Dynamic volume recovery fail.
i have new system boot drive , 2 drives want use data. on 2 drives setup mirrored volume , spanned volume. wanted test robustness of ldm in windows (better when there's actual data want safe).
i pulled 1 of disks , rebooted (simulating cable failure). mirrored volume came "failed redundancy", spanned volume came failed, , "missing" disk shown, expected.
shut down, reattach second drive. disk2 called "foreign" , "missing" drive still shown. missing drive foreign drive! "reactivate volume" fails "the plex missing" message. same error "reactivate disk" on missing disk. "import foreign disk" shows "foreign disk group (1 of 1 disks) -- wrong should 1 of 2. sees volume info proceeding gives warning dialog "some of volumes importing lose data because have not moved disks system". ahh -- isn't data safety hoping for!!
i downloaded ldmdump (http://technet.microsoft.com/en-us/sysinternals/bb897413.aspx). , looks if windows has changed disk group id of disk remained:
disk 1 "private head" relevant data:
disk id : ab2e4dc7-e61d-11de-aad5-00241dd53e77
host id : 1b77da20-c717-11d0-a5be-00a0c91db73c
disk group id : 71af879b-e81a-11de-b75f-00241dd53e77
disk group name : kurtshtpc-dg0
disk 1 "vblk" disk data:
0x000011: [00000c] <disk>
name : disk1
object id : 0x0002
disk id : ab2e4dc7-e61d-11de-aad5-00241dd53e77
0x000012: [00000d] <disk>
name : disk2
object id : 0x0003
disk id : ab2e4dca-e61d-11de-aad5-00241dd53e77
disk 2 (the 1 pulled, "foreign"):
disk id : ab2e4dca-e61d-11de-aad5-00241dd53e77
host id : 1b77da20-c717-11d0-a5be-00a0c91db73c
disk group id : ab2e4dc6-e61d-11de-aad5-00241dd53e77
disk group name : kurtshtpc-dg0
so online disk1 knows it's disk2 has same id "foreign" disk. disk group ids different though. did windows change first disk's disk group id when thought disk2 gone forever? there way write disk 2's ldm data match disk1's group id?? i'm guessing create other problems...
not impressed robustness...
thanks help!
-kurt
replying myself googling benefit:
i went ahead "import foreign disk" despite scary message. spanned volume came right online, no problem. mirrored volume came online 2 separate simple volumes , second given new drive letter. deleted new simple volume intending mirror first in new empty space. clicked create spanned volume mistake. think if had clicked create mirrored volume instead have been normal.
Windows Server > Windows Server General Forum
Comments
Post a Comment