I just combined two machines into one: Machine#1 /dev/md4 - sda1,sdb1,sdc1,sdd1,sde1,sdf1,sdg1 Machine#2 /dev/md3 - sda1,sdb1,sdc1 I moved the disks from Mach#2 to Mach#1 and was unable to start /dev/md4 (md3 worked just fine) The disks for md4 had moved to sdd1,sde1,sdf1,sdg1,sdh1,sdj1,sdi1 The log shows: May 5 07:36:22 yeti kernel: md4: max total readahead window set to 6144k May 5 07:36:22 yeti kernel: md4: 6 data-disks, max readahead per data-disk: 1024k May 5 07:36:22 yeti kernel: raid5: device sdg1 operational as raid disk 3 May 5 07:36:22 yeti kernel: raid5: device sdf1 operational as raid disk 2 May 5 07:36:22 yeti kernel: raid5: device sde1 operational as raid disk 1 May 5 07:36:22 yeti kernel: raid5: device sdd1 operational as raid disk 0 So...the system didn't recognize that sdg1 was now sdi1. All the disks are set as "Linux raid". I ended up doing a "mkraid" on the set and was able to recover all the data without reformatting (thanks for that!) Here's what it looked like afterwards... May 5 08:13:14 yeti kernel: raid5: spare disk sdj1 May 5 08:13:14 yeti kernel: raid5: device sdi1 operational as raid disk 5 May 5 08:13:14 yeti kernel: raid5: device sdh1 operational as raid disk 4 May 5 08:13:14 yeti kernel: raid5: device sdg1 operational as raid disk 3 May 5 08:13:14 yeti kernel: raid5: device sdf1 operational as raid disk 2 May 5 08:13:14 yeti kernel: raid5: device sde1 operational as raid disk 1 May 5 08:13:14 yeti kernel: raid5: device sdd1 operational as raid disk 0 But...did I miss something or is this a bug? ________________________________________ Michael D. Black Principal Engineer [EMAIL PROTECTED] 321-676-2923,x203 http://www.csihq.com Computer Science Innovations http://www.csihq.com/~mike My home page FAX 321-676-2355 - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to [EMAIL PROTECTED]
