On Dec 1, 2007 7:15 AM, Vincent Fox <[EMAIL PROTECTED]> wrote: > We will be using Cyrus to store mail on 2540 arrays. > > We have chosen to build 5-disk RAID-5 LUNs in 2 arrays which are both > connected to same host, and mirror and stripe the LUNs. So a ZFS RAID-10 set > composed of 4 LUNs. Multi-pathing also in use for redundancy.
Any reason why you are using a mirror of raid-5 lun's? I can understand that perhaps you want ZFS to be in control of rebuilding broken vdev's, if anything should go wrong ... but rebuilding RAID-5's seems a little over the top. How about running a ZFS mirror over RAID-0 luns? Then again, the downside is that you need intervention to fix a LUN after a disk goes boom! But you don't waste all that space :) PS: It would be nice to know what the LSI firmware does (after 15 years of evolution) to writes into the controller... it might have been better to buy JOBD's ... I see Sun will be releasing some soon (rumour?) _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
