[Beowulf] Slow RAID reads, no errors logged, why?

[Jörg Saßmannshausen]

Hi Chris,

Am Dienstag, 20. März 2018, 16:44:48 GMT schrieb Chris Samuel:
> On Tuesday, 20 March 2018 11:55:01 AM AEDT Jörg Saßmannshausen wrote:
> > Thus, it could well be that the controller is slowing down the
> > rest of the RAID as there is a bottle neck.
> 
> As David is testing reading from a RAID-5 array then (IIRC) it needs to read
> the stripe from all active drives to retrieve the data, and if one drive is
> slower than the rest then the controller will end up waiting for that
> drive.

Well, that is basically just confirming my suspicion here. :-)

All the best

Jörg