Re: HEALTH_WARN # requests are blocked > 32 sec

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> 
> Writes seem to be happing during the block but this is now getting more
> frequent and seems to be for longer periods.
> Looking at the osd logs for 3 and 8 there's nothing of relevance in there.
> 
> Any ideas on the next step?
> 

Look for iowait and other disk metrics:

iostat -x <list of /dev/disks> 1

high iowait with low throughput could indicate a disk problem. dmesg might show something unless you are using consumer disks that tend to mask errors from the OS.

get smartmontools and do smartctl -H on each disk and see if smart thinks the disk is okay, then smartctl -a on each disk and look for evidence of errors (uncorrectable etc)

James

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