Re: [SLUG] Adaptec RAID problems

[Ben Donohue <donohueb@xxxxxxxxxxxx>]

Hi Robert,

I don't know about

> that the HBA driver loads the firmware onto the drives?

I've updated HP drives firmware and fixed strange problems. Didn't know 
they were Hitachi drives.
>   I've tried the harddrive vendor (Hitachi), but they don't
> release firmware updates.
>
>    
> I reduced the size of the array to 4x2Tb RAID10 (4Tb redundant).
> Perhaps I'll try a smaller size to see if I have the same problem.
> The easiest way to replicate the problem is to run hdparm -t /dev/sda
> I get about 400kB/s on the problem RAID.
>
>    
Suggest doing a small raid 5 array (10gb) with 3 drives. Does this work?

Could be a faulty drive or the large size has a bug. If it does not work 
as a small array it won't work as a large one.
Ben