Matthew Tehonica wrote:
After about 5 minutes, I try to cat /proc/mdstat again and it just freezes and sits there with the cursor flashing. At this point, I can do anything with mdadm, not even like a --detail on another array on the system. Just sits there and flashes. I've tried with a bunch of different disks and same thing all the time. Here is a section from my kern.log.
Dec 10 19:01:07 ghostrider kernel: [ 1338.011320] /build/buildd/linux-2.6.31/drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
Dec 10 19:01:07 ghostrider kernel: [ 1338.011330] /build/buildd/linux-2.6.31/drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
Dec 10 19:01:07 ghostrider kernel: [ 1338.011343] /build/buildd/linux-2.6.31/drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
Dec 10 19:01:07 ghostrider kernel: [ 1338.011349] /build/buildd/linux-2.6.31/drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
Dec 10 19:01:07 ghostrider kernel: [ 1338.011443] /build/buildd/linux-2.6.31/drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
Dec 10 19:01:07 ghostrider kernel: [ 1338.011449] /build/buildd/linux-2.6.31/drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
Dec 10 19:01:07 ghostrider kernel: [ 1338.011461] end_request: I/O error, dev sdf, sector 0
Dec 10 19:01:07 ghostrider kernel: [ 1338.011472] md: super_written gets error=-5, uptodate=0
Looks like the drives are being dropped by the controller.
I believe there was some recent discussion here about mv_sas, md and
failures under heavy I/O load.
Regards,
Richard
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