Server suddenly become unresponsive

Hi All,

From some time now, our DC suddenly becomes unresponsive. Each time when this happens we had to perform a Hard reboot. However I found the following event occurring ever time before the server becomes unresponsive.

EVENT 260, stcvsm

"While re-activating on \Device\HarddiskVolume1, VDIFF has detected that previous boot session ended with a crash. VDIFF is terminated."

I have also attached the event log image file for your convenient.

Any help would be appreciated to solve this.

Thank you.

Server consists of:

Windows Server 2008 R2
ShadowProtect Server Edition 4.1
Exchange 2010
Who is Participating?
bassa1985Connect With a Mentor Author Commented:
Hi Guys,

Thank you for the comments. I did check the HDD on the server and the drives on the NAS box. The drives seems to be healthy.

However I contacted StorageCraft Support and they recommended me to perform the following:

•      Increase the Paging File to 4 times the Physical Memory on a partition that isn’t the   System partition.
•      Increase the IRP Stacksize to 24
•      Update ShadowProtect version

I performed the above and it seems to work fine now. Hope this help.

I'd suggest possible hard disk problems,. might pay to run a scan or check for errors on the physical disks.
Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
Why not ask the HDD vendor to do a simple health check to see if there is any issues with their drive ....
What kind of server is this ?
How many drives do you have ?
What is "\Device\HarddiskVolume1" SAN Lun\NAS\Local Disk ?
What all applications are running ?
Is there an Antivirus on the server if so try doing a full scan .

- Rancy
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Watch this video to see how easy it is to make mass changes to Active Directory from an external text file without using complicated scripts.

Tony CapewellCommented:
I have started getting the same exact errors and the server just crashes.

We are running Windows Server 2008 R2 as Virtual Machines under Hyper-V using local disks.

I am seeing at the time this happens large amount of CPU usage - I am also seeing the used memory on the server slowly increase throughout the day - w2wp.exe seems to be the culprit of what seems like a memory leek.

Any ideas welcome as this is now really starting to annoy me!!! :-(
Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
Wow ... good to know and thanks for sharing the information :)

- Rancy
Tony CapewellCommented:
I will attempt what has been described above today before accepting the fix.
bassa1985Author Commented:
I found the solution by researching and with the help of ShadowProtect team.
Found this post, this worked for me also, same problem, same solution.
Awsome fix, I had the exact same issue, Windows 2008, Shadowprotect 4.2, Exchange 2007.
Server would become non responsive on LAN and console during incremental backups of shadowprotect. After the backup finishes, the server would come back online without intervention.

This only really became noticeable during longer backups as we have a small office with only 8 staff.

THX !!
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