On 07/02/2013 08:29 AM, Hugo Mills wrote:
This is usually an indication that you have bad hardware -- I'd suggest testing RAM, PSU, CPU in that order. I'm not sure what, if anything, can be done to fix the error on the disk right now.

Thanks, appreciated.

Hmm. I've got one stick of ram out of the machine due to testing as I had some freezes last week. If it were one of the RAM, PSU and CPU then I'm unsure why this IO issue only surfaces on the HDD and not the SSD. I ordered a new HDD last night, before reading your post. If its not the disk I'll go raid1. If it is the disk then I'll probally find out.

Not that I've done anything other than a cursory check but it looks
like the read only data is fine.
    Might be a good idea to use that to refresh your backups, just in
case my prediction about the fixability is correct.

Well, first option is to drop in the new disk, freshly format it and copy the data across (not add it as a second disk). If that fails last backup was wednesday. I've not done much of note since then apart from try to fix the disk issues.


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