I'm having problems configuring a 2-disk RAID-1 array on an i686 machine. The machine has Redhat 6.2 installed but the kernel is built from the 2.2.14 source from ftp.kernel.org, with the ide patch applied to support the Promise PDC20246 ATA66 controller. The raid array is to be on two identical 17Gb partitions on two disks, each of which is a master on the ATA66 channels (the disks work fine on their own). The kernel has md support, as well as all raid levels, built-in. Here is the output of "mkraid" ---- mkraid /dev/md0 handling MD device /dev/md0 analyzing super-block disk 0: /dev/hde1, 16603146kB, raid superblock at 16603072kB disk 1: /dev/hdg1, 16603146kB, raid superblock at 16603072kB mkraid: aborted, see the syslog and /proc/mdstat for potential clues. ---- but there is nothing in the syslog to reflect the failure, and /proc/mdstat looks as it did before "mkraid" was run: ---- cat /proc/mdstat Personalities : [1 linear] [2 raid0] [3 raid1] [4 raid5] read_ahead not set md0 : inactive md1 : inactive md2 : inactive md3 : inactive ----- Running "strace" on the "mkraid" command shows the opening of /dev/md0 is failing with an EINVAL error, after which the abort immediately occurs. Here is the /etc/raidtab ---- cat /etc/raidtab # Sample raid-1 configuration raiddev /dev/md0 raid-level 1 nr-raid-disks 2 nr-spare-disks 0 chunk-size 4 device /dev/hde1 raid-disk 0 device /dev/hdg1 raid-disk 1 ---- Can anyone suggest what to try next? Thanks. Jeff -- Jeffrey E. Fookson, PhD Phone: (520) 621 3091 Senior Support Analyst [EMAIL PROTECTED] Steward Observatory University of Arizona
