Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hi all, I've come across an issue on a clustered set up that I haven't been able to find a resolution for. If anyone could shed some light on it, I'd very much appreciate it. *SETUP* Two hardware nodes, running a DRBD/LVM/Xen stack (in that order). One node is using a RAID-1 3ware controller with two Western Digital Blue 1.0TB drives, the other RAID-5 3ware controller with three WD Black RE 500GB drives. Everything else is identical. (I'm attempting to sync the data to the RAID-5 node so I can failover to that and replace RAID-1 on the other node--given that the performance with DRBD on the latter is awful.) Controller information: node1 3w-9xxx: scsi0: Found a 3ware 9000 Storage Controller at 0xda100000, IRQ: 16. 3w-9xxx: scsi0: Firmware FE9X 4.06.00.004, BIOS BE9X 4.05.00.015, Ports: 4. node2 3w-9xxx: scsi0: Found a 3ware 9000 Storage Controller at 0xda100000, IRQ: 16. 3w-9xxx: scsi0: Firmware FE9X 4.06.00.004, BIOS BE9X 4.05.00.015, Ports: 2. Software Version information for both nodes are identical: Distro: Debian 5.0.3 Kernel: Linux 2.6.26-2-xen-amd64 #1 SMP Thu Aug 20 00:36:34 UTC 2009 x86_64 GNU/Linux drbdadm Version: Version: 8.0.14 (api:86) Xen Version: 3.0.3 *PROBLEM* The sync will run along without any issues for a few hours, after which /proc/drbd reports that it has stalled. The Xen instance running on top stops responding entirely. There are a number of stack traces in the system log which I have attached to the email. Has anyone come across something like this before? Updating DRBD is a bit iffy, as our client is very downtime-adverse given that he's paying for a high-availability solution. Don't know if that can be done without reinitializing both resources. Thanks in advance for any help! Regards, Tom Pawlowski -------------- next part -------------- A non-text attachment was scrubbed... Name: node2.drbd.crash.20090928.log Type: text/x-log Size: 25836 bytes Desc: not available URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20090928/cdf4fd66/attachment.bin>