Virtual machine unavailable during the snapshot

Hello

I wanted to check with others to see how snapshots affect your virtual machines. I work in several small VMware environments and have seen similar effects when taken snapshots VMs.

Today I made a SQL server (Windows 2K 8 running SQL 2008) fueling a sharepoint site. The snapshot lasted about 30 seconds and during this time, the sharepoint site was not available. In this case the ESX Server runs on a 1.5 3.5 years HP DL380 G5 with a HP MSA2324 G2 SAN on the back-end.

After noticing the outtage service I tried taking a file & server snapshots print somewhere else, in this case running ESX 4.0 on a HP DL380 G6 with an EMC CX300 on the back-end. In this case, I also experienced a service outtage, I was unable to access file shares when the snapshot. In this case, the snapshot took a few minutes to complete, I guess it is because data drives are on 7.2 K disks. During the first minute of the snapshot I couldn't access the shares, once he got close to 100%, I was able to access file shares.

In both scenarios, I only lost a ping, from the beginning of the snap. When deleting snapshots, I have not experienced any loss of service.

Is this a normal experience or could it be caused by a misconfiguration or a lack of resources?

Thank you

I would have a look at the Snapshots of understanding . Depending on the options that you have chosen with your snapshot - suspend or memory from the operating system will freeze activity until the snapshot is completed. Also take a look at http://kb.vmware.com/kb/5962168

Tags: VMware

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