Hi
First check compatibility with IBM and EMC.
Ron has mentioned a solution that applies to NetApp that may not apply
to EMC isilon eg. isilon does not have a vfiler concept.
I found that the restrictions of NDMP did not warrant the effort to use
it on something like an isilon cluster.
The
Thanks Ron for the reply
Its actually moot as the back end is XIV behind SVCs. But the SAN guys
like to allocate standard size luns and my DB luns are all a bit small for
their liking, so if I could get the same multithread effect by allocating
one big lun, with multiple AIX VGs on it, that
allocating one big lun, with multiple AIX VGs on it
In AIX, a lun is part of a vg. A single lun can only be part of a single vg.
Our experience with big databases is with Oracle on AIX.
AIX has 2 levels of queues:
- on the hba (lsattr -El fcsX | grep num_cmd_elems)
- on the lun
Hi Everyone,
The past couple of days we're had a strange problem with one of our TSM
instances (v6.2.5). At times it appears to hang.
Last night (and the previous night) it had many servers that got a dozen or
more sessions. This is really strange! This morning as I was looking at this,
Hi Rick,
From my experience, I had problem with an Expire inventory process (was
hanging on a very large node in term of items 13 millions ) that froze TSM
but it was on 6.1 version. Also, REORG can use a lot of resources an impact TSM.
Pierre Billaudeau
Analyste en stockage
We use to have problem with expiration hangs on v5, but haven't seen this on
v6. Will check out if expiration was running overnight or early this morning.
The REORG stuff. Is there any way to know when TSm is performing unusual stuff
on the db? If this is occurring, I'm not seeing anything
Rick,
Take a look at APARs IC99934 IT02590 (though supposedly only IT02590
applies to 6.2). Two different issues with similar symptoms; it took close
to 7 months to get both issues identified. There are still no patch or
maintenance releases with the fixes yet. If your symptoms seem to match
Hi Rick,
Have you tried pinpointing the problem using some of the show commands? I'd
take a look at:
show resq (to see if there are any waiters)
Try to correlate a particular session with the problem using the following:
show threads
show locks
show txnt
(I believe those are fairly well
Hello,
seems like I have been facing the same experience with one of my TSM
server (v.6.2.5). I have been quite lucky until now because the server
has recovered on its own. I opened a case in this matter with support a
few month ago. I was told to focus on setting a time window for reorg
We will be looking at all these things. Right now we did the normal
shutdown/reboot just to be sure (not sure of what!).
Rick
-Original Message-
From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of
Mitchell, Ruth Slovik
Sent: Wednesday, July 16, 2014 11:34 AM
To:
Anyone backing up a Win2012 system that is using its native deduplication ?
I took a quick scan of the BA client doc (7.1) and did not see any mention of
it.
Any information/feedback/references would be appreciated.
Thanks
Rick Adamson
Hi Rick,
You can use the backup-archive client to back up files on volumes that are
deduplicated by Windows. The files are backed up in their rehydrated
(non-deduplicated) state. (Note: The files are not rehydrated on the
volume, but the rehydration occurs transparently as the file is read by TSM
We're having the exact same problem, have been for quite a few months now.
It occurred on 6.3.4.100 and 7.1. Running on AIX 6.1 TL7 SP6 hosted on a
P740. It gets so bad on ours that I'll have to halt the dsmserv process,
perform a db2stop force and then restart TSM. Because it happens at
Interesting point about NDMP and dedup.
Do you have any experience with it? What kind of dedup ratios did you see?
-Original Message-
From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of Steven
Harris
Sent: Tuesday, July 15, 2014 9:48 PM
To: ADSM-L@VM.MARIST.EDU
Wanda,
this document will give a bit of insight to deduped NAS data.
http://www-05.ibm.com/de/events/breakfast/pdf/TSM_Dedup_Best_Practices_v1_0.pdf
Best Regards,
_
Ronald C. Delaware
IBM Level 2 - IT Plus Certified Specialist – Expert
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