On 04/12/2010 12:40 PM, Jeremy Sanders wrote:
Hi - I'm not getting any joy with Fedora's bugzilla. Has anyone seen
problems like this with Fedora 12? Our systems have recently been getting
stuck while rsyncing data onto an MD device:
https://bugzilla.redhat.com/show_bug.cgi?id=578549
You need to lower the sync speed by catting a value into
/sys/block/md{n}/md/sync_speed_max
the value should be about 1/3 lower than the max speed you see (cat
/proc/mdstat) now that it's not yet limited.
Set up a script to set it at boot.
If it was not happening for you on older kernels might be a good sign:
it might mean that the resync is faster now...
What is the sync speed you see (cat /proc/mdstat)? How many drives do
you have and what type of raid is that?
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