Re: [PERFORM] Two hard drives --- what to do with them?

2007-02-25 Thread Peter Kovacs
A related question: Is it sufficient to disable write cache only on the disk where pg_xlog is located? Or should write cache be disabled on both disks? Thanks Peter On 2/25/07, Tom Lane [EMAIL PROTECTED] wrote: Carlos Moreno [EMAIL PROTECTED] writes: The question is: does PostgreSQL have

Re: [PERFORM] Two hard drives --- what to do with them?

2007-02-26 Thread Peter Kovacs
On 2/26/07, Jeff Davis [EMAIL PROTECTED] wrote: On Sun, 2007-02-25 at 23:11 +0100, Peter Kovacs wrote: A related question: Is it sufficient to disable write cache only on the disk where pg_xlog is located? Or should write cache be disabled on both disks? When PostgreSQL does a checkpoint

Re: [PERFORM] Two hard drives --- what to do with them?

2007-02-27 Thread Peter Kovacs
On 2/27/07, Shane Ambler [EMAIL PROTECTED] wrote: Jeff Davis wrote: Sorry for for not being familar with storage techonologies... Does battery here mean battery in the common sense of the word - some kind of independent power supply? Shouldn't the disk itself be backed by a battery? As

Re: [PERFORM] SCSI vs SATA

2007-04-04 Thread Peter Kovacs
This may be a silly question but: will not 3 times as many disk drives mean 3 times higher probability for disk failure? Also rumor has it that SATA drives are more prone to fail than SCSI drivers. More failures will result, in turn, in more administration costs. Thanks Peter On 4/4/07, [EMAIL

Re: [PERFORM] SCSI vs SATA

2007-04-04 Thread Peter Kovacs
PROTECTED] wrote: Andreas Kostyrka escribió: * Peter Kovacs [EMAIL PROTECTED] [070404 14:40]: This may be a silly question but: will not 3 times as many disk drives mean 3 times higher probability for disk failure? Also rumor has it that SATA drives are more prone to fail than SCSI drivers. More