Re: Hardware Recommendations
От | Justin Clift |
---|---|
Тема | Re: Hardware Recommendations |
Дата | |
Msg-id | 3B603143.C6F3B670@postgresql.org обсуждение исходный текст |
Ответ на | Hardware Recommendations ("Gregory Wood" <gregw@com-stock.com>) |
Список | pgsql-general |
Hi all, One of my personal rules is that whenever someone says they're going to get a 10K RPM SCSI drive, I always tell them to go 2 x 10K RPM SCSI drives (half the size each) and do RAID 0. Or, preferably go 3 x and do RAID 5. My point is that 10K RPM drives are nice, but more is better (and effective) with SCSI. :) Regards and best wishes, Justin Clift Steve Wolfe wrote: > > > I respectfully disagree with Steve's "disk speed isn't terribly > > important" -- it can be (and is totally dependent on what you're doing) > and > > since you have the on-board U160 with all the dual Athlon boards I've > seen, > > you might as well take full advantage of it.. That and you know Seagate > has > > those new 15,000 RPM U160 drives out *evil grin*.. > > You can't take advantage of U160 without at *least* three disks. ; ) > > If you have enough RAM for the cache, and you're not using fsync(), then > an insert/update doesn't actually hit the disk, it just returns. The > kernel can update the disk later at it's leisure. I'm not sorry that I > spent all of the money for the large array that I use, it provides > redundancy that lets me sleep easier - but I can guarantee that I'm not > using 1/100th of it's potential as far as write capabilities. > > steve > > ---------------------------(end of broadcast)--------------------------- > TIP 5: Have you checked our extensive FAQ? > > http://www.postgresql.org/users-lounge/docs/faq.html -- "My grandfather once told me that there are two kinds of people: those who work and those who take the credit. He told me to try to be in the first group; there was less competition there." - Indira Gandhi
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