On 03/10/2016 10:35 AM, compdoc wrote:

> You don't have to guess about failing hard drives. You only have to read the
> SMART info from each of your drives. That will tell you. 

That is not entirely true. "Desktop" drives will spend a lot of time
trying to relocate data from failing sectors before they consider
themselves failing. With enough sectors going bad at once you can have a
drive without any SMART errors causing all sorts of problems from "stuck
task" lock-ups to filesystem errors.

One way you find those is run iostat during i/o load and see if any
drives report 100% utilization or more with very high iowait times. (Of
course there may be other reasons for high iowait and/or % utilization.)

Or just buy TLER drives.

-- 
Dimitri Maziuk
Programmer/sysadmin
BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu

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