Author: "Prather, Wanda" <Wanda.Prather AT ICFI DOT COM>
Date: Fri, 20 Dec 2013 04:35:38 +0000
TSM 6.3.4.00 on Win2K8 Perhaps some of you that have dealt with the dedup "chunking" problem can enlighten me. TSM/VE backs up to a dedup file pool, about 4 TB of changed blocks per day I currently h
Author: Erwann Simon <erwann.simon AT FREE DOT FR>
Date: Fri, 20 Dec 2013 06:32:32 +0100
Hi Wanda, Expire Inventory is queuing chunk for deletion. See the Q PR output when, at the end of the expire inventory process, the total numbers of nodes have been reached. No more deletion of objec
Hi Wanda, I'm using Deduplication and have found that tsm life would be much easier if the stg pool was kept smaller under 3TB in size. I haven't done enough testing with this, and I know it is sligh
Author: "Sergio O. Fuentes" <sfuentes AT UMD DOT EDU>
Date: Fri, 20 Dec 2013 15:38:34 +0000
Wanda, In trying to troubleshoot an unrelated performance PMR, IBM provided me with an e-fix for the dedupdel bottleneck that it sounds like you're experiencing. They obviously will want to do their
Sergio and Wanda, Thanks for your posts! I opened PMR 10702,L6Q,000 a couple weeks ago for slow performance [recently completely fell off the cliff!] with our SRV3 TSM v6.3.4.200 service that *was* s
Author: "Prather, Wanda" <Wanda.Prather AT ICFI DOT COM>
Date: Fri, 20 Dec 2013 16:35:03 +0000
Woo hoo! That's great news. Will open a ticket and escalate. Also looking at client-side dedup, but I have to do some architectural planning, as all the data is coming from one client, the TSM VE dat
Author: "Prather, Wanda" <Wanda.Prather AT ICFI DOT COM>
Date: Fri, 20 Dec 2013 16:45:33 +0000
Please do post results - expiration just ran for me, queue > 30M! 45 TB dedup pool --Original Message-- From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of James R Owen Se
Author: "Sergio O. Fuentes" <sfuentes AT UMD DOT EDU>
Date: Fri, 20 Dec 2013 17:04:21 +0000
Client-side dedup and simultaneous-write to a copy pool are mutually exclusive. You can't do both, which is the only theoretical way to enforce deduprequiresbackup with client-side dedup. I suppose I
I can second that Sergio, Backup stgpools to copy tapes is not pretty, and is an intensive process to rehydrate all that data. The one extra thing I did was split the database across multiple folder
Author: Skylar Thompson <skylar2 AT U.WASHINGTON DOT EDU>
Date: Fri, 20 Dec 2013 11:28:07 -0800
While we don't do deduplication (tests show we gain less than 25% from it), we also split our DB2 instances across multiple, physically-separate volumes. The one thing to note is that you have to dum
Author: Erwann Simon <erwann.simon AT FREE DOT FR>
Date: Fri, 20 Dec 2013 20:31:00 +0100
Hi All, Is someone using this script for reporting purpose ? http://www-01.ibm.com/support/docview.wss?uid=swg21596944 -- Best regards / Cordialement / Erwann SIMON -- Mail original -- De: "Wanda Pra
Is anyone doing stgpool backups to a dedup file copy pool? -- Paul Zarnowski Ph: 607-255-4757 Manager of Storage Services Fx: 607-255-8521 IT at Cornell / Infrastructure Em: psz1 AT cornell DOT edu 7
Hi Skylar ! Yes that would be the easy way do it, there is an option to rebalance the I/O after you add the new file systems to the database. I had already setup TSM before the performance tuning gui
Author: "Colwell, William F." <bcolwell AT DRAPER DOT COM>
Date: Fri, 20 Dec 2013 22:09:34 +0000
Hi Wanda, some quick rambling thoughts about dereferenced chunk cleanup. Do you know about the 'show banner' command? If IBM sends you an e-fix, this will tell you what it is fixing. tsm: xxxxx>show