I'm seeing lots of these messages on the console of a system with a Dell
PERC H730 Mini controller:
2016-09-06T03:15:07.044518+00:00 headnode mr_sas: [ID 887724
kern.warning] WARNING: mr_sas0: mrsas_tbolt_reset_ppc:resetadapter bit
is set already check retry count 101
2016-09-06T03:15:08.044506+00:00 headnode mr_sas: [ID 270009
kern.warning] WARNING: mr_sas0: io_timeout_checker: FW Fault, calling
reset adapter
2016-09-06T03:15:08.044529+00:00 headnode mr_sas: [ID 643100
kern.notice] mr_sas0: io_timeout_checker: fw_outstanding 0x32
max_fw_cmds 0x39F
The messages appear when one KVM is under load and that machine becomes
unresponsive. I can still access (but not ssh onto) the GZ and other
KVMs on the same system.
A pool scrub ran through without error.
Once the messages start to appear, zpool status hangs.
fmdump -e gives a few of these:
Sep 06 01:40:59.1282 ereport.io.scsi.cmd.disk.dev.uderr
Power cycling the box calms things down until the KVM gets busy again.
Any clues?
Ian.
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