On 3/23/11 12:51 PM, Alan Brown wrote:
> Mehma Sarja wrote:
>> Since drives ONLY fail on Friday afternoons local time, an effective
>> remedy is to check for SMART messages before the weekend. Foolish as
>> that is, I am surprised how many times it has held true for me.
> For similar reasons we only perform work on critical infrastructure on
> tuesday (or thursday if a followup is needed).
>
> Mondays are for picking up any pieces from the weekend and Fridays are
> best left alone.
>
> Equipment tends to fail the evening or day after it was last worked on...
Worst case scenario: A number of years ago, I had a critical central proxy
server whose drive failed
on Christmas Day. Okay, campus was closed and everyone was on vacation, but
lots of people doing
research from home could not access resources. I had no replacement drive on
hand. I had to recover
onto a completely different machine, set up the proxy services, change DNS
entries to point to it,
set up virtual interfaces for the proxy connections, etc. Spent the better part
of Christmas Day and
evening alone in the server room sweating out the details, after I had tracked
down the cause of the
difficulties.
After that, I convinced management to pay for mirrored drives.
--
---------------
Chris Hoogendyk
-
O__ ---- Systems Administrator
c/ /'_ --- Biology& Geology Departments
(*) \(*) -- 140 Morrill Science Center
~~~~~~~~~~ - University of Massachusetts, Amherst
<hoogen...@bio.umass.edu>
---------------
Erdös 4
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