Error occurred by restarting the virtual machine after instant collection

Configuration:

2 X ESX 3.5 U3 in cluster (Enterprise license) + Virtual Center 2.5 update 3

18 customers running Win2k3 servers and Oracle on RHEL 3 servers

2 X SAN DELL MD3000i with two controllers (active / active).

Question: Last night, when the backup of VCB, we lost the SAN n ° 1 completely (two controllers at the same time).

We have a few customers with Microsoft Raid 1 (1 on San 1 and 1 drive on San 2).  guests in mirror mode survived 40 minutes after the San n ° 1 crashed.

After checking saves files I found that: ESX shutdowned guests due to a problem with the snapshot.

I feel really bad this morning... because I told my boss we're safe if we lose 1 SAN because we are mirrored on 2 SAN.

Why stop ESX invited after problems with snapshots. Also, we received a lot of Virtual Center with false alert alarms (virtual machine does not).

ESX filled 800 megs of log files in a few minutes with the same message (path fails, try another a blabla).

What the purpose of putting my guests in mirror mode stop ESX if my guests after losing the path during backup?

Hello

Conclusion?

If SAN #1 accident during the VCB backup, you're dead?

If you use software raid within the virtual machine is then SAN1 dies, the VM will crash because the Bank of support file (this case a delta) is no longer available and there is no way to read or write data even.

Software RAID does not apply to things outside of the virtual machine. A solution would be to have a device that can do Raid through mirroring without.

Best regards

Edward L. Haletky

VMware communities user moderator

====

Author of the book "VMWare ESX Server in the enterprise: planning and securing virtualization servers, Copyright 2008 Pearson Education.»

SearchVMware Blog: http://itknowledgeexchange.techtarget.com/virtualization-pro/

Articles of blue Gears - http://www.itworld.com/ and http://www.networkworld.com/community/haletky

As well as virtualization at http://www.astroarch.com/wiki/index.php/Virtualization Wiki

Tags: VMware

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