Re: Raid5 four drives missing

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> I know of a 4-port sata card that when it has certain issues it seems
> to affect all 4 ports, and required a reboot to fix.  The card I had
> was an AHCI card with a 4port SATA  x pci-e-x2 card, and things like
> smart commands running against it made it much more unreliable, but
> even without the smart commands running against it, it was not
> completely stable and would act up say 1x a month or so.   If the
> 4-port card he has is not one of the near-enterprise grade cards then
> I would suspect that as I attempted to use several non-enterprise
> grade sata cards and finally gave up and obtained a used-enterprise
> grade SAS card.

I've seen that happen with a cheap 8-port SATA-controller. I can only guess the capacitive load with all those cables was higher than what it was designed for. He replaced the controller with an Avago 16-port (4xSAS) controller and it's been stable since.

Vennlig hilsen

roy
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Roy Sigurd Karlsbakk
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