After I created a pair of two member RAID1 arrays and then added them as members to a RAID6 array, I am now getting messages similar to the following, complaining of "Wrong-level" issues. When I check the RAID6 array, however, it is clean and both RAID1 members are still there. When I check both RAID1 arrays, they show clean with no events. I am running a compare between all the data on this machine and its mirror (this is a backup machine). So far everything looks good. What does this imply? Is there something about which I should be worried? -----Original Message----- From: mdadm_monitor@xxxxxxxxxxx [mailto:mdadm_monitor@xxxxxxxxxxx] Sent: Thursday, June 09, 2011 8:04 AM To: leslie.rhorer@xxxxxxxxxxxxx; lrhorer@xxxxxxxxxxx Subject: Backup Server RAID Array Event Notification DeviceDisappeared /dev/md10 Wrong-Level <message ends> >From mdadm: Backup:~# mdadm -D /dev/md0 /dev/md0: Version : 1.2 Creation Time : Mon May 31 16:23:10 2010 Raid Level : raid6 Array Size : 14651371520 (13972.64 GiB 15003.00 GB) Used Dev Size : 1465137152 (1397.26 GiB 1500.30 GB) Raid Devices : 12 Total Devices : 12 Persistence : Superblock is persistent Update Time : Thu Jun 9 13:30:54 2011 State : active Active Devices : 12 Working Devices : 12 Failed Devices : 0 Spare Devices : 0 Layout : left-symmetric Chunk Size : 1024K Name : Backup:0 (local to host Backup) UUID : 431244d6:45d9635a:e88b3de5:92f30255 Events : 436289 Number Major Minor RaidDevice State 0 8 0 0 active sync /dev/sda 1 8 16 1 active sync /dev/sdb 2 8 32 2 active sync /dev/sdc 3 8 48 3 active sync /dev/sdd 4 8 64 4 active sync /dev/sde 5 8 80 5 active sync /dev/sdf 6 8 96 6 active sync /dev/sdg 7 8 112 7 active sync /dev/sdh 8 8 128 8 active sync /dev/sdi 10 8 144 9 active sync /dev/sdj 12 9 11 10 active sync /dev/md11 11 9 10 11 active sync /dev/md10 Backup:~# mdadm -D /dev/md10 /dev/md10: Version : 1.2 Creation Time : Wed Jun 8 00:08:16 2011 Raid Level : raid0 Array Size : 1953521664 (1863.02 GiB 2000.41 GB) Raid Devices : 2 Total Devices : 2 Persistence : Superblock is persistent Update Time : Wed Jun 8 00:08:16 2011 State : clean Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 Chunk Size : 1024K Name : Backup:10 (local to host Backup) UUID : fa1ed617:d80525c4:1df692e8:0116406d Events : 0 Number Major Minor RaidDevice State 0 8 192 0 active sync /dev/sdm 1 8 208 1 active sync /dev/sdn Backup:~# mdadm -D /dev/md11 /dev/md11: Version : 1.2 Creation Time : Wed Jun 8 00:08:38 2011 Raid Level : raid0 Array Size : 1953521664 (1863.02 GiB 2000.41 GB) Raid Devices : 2 Total Devices : 2 Persistence : Superblock is persistent Update Time : Wed Jun 8 00:08:38 2011 State : clean Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 Chunk Size : 1024K Name : Backup:11 (local to host Backup) UUID : 1ac704ee:8f501b33:4caee409:e384eeec Events : 0 Number Major Minor RaidDevice State 0 8 224 0 active sync /dev/sdo 1 8 240 1 active sync /dev/sdp -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
