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Avamar 7 FLR and LVM Full disk support ?
Hi !
We're using Avamar Proxy to make image backups of RHEL 6.4 VMs. Those vms are using fulldisk LVM (opposite to LVM in partitions) and we're unable to use File Level restore despite announced support for LVM.
Any idea on the why of the problem or should we open a SR ?
Regards,
J_H_
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May 20th, 2014 09:00
none of my Linux servers can use FLR -
seems it does have support for it, but only if it is configured in a specific way.
it seems none of my Linux have ext2 or ext3 formatting -
so I do a once a week vm backup (so I could rebuild)
and a daily backup like a physical server.
this is the list of items that would prevent you from doing FLR.
File-level restore limitations
The following limitations apply to file-level restore as described in “Restoring specific
folders or files” on page 86:
◆ • Unformatted disks
• GUID Partition Table (GPT) disks
• FAT16 filesystems
• Extended partitions (that is, any virtual disk with more than one partition or when
• Encrypted partitions
◆ ◆ ◆ Manager (LVM):
• Only ext2 and ext3 formatting is supported
dynamox
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May 20th, 2014 09:00
you must be looking at really old release notes, ext4 is fully supported. I am using FLR with RHEL5 and RHEL6..works like a champ.
dynamox
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May 20th, 2014 10:00
RHEL or other flavors ? what errors are you getting ?
J_H_
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May 20th, 2014 10:00
my apologies that list was from version 6
and I have upgraded to version 7
but I still cannot FLR my unix VM backups. never have been able to.
J_H_
498 Posts
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May 20th, 2014 11:00
rhel5
or
ubuntu
dynamox
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May 20th, 2014 12:00
can't help you with Ubuntu but we got the same on RHEL, need to set partition type to Linux LVM (8e)
fdisk /dev/sde
p ( print partition)
t ( type)
1 ( partition number)
8e ( for type)
p ( print to make sure it changed from 83 to 8e)
w ( write change)
Brik_fr
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May 22nd, 2014 00:00
Hi Dynamox, your reply is OK but I was originally talking about a full disk LVM (the PV is created on the whole disk) like this example :
Here is what we do to resize disks in our virtual environment :
It's both much easier and not disruptive than using partition-based LVM .
I think it's all about the lack of partition but I'd like a confirmation : Using partition-based LVM is really a loss in virtual environment as you're limited to 3 extents of a disk (adding a partition to the extended disk and add it to the LVM each time) before you cannot use FLR anymore (over 3 partitions you have to use extended partition which is not supported by FLR).
dynamox
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May 22nd, 2014 05:00
i am not a system admin, so i have no control how my Linux guys are setting things up. I do have to make sure they can recover the data
J_H_
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May 22nd, 2014 07:00
I have to make sure I can recover the data too.
that is why I have to do linux vm backups 2 ways
once a week as a vm
daily as a physical.
dynamox
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May 22nd, 2014 07:00
once we made the change i provided above (which was online, non-disruptive), we are no longer getting the UUID error message and can successfully restore using FLR.