ADSM-L

Re: [ADSM-L] VE 7.1.1.1 backup "freezing" a VM & question about "megablocks"

2015-03-08 11:08:04
Subject: Re: [ADSM-L] VE 7.1.1.1 backup "freezing" a VM & question about "megablocks"
From: "Arbogast, Warren K" <warbogas AT IU DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Sun, 8 Mar 2015 15:04:07 +0000
Steve,
If the virtual machines have dynamic disks, you may wish to consult with TSM 
Support about problems that can occur with that configuration, and the remedy.
With best wishes,
Keith Arbogast
Indiana University

On Mar 8, 2015, at 8:16 AM, Schaub, Steve wrote:

> In our situation, the backup had no problem.  One had completed, the other 
> was busy sending data and had to be cancelled.  as soon as the backups 
> finished & the snapshots were deleted, the servers started responding 
> normally.  No one knows why.  Of course this is a big red flag for our VM 
> Engineers.
> Thanks,
> -steve
> 
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
> Of Prather, Wanda
> Sent: Friday, March 06, 2015 3:30 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: [ADSM-L] VE 7.1.1.1 backup "freezing" a VM & question about 
> "megablocks"
> 
>>> We had a situation yesterday where 2 VE backups were causing the VM's to go 
>>> unresponsive.  No response to ping, unable to RDP, etc.  As soon as the 
>>> backup finished (or was killed in one case), the servers picked back up 
>>> where they left off.  They never rebooted, but you can actually see in the 
>>> Windows event logs a gap where no activity happens.  Has anyone seen this 
>>> behavior before?  VE is at 7.1.1.1, the Hosts are ESXi 5.0 U2, vCenter is 
>>> 5.5, windows 2008R2.
> 
> 
> 
> 
> 
> ooo!
> 
> Haven't seen that one before.
> 
> 
> 
> My basic VE debugging steps when a VM won't back up (all from the VM side):
> 
> 
> 
> *        check from VCenter that there are no outstanding VM snapshots for 
> those VM's (trigged by TSM or otherwise)
> 
> *        check from VCenter that there is no current performance alert for 
> those VM's
> 
> *        check from Vcenter that vmtools are up to date (it tells you if they 
> aren't)
> 
> *        do a VMware snap from VCenter (If VM can't snap it, nobody can).
> 
> 
> 
> If you can't get this far, it's a VMware problem..
> 
> 
> 
> Wanda Prather
> TSM Consultant
> ICF International Enterprise and Cybersecurity Systems Division
> -----------------------------------------------------
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