Hello guys!
I opened PMR and traced the problem. There is already an APAR open for this
problem and thankfully it has already been fixed in the TSM 7.1.1.3 patch.
http://www-01.ibm.com/support/docview.wss?uid=swg1IT01824
Im currently running some test backups, but it looks very good. Just wanted to
let you know in case anybody stumbles upon the same problem.
The fix will be included in the TSM BA client versions 6.3.3, 6.4.3 and 7.1.2
which will be released on April 17th, I think.
Regards,
John
> Gesendet: Sonntag, 01. März 2015 um 15:18 Uhr
> Von: "Del Hoobler" <hoobler AT US.IBM DOT COM>
> An: ADSM-L AT VM.MARIST DOT EDU
> Betreff: Re: [ADSM-L] Aw: Re: [ADSM-L] Re: [ADSM-L] Exchange Backup with
> Flashcopy Manager EXTREMELY slow
>
> Hi John,
>
> You are skipping the integrity check already and you are not sending
> any data across the network. This really only leaves a few things
> left to check, the mailbox history, the Exchange Server "prepare"
> function,
> and the snapshot itself.
>
> I recommend opening a PMR to see where the issue is.
> The support team can get a trace and find out which
> step the delay is occurring in.
>
>
> Del
>
> ----------------------------------------------------
>
>
>
>
> "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 02/27/2015
> 03:46:19 AM:
>
> > From: John Keyes <rakyr AT GMX DOT NET>
> > To: ADSM-L AT VM.MARIST DOT EDU
> > Date: 02/27/2015 03:48 AM
> > Subject: Aw: Re: [ADSM-L] Re: [ADSM-L] Exchange Backup with
> > Flashcopy Manager EXTREMELY slow
> > Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
> >
> > Hello guys,
> >
> > the time for our Exchange Backups is still steadily increasing. As
> > you can see below, a vss snapshot now takes 5 times(!) as much time
> > as it did just 3 weeks ago. These log excerpts are all from the same
> > server and database and are all incremental backups (except the one
> > on 02/22/2015, which is full backup). Im now absolutely sure this is
> > not normal but I have no Idea what the problem could be. The
> > exchange admin assured me that he changed nothing on the server.
> > The exchange database volumes and the backup volumes all reside on
> > the same storage, which is connected through fibrechannel. So
> > network traffic cant be a problem.
> > Anyone got some ideas?
> >
> > 02/05/2015 13:26:19 ANS1750I Volume mount point 'c:
> > \exchangedatabases\dag1-01\dag1-01.log' is mounted to volume 'C:
> > \ExchangeDatabases\DAG1-01\DAG1-01.log'. Using snapshot volume for
> > 'C:\ExchangeDatabases\DAG1-01\DAG1-01.log' to backup.
> > 02/05/2015 13:28:20 VSS Backup operation completed with rc = 0.
> > 02/05/2015 13:28:20 Elapsed Processing Time: 209.85 seconds
> > 02/06/2015 16:10:10
> > ------------------------------------------------------------
> > 02/07/2015 19:10:39 ANS1750I Volume mount point 'c:
> > \exchangedatabases\dag1-01\dag1-01.log' is mounted to volume 'C:
> > \ExchangeDatabases\DAG1-01\DAG1-01.log'. Using snapshot volume for
> > 'C:\ExchangeDatabases\DAG1-01\DAG1-01.log' to backup.
> > 02/07/2015 19:12:42 VSS Backup operation completed with rc = 0.
> > 02/07/2015 19:12:42 Elapsed Processing Time: 206.52 seconds
> > 02/08/2015 01:33:13
> > ------------------------------------------------------------
> > 02/15/2015 00:17:25 ANS1750I Volume mount point 'c:
> > \exchangedatabases\dag1-01\dag1-01.log' is mounted to volume 'C:
> > \ExchangeDatabases\DAG1-01\DAG1-01.log'. Using snapshot volume for
> > 'C:\ExchangeDatabases\DAG1-01\DAG1-01.log' to backup.
> > 02/15/2015 00:20:32 VSS Backup operation completed with rc = 0.
> > 02/15/2015 00:20:32 Elapsed Processing Time: 406.69 seconds
> > 02/16/2015 00:13:56
> > ------------------------------------------------------------
> > 02/20/2015 00:17:24 ANS1750I Volume mount point 'c:
> > \exchangedatabases\dag1-01\dag1-01.log' is mounted to volume 'C:
> > \ExchangeDatabases\DAG1-01\DAG1-01.log'. Using snapshot volume for
> > 'C:\ExchangeDatabases\DAG1-01\DAG1-01.log' to backup.
> > 02/20/2015 00:19:54 VSS Backup operation completed with rc = 0.
> > 02/20/2015 00:19:54 Elapsed Processing Time: 423.87 seconds
> > 02/21/2015 00:14:38
> > ------------------------------------------------------------
> > 02/21/2015 00:20:30 ANS1750I Volume mount point 'c:
> > \exchangedatabases\dag1-01\dag1-01.log' is mounted to volume 'C:
> > \ExchangeDatabases\DAG1-01\DAG1-01.log'. Using snapshot volume for
> > 'C:\ExchangeDatabases\DAG1-01\DAG1-01.log' to backup.
> > 02/21/2015 00:23:42 VSS Backup operation completed with rc = 0.
> > 02/21/2015 00:23:42 Elapsed Processing Time: 550.66 seconds
> > 02/22/2015 00:13:08
> > ------------------------------------------------------------
> > 02/22/2015 00:23:56 ANS1750I Volume mount point 'c:
> > \exchangedatabases\dag1-01\dag1-01.log' is mounted to volume 'C:
> > \ExchangeDatabases\DAG1-01\DAG1-01.log'. Using snapshot volume for
> > 'C:\ExchangeDatabases\DAG1-01\DAG1-01.log' to backup.
> > 02/22/2015 00:31:09 VSS Backup operation completed with rc = 0.
> > 02/22/2015 00:31:09 Elapsed Processing Time: 1,087.95 seconds
> > 02/23/2015 00:13:50
> > ------------------------------------------------------------
> > 02/23/2015 00:20:13 ANS1750I Volume mount point 'c:
> > \exchangedatabases\dag1-01\dag1-01.log' is mounted to volume 'C:
> > \ExchangeDatabases\DAG1-01\DAG1-01.log'. Using snapshot volume for
> > 'C:\ExchangeDatabases\DAG1-01\DAG1-01.log' to backup.
> > 02/23/2015 00:23:43 VSS Backup operation completed with rc = 0.
> > 02/23/2015 00:23:43 Elapsed Processing Time: 601.17 seconds
> > 02/24/2015 00:03:46
> > ------------------------------------------------------------
> > 02/24/2015 00:11:25 ANS1750I Volume mount point 'c:
> > \exchangedatabases\dag1-01\dag1-01.log' is mounted to volume 'C:
> > \ExchangeDatabases\DAG1-01\DAG1-01.log'. Using snapshot volume for
> > 'C:\ExchangeDatabases\DAG1-01\DAG1-01.log' to backup.
> > 02/24/2015 00:15:55 VSS Backup operation completed with rc = 0.
> > 02/24/2015 00:15:55 Elapsed Processing Time: 737.75 seconds
> > 02/25/2015 21:03:26
> > ------------------------------------------------------------
> > 02/25/2015 21:13:07 ANS1750I Volume mount point 'c:
> > \exchangedatabases\dag1-01\dag1-01.log' is mounted to volume 'C:
> > \ExchangeDatabases\DAG1-01\DAG1-01.log'. Using snapshot volume for
> > 'C:\ExchangeDatabases\DAG1-01\DAG1-01.log' to backup.
> > 02/25/2015 21:18:49 VSS Backup operation completed with rc = 0.
> > 02/25/2015 21:18:49 Elapsed Processing Time: 930.87 seconds
> > 02/26/2015 21:03:34
> > ------------------------------------------------------------
> > 02/26/2015 21:15:08 ANS1750I Volume mount point 'c:
> > \exchangedatabases\dag1-01\dag1-01.log' is mounted to volume 'C:
> > \ExchangeDatabases\DAG1-01\DAG1-01.log'. Using snapshot volume for
> > 'C:\ExchangeDatabases\DAG1-01\DAG1-01.log' to backup.
> > 02/26/2015 21:21:19 VSS Backup operation completed with rc = 0.
> > 02/26/2015 21:21:19 Elapsed Processing Time: 1,073.57 seconds
> >
> > > Gesendet: Dienstag, 24. Februar 2015 um 13:36 Uhr
> > > Von: "Billaudeau, Pierre" <P.Billaudeau AT SAQ.QC DOT CA>
> > > An: ADSM-L AT VM.MARIST DOT EDU
> > > Betreff: Re: [ADSM-L] Aw: Re: [ADSM-L] Exchange Backup with
> > Flashcopy Manager EXTREMELY slow
> > >
> > > Hi John,
> > > I had a similar situation with Exchange 2010 TSM DP
> > backups and the reason was the VM had been Vmotioned from one ESX
> > to another. Lan speed went from 1Gbs to 100Gbs. You might want to check
> this.
> > >
> > > Pierre Billaudeau
> > > Administrateur stockage
> > >
> > > -----Message d'origine-----
> > > De : ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] De la
> > part de Jeanne Bruno
> > > Envoyé : 23 février 2015 15:43
> > > À : ADSM-L AT VM.MARIST DOT EDU
> > > Objet : Re: [ADSM-L] Aw: Re: [ADSM-L] Exchange Backup with
> > Flashcopy Manager EXTREMELY slow
> > >
> > > Hello. we skip integrity check as well. Backups stored on a DS3512
> device
> > >
> > > -----Original Message-----
> > > From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On
> > Behalf Of John Keyes
> > > Sent: Monday, February 23, 2015 2:47 PM
> > > To: ADSM-L AT VM.MARIST DOT EDU
> > > Subject: [ADSM-L] Aw: Re: [ADSM-L] Exchange Backup with Flashcopy
> > Manager EXTREMELY slow
> > >
> > > Thank you Chavdar Cholev and Jeanne Bruno for sharing. I forgot to
> > tell, we do skip the integrity check, and there are only passive
> > Databases on the server.
> > > Are your backups going to TSM server or to a local storage? Im
> > interested either way.
> > >
> > > Best Regards,
> > > John
> > >
> > >
> > >
> > > Gesendet: Montag, 23. Februar 2015 um 20:20 Uhr
> > > Von: "Chavdar Cholev" <chavdar.cholev AT GMAIL DOT COM>
> > > An: ADSM-L AT VM.MARIST DOT EDU
> > > Betreff: Re: [ADSM-L] Exchange Backup with Flashcopy Manager
> > EXTREMELY slow We have ~ 2TB full exchange backup and it takes ~ 20
> > hours. There is exch db consistency check before backup which takes
> > considerable amount of time.
> > > It can be switched off... but it is not recommnded....
> > >
> > > On Monday, 23 February 2015, John Keyes <rakyr AT gmx DOT net> wrote:
> > >
> > > > Hello fellow TSM Admins!
> > > >
> > > > I'm struggling with Exchange Backup which over the course of the
> last
> > > > few Days (mainly since the last full backup this weekend) takes
> about
> > > > 3-4 times as long as before.
> > > > We have Exchange 2013 DAG with 48 Databases and a dedicaded VM to do
> > > > the Backups (Flashcopy Manager 4.1.1, Backupdestination=local, on an
> > > > IBM V7000 Storage).
> > > > Right now even an incremental backup of 1 database takes ~12
> minutes,
> > > > but the volume is only 30GB big and has only 5GB (5000 x 1MB Files)
> on
> > > > it. Two weeks ago this would only take 3 Minutes.
> > > > A Full backup takes about half an hour (so I couldn't even complete
> a
> > > > full backup for every database in one day). I also tried to
> > > > full-backup the same database twice right after one another,
> > with no difference.
> > > >
> > > > This can hardly be normal, can it? Has anyone had the same problems
> > > > and maybe could point me in the right direction?
> > > > Also it would be great if anyone could share how much time their
> > > > backups take...
> > > >
> > > > Best regards,
> > > > John
> > > >
> > >
> > > ------------------
> > >
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