On Thu, Jul 17, 2003 at 11:55:56AM -0500, Raymond Norton wrote: > We have a MB with a fastrack raid controller that my redhat install > could not pick up, so we added a 3ware card, and it worked perfect. > Just for kicks I enabled the fastrack controller after the install and > was able to mirror my apps drive. On boot up the mirrored drives show > up as hde, and hdg. What would be the proper fstab syntax to mount > this mirror? Ahh, scary. The promise controller is definitely supported by the newer kernels, but you'll want to make sure you don't have to boot off the disks. You will never get Lilo or GRUB to see the mirror device as bootable. I'm assuming that you're not using the Promise-supplied controllers, otherwise you wouldn't see the IDE devices at all; they would be presented as a single SCSI drive. What you're probably seeing is the built in ATARAID support in the newer kernels (>= 2.4.18). The driver does work, as I'm told, but I'd be cautious and only use data that is easy to recover in case the mirror itself fails. The device you want is /dev/ataraid/d0[p][1-*], where * is a wildcard. The "p" represents the partitions. bash# fdisk /dev/ataraid/d0 # partition out as appropriate I would seriously consider using a journaling filesystem on a mirror array, simply to improve write performance. bash# mkfs.ext3 /dev/ataraid/d0p1 bash# mount -t ext3 /dev/ataraid/d0p1 /mirror0 Good luck! P.S. The O'Reilly book on Linux RAID is an excellent source of information! -- Chad Walstrom <chewie at wookimus.net> http://www.wookimus.net/ assert(expired(knowledge)); /* core dump */ -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 240 bytes Desc: not available Url : http://shadowknight.real-time.com/pipermail/tclug-list/attachments/20030717/88408bef/attachment.pgp