RAID6 data-check took almost 2 hours, clicking sounds, system unresponsive

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Hi Neil,

My original email may have been eaten: as it did not appear on the list, nor did I get an error message back.  So perhaps there was a problem with the attached files.

I will resend the attachments one at a time in separate emails.


Cheers,
Gavin

[begin original]
Hi Neil,

Your help (or anybody else's) would be greatly appreciated, yet again!

This morning, I noticed my system was extremely unresponsive, and that there were clicking sounds coming from one of my 5 hard drives.  Also that there was excessive disk I/O even for trivial things like bring up a directory window, and lots of ata3 errors being reported to the system log.  These symptoms were mostly during a raid check process.

Somewhere along the way, I seemed to have lost my swap partition!

So I did some extensive investigations, which took most of the day.  My notes were created in OpenDocument format using LibreOffice, but I have converted them to txt format for the include - but I can supply the ,odt file if requested.

I Have included 2 files:
               my notes: raid-notes-20110407a.txt
   selected log entries: messages-gcf-20110407-ATA

If there are some additional diagnostics that might prove useful, please let me know.


Cheers,
Gavin
[end original]
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