[Gllug] Disk problems

[Alain Williams]

On Thu, Sep 12, 2002 at 08:03:45AM +0100, Chris Bell wrote:
> On Tue 10 Sep, Alain Williams wrote:
> > 
> > A machine that I look after has suddenly developed disk problems.
> > 
> > 
> > 
>    Did your disc changes cure the problem? 3 hard discs, 1 CDROM, plus a
> tape, could be near the practical limit for some power supplies, one
> specialist case supplier near me always soak tests every power supply sold
> at full load for 24 hours, and says that most regular boxes would fail the
> test.

Now there is an interesting idea ! Fits the facts.
A change of all 3 disks, did not cure the problem. Worked OK for a bit, but under load
get errors. The problem first appeared (after 5 1/2 months uptime, and a box put together
a year or two ago) at 4am on Monday - that is when the backup starts --- ie extra juice
needed to move the tape.
Problems occured most under heavy I/O, eg: copy one disk to another.

I am going to get someone to stick a volt meter on the box tomorrow.

I have spent today moving all the s/ware onto a new box, getting all the config right.
Seems OK.

I must admit that electrical power calculations are not something that I do, maybe
I ought to.

-- 
Alain Williams

#include <std_disclaimer.h>

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