How to backup LUNs

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How to backup LUNs

by Francesco Gallo-2 :: Rate this Message:

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Hi all,

is there some one who could share his own best pratics for backing up storage lun with DomU inside?

While testing the right approach I have realized this situation:

1. A clustered Volume Group named “XenVG” and many Logical Volumes named “<domUname>LV”;

2. domU installed directly on the lun (for example: /dev/sdm).

How could I backup them?

My hardware situation is:

1 Dell MD3000i storage

3 Dell 2950 servers

My software situation:

3 CentOS 5.3 clustered

3 XEN 3.3.1

Thanks all,

Francesco Gallo

XiNet S.r.L.

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Re: How to backup LUNs

by Fajar A. Nugraha-3 :: Rate this Message:

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On Fri, Nov 6, 2009 at 5:19 PM, <cluster@...> wrote:

> While testing the right approach I have realized this situation:
>
> 1. A clustered Volume Group named “XenVG” and many Logical Volumes
> named “<domUname>LV”;

AFAIK cluster VG can't do LVM snapshot. So you'll have to do backup on
domU side.
Windows have volume shadow copy, for Linux you can have LVM on domU
side (which is the default setup for RHEL domU created with
virt-install). If you zfs there's also zfs snapshot.

--
Fajar

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