Hi all, I'm planning to built a md raid-5 with 6 IDE-disks, and I have somethings questions, wish that someone here can give me some advance. If I built a raid-5 like this: /dev/md0 (raid1 mirroring for /boot) : /dev/hda1, /dev/hdb1, /dev/hdc1, /dev/hdd1, /dev/hde1, /dev/hdf1 /dev/md1 (/dev/hdf2 being hot-spare disk): /dev/hda2 + /dev/hdb2 + /dev/hdc2 + /dev/hdd2 + /dev/hde2 + /dev/hdf2 1. If, one of the disk from hd(a-e) failed, will /dev/hdf auto re-built with contents of the failed disk? 2. If, one of the disk from hd(a-e) failed AND /dev/hdf is rebuilded with contents of failed disk, can I shut down the machine, unplug /dev/hdf, plug it back as /dev/hd(a-e), and assume I can boot the machine and mount /dev/md0 and /dev/md1 w/o problems? 3, If, /dev/hda dead, will there be any difficulty or is there any special things for me to recover the raid? 4. Any special advance for builting such a raid5 ? 5. I know SCSI is good and fast, but I can't really afford it (I need 6 x 250GB, or 12 x 146GB for SCSI!), any recommended IDE controller / chipset known to be happy with kernel 2.6.x? I don't need/want any hardware RAID solutions, since I always think that, if the card itself got some problems ..... I'll have a hard-time to get my data back. 6. Is there any up-to-date documentations for md raid5 for me to read from web? Thanks in advance, I read the maillist from the web so please CC my email if possible. Kyle - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html