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VR Advisor error

Created: 30 Jul 2012 | Updated: 10 Aug 2012
Marianne van den Berg's picture
Marianne van den Berg Trusted Advisor Partner Accredited Certified
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Customer is interested in SFW and VVR.

He has installed VR Advisor (from SF 5.1SP2 software) on a number of Virtual servers (no SF yet) - VMware and Hyper-V. Some are W2008R2, others 2003. Some 64bit, some 32bit.

Out of 25 virtual servers with VR advisor installed, 18 are working fine, 7 giving errors:

                                        OPERATIONS           BLOCKS        AVG TIME(ms)
      TYPE NAME              READ     WRITE      READ     WRITE   READ  WRITE

Sat Jul 21 12:13:56 2012
vol C:                    155      1770      3827   2341722      0      0
vol E:                      0        78         0       600      0      0
Error 2(2) in sending the ioctl for device  \\?\Volume{d1fb56f4-806f-11e0-8d31-806e6f6e6963}. 

According to customer, there is nothing in common: 
Some are win 2008R2, others 2003. Some 64bit, some 32bit. Some are on VMWARE while others are on Hyper-V. All systems are virtual however. Some systems give the error immediately, while others give the error after a couple of minutes. 

Any idea where to start looking?

 

Quick Look Solution

Hi Marianne, Run "mountvol"

Hi Marianne,

Run "mountvol" to determine what the "\\?\Volume{d1fb56f4-806f-11e0-8d31-806e6f6e6963}" device is. 

The device might be having a problem with its performance counters that VRAdvisor is getting its numbers from.  Search Microsoft artlicles to see if there are any performance counter issues with the device type that you discover is having the error.

You might need to clear out unneeded Mount Manager entries by running the "vxscrub -p" command.  Microsoft has a similar command in the OS but I'm not sure exactly what it is.  The command does require a reboot.

You could also try removing and readding the device back to the server to see if the counters are reset and the error goes away.

Thank you,

Wally

 

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Wally_Heim's picture
Wally_Heim
Symantec Employee
31
Jul
2012
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0
SOLUTION

Hi Marianne, Run "mountvol"

Hi Marianne,

Run "mountvol" to determine what the "\\?\Volume{d1fb56f4-806f-11e0-8d31-806e6f6e6963}" device is. 

The device might be having a problem with its performance counters that VRAdvisor is getting its numbers from.  Search Microsoft artlicles to see if there are any performance counter issues with the device type that you discover is having the error.

You might need to clear out unneeded Mount Manager entries by running the "vxscrub -p" command.  Microsoft has a similar command in the OS but I'm not sure exactly what it is.  The command does require a reboot.

You could also try removing and readding the device back to the server to see if the counters are reset and the error goes away.

Thank you,

Wally

 

Marianne van den Berg's picture
Marianne van den Berg
Trusted Advisor
Accredited
Certified
31
Jul
2012
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Thanks for your time and

Thanks for your time and great advice, Wally.

I am going to site on Wednesday (tomorrow morning). Will let you know.

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
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Marianne van den Berg's picture
Marianne van den Berg
Trusted Advisor
Accredited
Certified
10
Aug
2012
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Unfortunately customer has

Unfortunately customer has decided that Raid level replication will be best in his environment.

I have no doubt that Wally's suggestion would solve this problem...

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links