[CentOS] How to know hardware RAID failure

[m.roth at 5-cent.us]

Mihamina Rakotomandimby wrote:
>
> We have on an old Dell 2850 with 4 SCSI drives, where we put a Hardware
> RAID5 on 3 disks and left 1 as spare.
> I dont remember exactly, but the RAID was setup in the BIOS, and when
> installing CentOS6, I just saw "1 drive".
>
> If it was software RAID, disk failure could be seen in /proc/mdastat,
> and I could simulate failure with mdadm.
>
> As far as it is hardware ATM, how, at least, to know the state of the
> RAID array? (syncing, healthy,...)
>
Um, no. I don't *think* the older Dells had the Intel fakeraid; if you did
it down there, does it have a PERC controller? If so, you need to look in
there.

       mark