[DRBD-user] drbd failure after Raw Backup/Recovery

Stefan Novak stefan.novak at bnet.at
Tue Jun 17 16:06:45 CEST 2008


Hello!
 
I've got a drbd setup with 2 drbd partitions in an active/active
failover Cluster. 
After measuring the performance of the disks we found out that the
Adaptec 2120s Controller has a very poor Performance. (only 20Mb/s
write)
 
I decide to change the SCSI-Controller to an LSI 320-2x SCSI Controller
which has about 80 MB/s write Performance. (My Setup is with 6x 147Gb
SCSI 15k Disks in Raid 10)
Now i have a third Server with exact the same Hardware, but the new
Contoller built in. I've made a Raw Offline Backup from the Disks (with
Netvault Backup) and want to restore the data on the new Server with the
new Controller.
Then i changed the mount points from /dev/iso/hda1 to /dev/sda1 for
example to fit the new hardware.

But now I've got a problem with drbd:

Jun 10 10:22:09 po-b kernel: drbd: initialised. Version: 0.7.16
(api:77/proto:74) 
Jun 10 10:22:09 po-b kernel: drbd: SVN Revision: 2066 build by
root at po-b, 2006-05-04 19:43:22 
Jun 10 10:22:09 po-b kernel: drbd: registered as block device  major 147

Jun 10 10:22:09 po-b kernel: drbd0: resync bitmap: bits=96547996
words=1508563 
Jun 10 10:22:09 po-b kernel: drbd0: size = 368 GB (386191984 KB) 
Jun 10 10:22:09 po-b kernel: klogd 1.4.1, ---------- state change
---------- 
Jun 10 10:22:09 po-b kernel: No module symbols loaded - kernel modules
not enabled.
Jun 10 10:22:12 po-b kernel: drbd0: 0 KB marked out-of-sync by on disk
bit-map.
Jun 10 10:22:12 po-b kernel: drbd0: drbd_al_read_log: (!rv) in
/usr/src/modules/drbd/drbd/drbd_actlog.c:451
Jun 10 10:22:12 po-b last message repeated 24 times 
Jun 10 10:22:12 po-b kernel: drbd0: Found 6 transactions (324 active
extents) in activity log.
Jun 10 10:22:12 po-b kernel: drbd0: drbdsetup [6276]: cstate
Unconfigured --> StandAlone 
Jun 10 10:22:12 po-b kernel: drbd1: drbd_md_sync_page_io(,3657648,READ)
failed!
Jun 10 10:22:12 po-b kernel: drbd1: drbd_md_read: (!
drbd_md_sync_page_io(mdev,sector,READ)) in
/usr/src/modules/drbd/drbd/drbd_main.c:2085
Jun 10 10:22:12 po-b kernel: drbd1: Creating state block 
Jun 10 10:22:12 po-b kernel: drbd1: drbd_md_sync_page_io(,3657648,WRITE)
failed!
Jun 10 10:22:12 po-b kernel: drbd1: meta data update failed!
Jun 10 10:22:12 po-b kernel: drbd1: resync bitmap: bits=457206
words=7144 
Jun 10 10:22:12 po-b kernel: drbd1: size = 1785 MB (1828824 KB) 
Jun 10 10:22:12 po-b kernel: drbd1: drbd_md_sync_page_io(,3657720,WRITE)
failed!
Jun 10 10:22:12 po-b kernel: drbd1: IO ERROR writing bitmap sector 0
(meta-disk sector 3657720) 
Jun 10 10:22:12 po-b kernel: drbd1: short sent ReportParams size=80
sent=-1000 
Jun 10 10:22:12 po-b kernel: drbd1: Notified peer that my disk is
broken.

I think that something with the raw backup and restore process failes.
But i dont know another way to perform an upgrade(test-upgrade) of the
SCSI Controller. Is there another way or i am on the right one? :)

thx S.Novak



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