Re: SCSI vs. IDE performance test
От | Rick Gigger |
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Тема | Re: SCSI vs. IDE performance test |
Дата | |
Msg-id | 00bc01c39cd8$55d88cb0$0700a8c0@trogdor обсуждение исходный текст |
Ответ на | Re: SCSI vs. IDE performance test (Bruce Momjian <pgman@candle.pha.pa.us>) |
Ответы |
Re: SCSI vs. IDE performance test
Re: SCSI vs. IDE performance test |
Список | pgsql-general |
It seems to me file system journaling should fix the whole problem by giving you a record of what was actually commited to disk and what was not. I must not understand journaling correctly. Can anyone explain to me how journaling works. ----- Original Message ----- From: "Bruce Momjian" <pgman@candle.pha.pa.us> To: <mikeb@netnation.com> Cc: "Stephen" <jleelim@xxxxxx.com>; <pgsql-general@postgresql.org> Sent: Monday, October 27, 2003 12:14 PM Subject: Re: [GENERAL] SCSI vs. IDE performance test > Mike Benoit wrote: > > I just ran some benchmarks against a 10K SCSI drive and 7200 RPM IDE > > drive here: > > > > http://fsbench.netnation.com/ > > > > The results vary quite a bit, and it seems the file system you use > > can make a huge difference. > > > > SCSI is obviously faster, but a 20% performance gain for 5x the cost is > > only worth it for a very small percentage of people, I would think. > > Did you turn off the IDE write cache? If not, the SCSI drive is > reliable in case of OS failure, while the IDE is not. > > -- > Bruce Momjian | http://candle.pha.pa.us > pgman@candle.pha.pa.us | (610) 359-1001 > + If your life is a hard drive, | 13 Roberts Road > + Christ can be your backup. | Newtown Square, Pennsylvania 19073 > > ---------------------------(end of broadcast)--------------------------- > TIP 6: Have you searched our list archives? > > http://archives.postgresql.org >
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