Hi Mark,
if you create logical partitions you are likely to
get much poorer overall performance if you have a lot of read/write
tasks because the heads will need to move a lot more, and the OS
doesn't know the partitions are on the same physical drives.
I did some benchmarks measuring this with some of our old hardware
which has 30x1TB HDD's when the ext3/4 limit was 8TB and saw much
performance with the partitions mapping to independent RAID vols,
although in the end we used logical partitions to maximize the available
space.
cheers.
Alex
On Tue, 17 Jul 2012, Mark Slater wrote:
> Hi All,
>
> At Bham, we're just about to partition our new RAID array and were wondering
> what the best partitioning system is. At present, our existing arrays are
> divided into logical drives of 5-10TB but we were wondering if there's any
> benefit to this or should we just leave them as one large partition (30GB in
> our case)? My gut feeling was to keep things the same (10Gb partitions) as
> this *may* make any draining that is required in the future a bit easier.
> Though if this draining is done on a file basis I guess it doesn't :)
>
> Any comment/suggestions are welcome!
>
> Thanks,
>
> Mark
>
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