VERY slow rebuild - 780 hours

Question

I finally sorted out the OS drive full and got repalcement drives for 2 failing drives 1 had ~600k RRE's the other had nearly 7M RRE's!). When I replaced the first drive it rebuilt in a "normal" amount of time (Pro6 6x 3TB drives so it takes a while no matter what). I just replaced the second failing drive and have let it work for an hour or so and it is making basically no progress. The rebuild is progressing ~1MBps.

Recovery 0% complete, Time to finish 787 hr 3 min, Speed 1032 KB/sec

Looks like the drive that was sent isn't the model that I thought, its a HDN724030ALE640. I do see another poster used these drives.

Thoughts?

mdgm-ntgr · Answer

What services are you running?
&nbsp;
What apps do you have installed?
Are you using the NAS heavily at the moment?Have you checked to see if you have another failing disk?

kirkfrey · Answer

CIFS, NFS, FTP, HTTP, HTTPS, Rsync (no changes in months to anything

Dnsmasq and CrashPlan

Nope, I was letting it sit to rebuild. no load (I am now copying off to another device in case another drive is failing)

No other drives with any RRE's

RAIDiator 4.2.22 (no changes)

other than replacing the failed disk, no changes.

kirkfrey · Answer

After having run all night it is still running slow and only 1% done:Recovery 1% complete, Time to finish 729 hr 37 min, Speed 1100 KB/sec&nbsp;Thoughts?

StephenB · Answer

Did you upgrade java on the pro (and change javacommon in crashplan's install.vars)? &nbsp;Or did you just clear the failed upgrade files? &nbsp;You might want to ssh in again, and make sure the OS partition remains ok (crashplan will continue to attempt auto-upgrade, and also they pushed 4.4.1 a couple days ago)? &nbsp;You can also try running top to see if something is really loading down the NAS.
&nbsp;
Are you seeing any bad signs in the SMART stats?&nbsp;

kirkfrey · Answer

Shoot, thought I replied.&nbsp;I upgraded but didnt change java variables - how do I do that?&nbsp;i've re-deleted the upgrade files.&nbsp;No smart errors on any drive&nbsp;Top shows - nothing really run away I think but not sure what a "normal" top looks likePID USER&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; PR&nbsp; NI&nbsp; VIRT&nbsp; RES&nbsp; SHR S %CPU %MEM&nbsp;&nbsp;&nbsp; TIME+&nbsp; COMMAND&nbsp;9942 nobody&nbsp;&nbsp;&nbsp; 20&nbsp;&nbsp; 0 26712&nbsp; 15m&nbsp; 13m S&nbsp;&nbsp; 20&nbsp; 0.4&nbsp; 15:12.74 smbd&nbsp; 867 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 20&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0 D&nbsp;&nbsp; 10&nbsp; 0.0&nbsp; 56:10.34 md2_raid5&nbsp;2068 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 20&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0 S&nbsp;&nbsp;&nbsp; 7&nbsp; 0.0&nbsp; 24:47.82 kworker/0:230645 admin&nbsp;&nbsp;&nbsp;&nbsp; 20&nbsp;&nbsp; 0 13708 4780 2108 D&nbsp;&nbsp;&nbsp; 3&nbsp; 0.1&nbsp;&nbsp; 0:03.39 proftpd&nbsp; 407 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 20&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0 R&nbsp;&nbsp;&nbsp; 1&nbsp; 0.0&nbsp;&nbsp; 4:21.31 kswapd016440 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 39&nbsp; 19 1205m 125m 7644 S&nbsp;&nbsp;&nbsp; 0&nbsp; 3.2&nbsp;&nbsp; 1:16.53 java&nbsp;&nbsp;&nbsp; 1 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 20&nbsp;&nbsp; 0&nbsp; 2068&nbsp; 652&nbsp; 552 S&nbsp;&nbsp;&nbsp; 0&nbsp; 0.0&nbsp;&nbsp; 0:02.04 init&nbsp;&nbsp;&nbsp; 2 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 20&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0 S&nbsp;&nbsp;&nbsp; 0&nbsp; 0.0&nbsp;&nbsp; 0:00.00 kthreadd&nbsp;&nbsp;&nbsp; 3 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 20&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0 S&nbsp;&nbsp;&nbsp; 0&nbsp; 0.0&nbsp;&nbsp; 0:01.23 ksoftirqd/0&nbsp;&nbsp;&nbsp; 4 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 20&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0 S&nbsp;&nbsp;&nbsp; 0&nbsp; 0.0&nbsp;&nbsp; 0:00.15 kworker/0:0&nbsp;&nbsp;&nbsp; 6 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; RT&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0 S&nbsp;&nbsp;&nbsp; 0&nbsp; 0.0&nbsp;&nbsp; 0:00.00 migration/0&nbsp;&nbsp;&nbsp; 7 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; RT&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0 S&nbsp;&nbsp;&nbsp; 0&nbsp; 0.0&nbsp;&nbsp; 0:00.00 migration/1&nbsp;&nbsp;&nbsp; 9 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 20&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0 S&nbsp;&nbsp;&nbsp; 0&nbsp; 0.0&nbsp;&nbsp; 0:01.00 ksoftirqd/1&nbsp;&nbsp; 11 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0 -20&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0 S&nbsp;&nbsp;&nbsp; 0&nbsp; 0.0&nbsp;&nbsp; 0:00.00 khelper&nbsp; 158 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 20&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0 S&nbsp;&nbsp;&nbsp; 0&nbsp; 0.0&nbsp;&nbsp; 0:00.22 sync_supers&nbsp; 160 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 20&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0 S&nbsp;&nbsp;&nbsp; 0&nbsp; 0.0&nbsp;&nbsp; 0:00.00 bdi-default

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VERY slow rebuild - 780 hours

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