'Aw: Re: [ADSM-L] Re: [ADSM-L] Exchange Backup with Flashcopy Manager EXTREMELY slow'

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List:       adsm-l
Subject:    Aw: Re: [ADSM-L]  Re: [ADSM-L] Exchange Backup with Flashcopy Manager EXTREMELY slow
From:       John Keyes <rakyr () GMX ! NET>
Date:       2015-02-27 8:46:19
Message-ID: trinity-fa41989e-b133-40c6-90e5-41a29f89ccd2-1425026779017 () 3capp-gmx-bs24
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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@SAQ.QC.CA>
> An: ADSM-L@VM.MARIST.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@VM.MARIST.EDU] De la part de Jeanne \
> Bruno Envoyé : 23 février 2015 15:43
> À : ADSM-L@VM.MARIST.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@VM.MARIST.EDU] On Behalf Of John Keyes
> Sent: Monday, February 23, 2015 2:47 PM
> To: ADSM-L@VM.MARIST.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@GMAIL.COM>
> An: ADSM-L@VM.MARIST.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@gmx.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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