It's created when the data is written to both drives. This is standard stuff, very well proven: try googling 'self healing zfs'.
- Luke Msg is shrt cuz m on ma treo -----Original Message----- From: Michael Stone [mailto:[EMAIL PROTECTED] Sent: Wednesday, May 30, 2007 11:11 AM Eastern Standard Time To: pgsql-performance@postgresql.org Subject: Re: [PERFORM] setting up raid10 with more than 4 drives On Wed, May 30, 2007 at 10:36:48AM -0400, Luke Lonergan wrote: >> I don't see how that's better at all; in fact, it reduces to >> exactly the same problem: given two pieces of data which >> disagree, which is right? > >The one that matches the checksum. And you know the checksum is good, how? Mike Stone ---------------------------(end of broadcast)--------------------------- TIP 4: Have you searched our list archives? http://archives.postgresql.org
