Solved

Windows Server Backup Fialing During Shadow Copy Phase

Posted on 2014-12-22
12
70 Views
Last Modified: 2015-01-09
I administer a Windows Server 2008 box. For the past few weeks, our backups have only sporadically worked. Event Viewer and errors within WSB tell me that something is happening during the Shadow Copy phase of the backup. It appears that the Storage MiniPort Driver cuts out during this time and that's what's causing the backup.

There have been no changes made to the machine prior to this happening. We actually have Shadow Copy turned off on this server, so there's really nothing there to back up. Is there a way to turn this part of the backup off? Should I be looking more at the Storage Miniport Driver?

I found a link that suggested upping the limit of time the backup attempts to create a Shadow Copy before it times out. I'm currently attempting my first backup after making that change.
0
Comment
Question by:Wesley Johnson
  • 6
  • 6
12 Comments
 
LVL 46

Expert Comment

by:noxcho
Comment Utility
Can you post the message of EventViewer here?
0
 

Author Comment

by:Wesley Johnson
Comment Utility
The two that seem to occur around the time the backups are attempted:

"The device 'Storage miniport driver" (long address, will type it all out if it helps)  disappeared from the system without being prepared for removal."

"The devices "Msft Virtual Disk SCSI Disc Device' (another long address) disappeared from the system without being prepared for removal."

I assume this means the external drives are sporadically inaccessible at the time of the backup. We have a rotation of three WD external drives for our backups. I've noticed before while the backup is happening that a notification that the "Storage Miniport Driver" was successfully installed randomly displays. I've tried switching USB ports in case the one we used was going bad. The only other thing I can think of is the cable, but we don't have any extras.
0
 
LVL 46

Expert Comment

by:noxcho
Comment Utility
Do you have a powered USB hub you can test the external drives with?
The sporadic disconnections are not a good sign. They are usually caused either by bad driver or by failing USB port (power for example is not enough).
0
 

Author Comment

by:Wesley Johnson
Comment Utility
I'll see if I can dig up a hub to test. A bad port was my initial thought; upon that thought, I moved it to one of the ports in the back. The drive was put into a front port by the person who previously performed these tasks. I know those ports usually carry a lower voltage.

The storage miniport driver is my biggest suspect in this case.
0
 
LVL 46

Expert Comment

by:noxcho
Comment Utility
Wait. Are you running Hyper-V on this server?
I assume yes. Because the second error refers to virtual disk. According to MS this can be just simply ignored: http://support.microsoft.com/kb/958669
0
 

Author Comment

by:Wesley Johnson
Comment Utility
Hyper-V is on the server.

Is there a way to tell the backup to ignore the shadow copy phase? We don't have that enabled on our main drive. It's still sporadically timing out. Tuesday the backup ran as planned; yesterday it failed.
0
IT, Stop Being Called Into Every Meeting

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

 
LVL 46

Expert Comment

by:noxcho
Comment Utility
As far as I know - no.
Are you imaging the Host or the virtual machines? As far as I understood the host is being imaged. Maybe you need to backup virtual machines only?
0
 

Author Comment

by:Wesley Johnson
Comment Utility
Just imaging the host.
0
 
LVL 46

Accepted Solution

by:
noxcho earned 500 total points
Comment Utility
If the host is used for running virtual machines only (does not play any other role) then you do not need to backup it often. More important are virtual machines. I would keep imaging virtual machines daily and imaging host once per month.
Whatever happens with host - you can reconfigure it and then import your virtual machines.

Microsoft says ignore the error events and does not consider them to be some danger for the server.
0
 

Author Comment

by:Wesley Johnson
Comment Utility
Our backups work so sporadically, though. This server is also a host to network shares we have set up for staff to use; that's really what we'd hate to lose. But, just yesterday, we finally have our server upgrade appointment scheduled. I'm going to abandon this question and re-open if it happens after our new ones are in place.

I'm going to give you points for all your advice, though.
0
 

Author Closing Comment

by:Wesley Johnson
Comment Utility
Didn't exactly solve my problem, but he gave me great advice.
0
 
LVL 46

Expert Comment

by:noxcho
Comment Utility
Thanks. Thats why I wrote IF the host....
If it has shares sure the backup is obligatory.
0

Featured Post

Maximize Your Threat Intelligence Reporting

Reporting is one of the most important and least talked about aspects of a world-class threat intelligence program. Here’s how to do it right.

Join & Write a Comment

I had a question today where the user wanted to know how to delete an SSL Certificate, so I thought that I would quickly add this How to! Article for your reference. WHY WOULD YOU WANT TO DELETE A CERTIFICATE? 1. If an incorrect certificate was …
Restoring deleted objects in Active Directory has been a standard feature in Active Directory for many years, yet some admins may not know what is available.
This tutorial will give a an overview on how to deploy remote agents in Backup Exec 2012 to new servers. Click on the Backup Exec button in the upper left corner. From here, are global settings for the application such as connecting to a remote Back…
This tutorial will walk an individual through the process of transferring the five major, necessary Active Directory Roles, commonly referred to as the FSMO roles to another domain controller. Log onto the new domain controller with a user account t…

744 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now