Interresting thing : if I do not mount any filesystem (except the
systems one) I get no freezes.
A the moment, there's a resync on the soft-raid array (5 disks) and a
extents move between LVM PV (soft-raid array => hardware-based array),
making amounts of I/O on all that bunch of disks and nothing freezes.
I'm pretty sure if I mount one of these LV and start IOing upon it, I'll
get a freeze. (but I have to let the pvmove finish as I want to free
some disks to plug them in another backup NAS).
vmstat:
procs -----------memory---------- ---swap-- -----io---- -system--
----cpu----
r b swpd free buff cache si so bi bo in cs us sy
id wa
2 0 0 16096936 20156 65712 0 0 29440 29696 698 786 0
0 100 0
0 0 0 16097060 20156 65712 0 0 26288 25856 795 911 0
1 99 0
0 0 0 16097060 20156 65712 0 0 30208 30400 701 792 0
0 100 0
0 0 0 16097060 20156 65712 0 0 30208 30272 703 805 0
1 99 0
--
Simon
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