of performance hit would I get if I used 2
9gb drives to set the Recovery Log on and they were connected via the
internal SCSI controller instead?
If I use a portion of a 36gb SSA disk for the Recovery Log is it ok to use
the rest of that disk for a disk pool or will I take a performance hit?
I doubt that's all of my questions but that's it for now. If anyone has any
suggestions on setting up and migrating everything from my H50 to a new
machine I would appreciate it immensely. And if you're ever in San Diego
I'll take you to meet the Beer Ninja and buy the beer.
Geoff Gill
TSM Administrator
NT Systems Support Engineer
SAIC
E-Mail: [EMAIL PROTECTED]
Phone: (858) 826-4062
Pager: (888) 997-9614
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