Sorry, I did a mistake when testing with RHEL6.1....the multipath daemon
was stopped.
So, also with RHEL6.1. I've noticed path failures. I'm trying to do some
more testing - maybe it's related to
I/O workload. For my regular tests I'm attaching 10 SCSI LUns to the
host system via two pathes.
On each multipath device 4 partitions will be created. Five multipath
devices are going to be used for filesystem I/O, the remaining five for
block I/O.
Currently I have just fs-I/O started and so far - 1h - no path failures
occured. I will start block I/O later....
My guess why it could be device-mapper related is based on SLES11SP1
bugzilla 62249 multipath-tools: multipath device path failure without
error injection.
Am 14.06.2012 23:19, schrieb Mike Snitzer:
On Thu, Jun 14 2012 at 3:15pm -0400,
Christian May<cmay@xxxxxxxxxxxxxxxxxx> wrote:
I couldn't recreate the path failures on the exact same test setup
with RHEL6.1.
Something must have been changed in the device-mapper package!?
It is good to know 6.1 works and 6.2 doesn't for you. But I'm not
understanding why you're thinking it is a device-mapper-multipath
issue (not kernel issue).
You could do a couple things:
1) run the RHEL6.2 kernel on a RHEL6.1 install
2) install RHEL6.1 device-mapper-multipath package on RHEL6.2 install
If both work then it implicates the RHEL6.2 device-mapper-multipath
package.
But all being said, please just file a BZ at bugzilla.redhat.com
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