On Thu, 3 Dec 2009, Vishal Verma -X (vishaver - Embedded Resource Group at Cisco) wrote:
> 1. Under scenario where, several hard-drives are part of LVM
> volume group and if one of hard-disk gets corrupted then would whole
> volume group be inaccessible ?
Short answer: it depends
Long answer: For raw plain hard drives, only logical volumes using the
affected drive are inaccessible. Think of LVM as managing fancy run-time
expandable partitions. You may wish to ensure that the LVM metadata (the LVM
equivalent of the partition table) is stored in multiple locations, or
frequently backed up from /etc/lvm.
More often, the "drives" that are part of LVM are software or hardware RAID
drives. In addition, Linux LVM supports mirroring (RAID1) at the LV level
- although not yet as smoothly as other LVM systems.
> What would be impact on volume group's filesystem ?
Same as with any other partition that goes south.
> 2. From stability perspective, which version of LVM is better on
> Linux kernel 2.6.x, LVM2 or LVM1 ?
LVM2
--
Stuart D. Gathman <stuart@bmsi.com>
Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.
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