Re: postgresql and xfs filesystrem

On Montag 26 Januar 2009 Ezra Taylor wrote:
> What about XFS performance on databases larger than 1 TB.  We
> are successful running postgres on zfs with x4500 but I'm interested
>  using commodity hardware.

See http://en.wikipedia.org/wiki/Xfs#Allocation_groups

XFS was designed for big iron, where "big iron" from that time is
commodity servers of today (4+ cores, 8GB+ RAM, RAID with lots of fast
disks). During mkfs, you can decide how many allocation groups you want,
and by the size of your partition, you decide how big a single AG is.
And if your database spans lots of AGs, high parallelism can take place
if it's well done.

mfg zmi
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