On 03 September, 2008 - Aaron Blew sent me these 2,5K bytes: > On Wed, Sep 3, 2008 at 1:48 PM, Miles Nordin <[EMAIL PROTECTED]> wrote: > > > I've never heard of a battery that's used for anything but RAID > > features. It's an interesting question, if you use the controller in > > ``JBOD mode'' will it use the write cache or not? I would guess not, > > but it might. And if it doesn't, can you force it, even by doing > > sneaky things like making 2-disk mirrors where 1 disk happens to be > > missing thus wasting half the ports you bought, but turning on the > > damned write cache? I don't know. > > > > The X4150 SAS RAID controllers will use the on-board battery backed cache > even when disks are presented as individual LUNs. You can also globally > enable/disable the disk write caches.
We're using an Infortrend SATA/SCSI disk array with individual LUNs, but it still uses the disk cache. /Tomas -- Tomas Ögren, [EMAIL PROTECTED], http://www.acc.umu.se/~stric/ |- Student at Computing Science, University of Umeå `- Sysadmin at {cs,acc}.umu.se _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
