[CentOS] LVM & Stripe
christopher.chan at bradbury.edu.hk
Tue Mar 9 00:31:00 UTC 2010
On Tuesday, March 09, 2010 06:40 AM, Lincoln Zuljewic Silva wrote:
> Hello list,
> I have a question about LVM.
> My server has five disks and I will use it to create a LVM environment.
> I saw in the lvcreate man page that I can use the “-i” option to set
> the number of disks that I want to stripe the lvols, but this option
> doesn’t exists in the “lvchange” option (in case I add new disks to
> the VG).
> I had in mind: create 10 lvols – “lvcreate -i5 -L 10G MyVG
> /dev/MyVG/lvol[1-10]” and in the future, add more disks and increate
> the stripe value of the existing lvols.
I would recommend md striping over lvm but then lvm is a bit more
flexible on that score if you have disks of varying size. What are you
using as your physical volumes?
> Does anybody knows how to change the parameter “-i" of a lvol that
> already exists?
It appears to be fixed at creation time. Kinda hard to let you mess
around with stripesize and what not after stuff has been laid out on the
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