[Triumf-linux-managers] Re: Difference B/N LVM and Extended partitioning.

Konstantin Olchanski olchansk at triumf.ca
Fri Oct 27 07:03:20 PDT 2006


I have mixed experiences with LVM. On one hand, I have used it with great
effect to reshape a raid5 array on mirror.triumf.ca from 3 to 4 disks,
and the LVM ability to shuffle around and resize the disk volumes helped a lot.
On the other hand, LVM probably prevented us from recovering the failed
disk array on ibm00.triumf.ca (unless it was scrambled by the hardware
raid system, but I will save that for another discussion).

I find LVM more complex compared to "fdisk+mdadm" and I am not sure
if LVM can handle common tasks, like moving disks between machines,
booting from logical volumes and recovering from various failures.

-- 
Konstantin Olchanski
Data Acquisition Systems: The Bytes Must Flow!
Email: olchansk-at-triumf-dot-ca
Snail mail: 4004 Wesbrook Mall, TRIUMF, Vancouver, B.C., V6T 2A3, Canada


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