hi guys, i was running a resync in a non-normal hardware instalation it's a server with 4 disks, they are in a raid hardware controller (perci from dell) disk 1-2 are raid1 and linux know it about /dev/sda disk 3-4 are raid1 and linux know it about /dev/sdb well i add more 4 disks disk 5-6 raid1 with /dev/sdc disk 7-8 raid1 with /dev/sdd nice... well /dev/sda and /dev/sdb have same partitions (/dev/sda1, 2 3 4) and have some md devices in this partitions.. /dev/md0 = /dev/sda1 /dev/sdb1 /dev/md1 = /dev/sda2 /dev/sdb2 /dev/md2 = /dev/sda3 /dev/sdb3 all raid 1 too i create same partitions on /dev/sdc, /dev/sdd and add they to md raid1 /dev/md0 = /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/md1 = /dev/sda2 /dev/sdb2 /dev/sdc2 /dev/sdd2 /dev/md2 = /dev/sda3 /dev/sdb3 /dev/sdc3 /dev/sdd3 nice.. mdadm start resync... the point is... /dev/sda1 start copies to /dev/sdc1 and /dev/sdd1, i checked this with iostat -d 1 -k, and server is idle, only mdadm and raid is running, /dev/sda1 have reads and /dev/sdc1 and /dev/sdd1 have writes nice.. the problem is... /dev/sdc2 and /dev/sdd2 didn't start sync while /dev/md0 is running, since they share the same devices (/dev/md0 => /dev/sda1, /dev/md1 => /dev/sda2) could i force a sync in /dev/md1?? since /dev/sda is a raid1 hardware, it can handle two disks without performace problems... it have 2 heads, in others words the mdadm disk balance isn't perfect here to this solution, but works... the problem is sync not running, if i could force it every things could be allright i must check kernel version, it's about 2.6.3x, 1 year old +- well that's it, any ideas? *** sorry if i send two emails, the email was configured to HTML/RICH TEXT text -- Roberto Spadim Spadim Technology / SPAEmpresarial -- 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