Re: Recomended FS

Mark Kirkwood <markir@paradise.net.nz>

From: Mark Kirkwood <markir@paradise.net.nz>
To: Steve Crawford <scrawford@pinpointresearch.com>, pgsql-general@postgresql.org
Date: 2003-10-21T05:56:52Z
Lists: pgsql-general
Some sort of ATA Raid is probably worth considering -

e.g. I am experimenting with a system using 2 ATA-66 Seagates + 1 
Promise TX2000

The disks themselves give fairly poor performance when attached to the 
std IDE channels :

sequential write 15Mb/s
sequential read 20Mb/s

But attached to the Promise card using RAID 0 do considerably better:

sequential write 52Mb/s
sequential read 52MB/s

Now you would probably not use RAID 0 for a "real" system (unless you 
had good backups), but the difference is interesting

Note that even including the card, this is a very cheap setup.

(I have not gotten around to testing random read and writes, but if 
anybody is interested I can test this and supply figures)

regards

Mark


Steve Crawford wrote:

>  
>
>Talk about timing...this article posted today seems quite apropos 
>(spoiler: SCSI beats IDE):
>
>http://hardware.devchannel.org/hardwarechannel/03/10/20/1953249.shtml?tid=20&tid=38&tid=49
>
>
>  
>