VMware, LVM and Raid information needed

[seanyseansean]

While we're talking about LVM snapshots, I have a question about them.

We backup with rsync from a snapshot early in the morning when load is low. We do an omsuspend before the snapshot. When we actually kick off the rsync we get plenty of messages complaining about missing files. Googling this, it seems it's to do with the underlying file system being written to. But I thought a snapshot would be a perfect moment-in-time thing?

So the question is - if I rsync my snapshot with associated error messages to a remote location, will that rsync'd image always be a valid one?

Sean

[athlon_crazy]

Just want to share mine:

Hardware (Clone)
AMD Athlon 64 X2 4000+ Dual Core + Asus M2VM X2 mobo
5GB DDR2 RAM, (NFS BOX=160GB SATA + 160GB PATA)
VMware ESX 3.5
Guest OS SLES10 (No LVM)
Scalix User = 30
CLamAV

At the very first, I tried to run the vm image (SLES10 + scalix) on the SATA disk via NFS but after getting lots of I/O error which crashed my vm, then I moved it to my new PATA. The performance quite OK but most important is scalix stability. BTW scalix now running on my ESX without problem and I'm happy with it.

[Mon1018]

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[mikevl]

Hi

vmware and Scalix do not play very well together.

viewtopic.php?p=51390

Vmware adds a 30% hit in disk performance to the datastore. Since Scalix is largely I/O bound this is not a good combination. The use of SATA drive may only exaserbate the issue even more.

Check out the release notes
http://www.scalix.com/community/downloa ... tation.php
In the RED text box about 66% donw the document the I/O requirements are explained.

This may help

Mike