[dm-devel] Trouble with registering a raid volume with dmeventd

[Sandra Escandor]

I notice that when I initially have the raid0+1 volumes registered with
dm_dso_reg_tool, and then simulate a disk failure by pulling a member
disk during an i/o operation, then reconnecting the disk, and then
rebooting, I see that the output of dmsetup status shows that all of the
member disks are active for each raid volume. 

 

When I check out the output of dm_dso_reg_tool -m to show the list of
monitored devices, it shows that the raid volumes are not registered
with dmeventd. That's fine, so I try registering all of the raid
volumes, but only two out of the three volumes only ever get registered
with dmeventd. Whenever I register the third volume, all three volumes
become listed as not currently registered with dmeventd.

 

What step am I missing?

 

Thanks for clarifying,

Sandra

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