Hello!
I have some Seagate Barracuda 7200.11 ST31500341AS 1.5TB drives. They use the firmware SD17.
They time out at the flush write cache and sometimes on the identify command.
I know that sounds suspicious so I wrote to seagate but they told me my drives are ok. (Although I dont think so.)
This drive+fw is blacklisted in the kernel, but there is no firmware upgrade for these drives. (Only very few serial numbers are able to upgrade.)
Now I want to know after what period of the time the kernel timeouts at these commands!? And if this timeout can be increased (manually, small patch for the kernel) and the min/max/avg time could somehow be messured. Every timeout kicks the drives off the raid, so I disabled the write cache (hdparm -W0 /dev/sdx) but thats no solution, just a bad workaround.
Its a amd64 system with the 2.6.29.4 on an AM3 board with AMDs 790GX + SB750 Chipsets running in ahci mode.
Thanks for your time and support!
Markus
PS: Please CC me!