Hi Michael,
I've looked at my storage pools and they are defined with caching turned
off. This is EMC SATA disk that I have just defined, so I am wondering if
that is my bottleneck at this point. Thanks for the suggestion!
********************************
Joni Moyer
Highmark
Storage Systems
Work:(717)302-6603
Fax:(717)302-5974
[EMAIL PROTECTED]
********************************
"Michael
Garnebode"
<Michael.Garnebod To
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Sent by: "ADSM: cc
Dist Stor
Manager" Subject
<[EMAIL PROTECTED] AW: [ADSM-L] Migration Speed Has
.EDU> Plummeted
08/17/2005 08:24
AM
Please respond to
"ADSM: Dist Stor
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<[EMAIL PROTECTED]
.EDU>
Hi Joni,
Have a look to your storagepool definition with "q stg f=d"
Migration Processes: 4
Next Storage Pool: WP_AZV01
Reclaim Storage Pool:
Maximum Size Threshold: 500 M
Access: Read/Write
Description: dp_azv01
Overflow Location:
Cache Migrated Files?: Yes
Collocate?:
Reclamation Threshold:
Maximum Scratch Volumes Allowed:
Delay Period for Volume Reuse:
You can update your storagepool definition with "upd stg"
regards
Michael
-----Ursprüngliche Nachricht-----
Von: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] Im Auftrag von
Joni Moyer
Gesendet: Mittwoch, 17. August 2005 14:19
An: [email protected]
Betreff: Re: [ADSM-L] Migration Speed Has Plummeted
Hello Everyone!
How do you know if caching is turned on? How/where can you turn it off? I
am having lousy migration speed perfomance as well. What can I look
at/change? I have an AIX 5.2 server at TSM 5.2.4.0 with LTO2 tape drives
attached. Thanks!
********************************
Joni Moyer
Highmark
Storage Systems
Work:(717)302-6603
Fax:(717)302-5974
[EMAIL PROTECTED]
********************************
"David E
Ehresman"
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Sent by: "ADSM: cc
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<[EMAIL PROTECTED] Re: Migration Speed Has Plummeted
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08/17/2005 08:09
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Please respond to
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<[EMAIL PROTECTED]
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>We back up around 220 Gb of data to the disk pool overnight, then migrate
>(with caching on) to cartridge in the morning.
>
I assume you mean TSM storage pool caching rather than 3390 caching. If
so, I'd turn off caching for a day and see if that makes a difference. It
is my understanding that TSM caching, while optimizing restore times, can
cause performance problems in other TSM areas.
David
