Re: setting up raid10 with more than 4 drives

["Luke Lonergan" <llonergan(at)greenplum(dot)com>]

Hi Peter,

On 5/30/07 12:29 AM, "Peter Childs" <peterachilds(at)gmail(dot)com> wrote:

> Good point, also if you had Raid 1 with 3 drives with some bit errors at least
> you can take a vote on whats right. Where as if you only have 2 and they
> disagree how do you know which is right other than pick one and hope... But
> whatever it will be slower to keep in sync on a heavy write system.

Much better to get a RAID system that checksums blocks so that "good" is
known.  Solaris ZFS does that, as do high end systems from EMC and HDS.

- Luke