It's possible that your tapes are dropping out of streaming mode and
shoeshining, in which case moving tape to disk, and then exporting disk to tape
could speed things up.
At 07:57 AM 7/8/2011, Hughes, Timothy wrote:
>Thanks paul,
>
>Yes, We are doing Server-to-tape exports. I did notice a couple times long
>input tape mounts on the destination TSM SERVER one was around 6,000 seconds
>another around 14,000 seconds and another 17,000 seconds.
>
>
>Also, I noticed the one clients SYSTEMSTATE number of files is 815,709? This
>export is going take forever
>
>q occu Kqdc5
>
>Node Name Type Filespace FSID Storage Number of Physical Logical
> Name Pool Name Files Space Space
> Occupied Occupied
> (MB) (MB)
>---------- ---- ---------- ----- ---------- --------- --------- ---------
>KQDC5 Bkup kqdc5\Sy- 1 LTO30POOL 815,709 65,734.62 65,656.25
> stemStat-
> e\NULL\S-
> ystem
> State\Sy-
> stemState
>Regards
>
>-----Original Message-----
>From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf
>Of Paul Zarnowski
>Sent: Thursday, July 07, 2011 3:40 PM
>To: ADSM-L AT VM.MARIST DOT EDU
>Subject: Re: EXPORTING clients
>
>We have found that moving the data to a serial disk pool first, before
>exporting the data (server-to-server), can really speed things up. In fact, I
>am suspicious that TSM may not be optimizing tape mounts for node exports, or
>at least under some circumstances. We observed very iffy behavior in this
>respect but never had time to investigate it enough to open an ETR on it.
>Check your actlog to see if you are seeing a lot of tape mount activity
>associated with the export process.
>
>If you are doing server-to-tape export, the above recommendation may not apply.
>
>..Paul
>
>At 02:04 PM 7/7/2011, Hughes, Timothy wrote:
>>Hello,
>>
>>I am currently doing exports and some of the exports are large (in my
>>opinion) and they are taking days anyone know how these can be sped up? Or
>>its just waiting game? Also we can't leave the running overnight during
>>backups because a least 2 times they have caused server the clients are being
>>imported to hang.
>>
>>
>>Also, has anyone had a issue where suspending exports caused the destination
>>TSM server to Hang or crash?
>>
>>
>>
>>Some Export total files and files remaining
>>
>>Total files to be transferred: 132,929
>> Files remaining: 119,517
>>
>>Total files to be transferred: 511,889
>> Files remaining: 426,470
>>
>>Total files to be transferred: 356,733
>> Files remaining: 191,494
>>
>>
>>Total files to be transferred: 816,599
>> Files remaining: 815,917
>>
>>
>>Total files to be transferred: 132,929
>> Files remaining: 119,517
>>
>>
>>Total files to be transferred: 511,889
>> Files remaining: 426,470
>>
>>
>> Total files to be transferred: 356,733
>> Files remaining: 191,494
>>
>>Total files to be transferred: 1,414,575
>> Files remaining: 1,229,671
>>
>>
>>
>>TSM SERVERS VERSION 6.2.2
>>
>>Thanks in advance for any comments!
>
>
>--
>Paul Zarnowski Ph: 607-255-4757
>Manager, Storage Services Fx: 607-255-8521
>719 Rhodes Hall, Ithaca, NY 14853-3801 Em: psz1 AT cornell DOT edu
--
Paul Zarnowski Ph: 607-255-4757
Manager, Storage Services Fx: 607-255-8521
719 Rhodes Hall, Ithaca, NY 14853-3801 Em: psz1 AT cornell DOT edu
|