Marek.Les@xxxxxxxxxxxxxxx schrieb:
>
> Hi there,
>
> Our company is in the process of moving the production server data on a
> enterprise storage servers and therefore we are considering which setup
> would have the best performance and stability at the same time. Our
> preliminary tests showed us that, at the filesystem level, XFS performs
> best. Unfortunately, to be capable of growing the volumes we need to add
> another layer - the volume manager. This increases the chances for
> something to go wrong.
> As I've read through the mailing list and other sources, there are only two
> possible software packages on Linux - LVM and EVMS. From what I've read I
> understood that LVM 1.x is feature-frozen and maybe even bugsolve-frozen in
> favor of LVM2 development (see the deadlock while using xfs_freeze issue).
> LVM 2.x is unstable beta and EVMS is so fresh that no real experience has
> been heard of.
> I understand that there's no bug-free software and no guarantee of anything
> but maybe some of you have some enterprise-level experience with, say, 2+
> TB data pool on XFS and some volume manager. I appreciate any reference of
> any kind, some known imcompatibilies, what mistakes to avoid.. it would
> help me a lot.
I don't know the kind of storage you're going to use. There are ways to
create blockdevices which you can enlarge later, for example a linear
array where you just concatenate disks, or with some hardware RAID or
high end storage solution. It's then the same procedure like having a
100G disk with only one partition of 20G. You can enlarge (delete and
create the larger one with the same starting point) this partition to
40G and just grow the (still existing) xfs volume on it.
It's my dirty but safe way of doing Logical Volume Management :)
Simon
>
> With best regards,
>
> Marek Les
> Seznam.cz
>
> Note: If you don't want to discuss this theme in public, please don't
> hesitate to write me directly :-)
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