Re: Recomended FS
От | Jeff |
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Тема | Re: Recomended FS |
Дата | |
Msg-id | 20031020080934.2401ee02.threshar@torgo.978.org обсуждение исходный текст |
Ответ на | Re: Recomended FS (Nick Burrett <nick@dsvr.net>) |
Ответы |
Re: Recomended FS
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Список | pgsql-general |
On Mon, 20 Oct 2003 11:07:20 +0100 Nick Burrett <nick@dsvr.net> wrote: > From experience I have noticed that IDE drives that initially perform > > at 30Mbyte/sec dropped to around 10Mbyte/sec after a year or so. > Yes. This is very true - a good test I like to show of IDE falling apart is to start up one client and show it go very fast. Then start up 20 and see what happens :) Also - you can easily have many, many more scsi devices (and external scsi devices) than IDE. More platters / disks == faster IO. > > > > IDE Hard Disk 40Gb 7200RPM = 133Mbs = 50UKP > > SCSI Hard Disk 36Gb 10000RPM = 160Mbs = 110UKP > If you don't mind refurb disks that still have a warranty, check out ebay. Friday I won a lot of 10 18GB disks for $96 + $27 insured shipping. But yeah, new scsi is quite expensive, but it can be worth it... IMHO scsi is to be used in a raid, not alone. No one disk can saturate the bw offered. (both ide and scsi). -- Jeff Trout <jeff@jefftrout.com> http://www.jefftrout.com/ http://www.stuarthamm.net/
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