Re: Some Performance Advice Needed
От | Joshua D. Drake |
---|---|
Тема | Re: Some Performance Advice Needed |
Дата | |
Msg-id | 41CB3830.2090201@commandprompt.com обсуждение исходный текст |
Ответ на | Re: Some Performance Advice Needed (Jeff <threshar@torgo.978.org>) |
Ответы |
Re: Some Performance Advice Needed
Re: Some Performance Advice Needed |
Список | pgsql-performance |
Jeff wrote: > > On Dec 23, 2004, at 9:27 AM, Alex wrote: > > >> Running hdparm reported >> A) 920mb/s (SCSI 10k) >> B) 270mb/s (SCSI 10k) >> C) 1750mb/s (IDE 7.2k) > > > > IDE disks lie about write completion (This can be disabled on some > drives) whereas SCSI drives wait for the data to actually be written > before they report success. It is quite > easy to corrupt a PG (Or most any db really) on an IDE drive. Check > the archives for more info. Do we have any real info on this? Specifically which drives? Is SATA the same way? What about SATA-II? I am not saying it isn't true (I know it is) but this is a blanket statement that may or may not be true with newer tech. Sincerely, Joshua D. Drake > > -- > Jeff Trout <jeff@jefftrout.com> > http://www.jefftrout.com/ > http://www.stuarthamm.net/ > > > ---------------------------(end of broadcast)--------------------------- > TIP 4: Don't 'kill -9' the postmaster -- Command Prompt, Inc., home of Mammoth PostgreSQL - S/ODBC and S/JDBC Postgresql support, programming shared hosting and dedicated hosting. +1-503-667-4564 - jd@commandprompt.com - http://www.commandprompt.com PostgreSQL Replicator -- production quality replication for PostgreSQL
Вложения
В списке pgsql-performance по дате отправления: