Quoting Cian Davis <davisc at skynet.ie>:
> Online expansion would be *really* nice. The idea is that I'd like to but
> a RAID 5 array now with about a terabyte/terabyte and a half but the group is
> likely to expand and people are likely to use this to store all sorts
> of crap. All the disks will be 1 array, which will be mounted as /home. If
> in a years time we're running out of space and can chuck an extra
> disk or 2 in,
> we could reduce the cost now by not buying disks we don't need.
You do realise than there is a LUN limit in Linux of 2TB? But you can
get around
this by implementing LVM2.
So a few RAID5 arrays, using LVM2 to create virtual luns, and your
filesystem du
jour on top should suffice. I would avoid having loads of disks in a single
array, it kills performance. better to seperate them into seperate
channels and
then LVM can join them together.
> The array will be connected to a server running Sarge, which is master node
> for a cluster of 9 machines. I will be NFS mounting /home to the
> other 8 servers
> and will also use the array so that people can rsync their work to it for
> backup.
Yeah, why not.
> Regards,
> Cian
regards
Conor.
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