Yes performance will suffer, but it's a bit difficult to say by how much. Both pool transaction group writes and zil writes are spread across all devices. It depends on what applications you will run as to how much use is made of the zil. Maybe you should experiment and see if performance is good enough.
Neil. Tim Spriggs wrote: > I'm far from an expert but my understanding is that the zil is spread > across the whole pool by default so in theory the one drive could slow > everything down. I don't know what it would mean in this respect to keep > the PATA drive as a hot spare though. > > -Tim > > Christopher Gibbs wrote: >> Anyone? >> >> On 9/14/07, Christopher Gibbs <[EMAIL PROTECTED]> wrote: >> >>> I suspect it's probably not a good idea but I was wondering if someone >>> could clarify the details. >>> >>> I have 4 250G SATA(150) disks and 1 250G PATA(133) disk. Would it >>> cause problems if I created a raidz1 pool across all 5 drives? >>> >>> I know the PATA drive is slower so would it slow the access across the >>> whole pool or just when accessing that disk? >>> >>> Thanks for your input. >>> >>> - Chris >>> >>> >> >> > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
