Hallo everybody!

Short info on architecture in use:

I have a setup of two HP DL380 with Smart Array 5i Controller for internal 
Disks (RAID 1 for rootdisks, on mashine wit additional RAID 5 for local 
database). Both Machines are attached to a HP MSA 500 Storage device via Smart 
Array 532 Controller. The machines form a high availability cluster for an 
Oracle database. Kernel in Use is 2.6.10-gentoo-r6. This construct is suggestet 
by HP for use in HA clusters. The device has one singel lun wich is used as 
LVM2 device via device-mapper. FS ist ext2.

For a few days now write access to the MSA 500 stalls. Afterwards every access 
to that device stalls too. The machine refises to sync and will not reboot 
without pressing tho power button.

Please help!
_any_ hint is welcome! Including input on working environments with similiar 
setup or similiar problems. Any hint on possible problems with the used kernel 
or host bus adapters?

Kind regards,

Matthias Witschel

PS: Here are the relevant messages from /var/log/messages:
(earlier tests included EXT2 error messages ahead of the timeout, this didn't 
happen after fsck on the device)

Feb  9 16:56:16 telkas1 cciss: cmd f7d80000 timedout
Feb  9 16:56:16 telkas1 Buffer I/O error on device dm-6, logical block 60998
Feb  9 16:56:16 telkas1 lost page write due to I/O error on dm-6
Feb  9 16:56:16 telkas1 cciss: cmd f7d80248 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d80490 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d806d8 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d80920 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d80b68 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d80db0 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d80ff8 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d81240 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d81488 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d816d0 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d81918 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d81b60 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d81da8 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d81ff0 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d82238 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d82480 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d826c8 timedout
Feb  9 16:56:16 telkas1 Buffer I/O error on device dm-6, logical block 62023
Feb  9 16:56:16 telkas1 lost page write due to I/O error on dm-6
Feb  9 16:56:16 telkas1 cciss: cmd f7d82910 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d82b58 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d82da0 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d82fe8 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d83230 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d83478 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d836c0 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d83908 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d83b50 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d83d98 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d83fe0 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d84228 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d84470 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d846b8 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d84900 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d84b48 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d84d90 timedout
Feb  9 16:56:16 telkas1 Buffer I/O error on device dm-6, logical block 63048
Feb  9 16:56:16 telkas1 lost page write due to I/O error on dm-6
Feb  9 16:56:16 telkas1 cciss: cmd f7d84fd8 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d85220 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d85468 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d856b0 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d858f8 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d85b40 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d85d88 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d85fd0 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d86218 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d86460 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d866a8 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d868f0 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d86b38 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d86d80 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d86fc8 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d87210 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d87458 timedout
Feb  9 16:56:16 telkas1 Buffer I/O error on device dm-6, logical block 64073
Feb  9 16:56:16 telkas1 lost page write due to I/O error on dm-6
Feb  9 16:56:16 telkas1 cciss: cmd f7d876a0 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d878e8 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d87b30 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d87d78 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d87fc0 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d88208 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d88450 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d88698 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d888e0 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d88b28 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d88d70 timedout
Feb  9 16:56:16 telkas1 cciss: cmd f7d88fb8 timedout

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