Hello,
I would like to know which is the best configuration to use 4 scsi drives with a pg 8.1 server.
Configuring them as a RAID10 set seems a good choice but now I´m figuring another configuration:
SCSI drive 1: operational system
SCSI drive 2: pg_xlog
SCSI drive 3: data
SCSI drive 4: index
SCSI drive 1: operational system
SCSI drive 2: pg_xlog
SCSI drive 3: data
SCSI drive 4: index
I know the difference between them when you analyze risks of loosing data but how about performance?
What should be better?
Obs.: Our system uses always an index for every access.. (enable_seqscan(false))
Thanks in advance!
Benkendorf
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