Hi Hubert,
hubert depesz lubaczewski schrieb:
hi
i'm waiting for new server to arrive.
for the server i will get hp msa1000, with 14 discs (72g, 15000 rpm).
what kind of partitioning you suggest, to get maximum performance?
for system things i will have separate discs, so whole array is only for
postgresql.
data processing is oltp, but with large amounts of write operations.
any hints?
should i go with 3 partitions, or just 1? or 2?
You should configure your discs to RAID 10 volumes.
You should set up a separate volume for WAL.
A volume for an additional table space may also useful.
In your case I would do 2 partitions:
1. RAID 10 with 8 discs for general data
2. RAID 10 with 4 discs for WAL
(two disk as spare)
You may split the first volume in two volumes for a second table space
if you Server doesn't have enough RAM and you have a high disk read I/O.
Cheers
Sven.
