[CentOS] CentOS 6 and an SAS drive, hardware

Tue Jul 26 21:47:52 UTC 2016
John R Pierce <pierce at hogranch.com>

On 7/26/2016 2:38 PM, Peter wrote:
> On 27/07/16 09:11,m.roth at 5-cent.us  wrote:
>> >This is... odd. Got a 6.8 box, a Dell R320 lspci tells me
>> >01:00.0 RAID bus controller: LSI Logic / Symbios Logic MegaRAID SAS 2008
>> >[Falcon] (rev 03)
>> >so it*should*  accept an SAS drive. I've got a Cheetah that's a few years
>> >old, and having pulled it out of another server (in the datecenter), I put
>> >it in this box to zero it out for reuse... and the box refuses to see the
>> >drive.*Nothing*  in dmesg,*nothing*  in /var/log/messages, and I tried
>> >echo "0" etc to get the SCSI buses to rescan.
>> >
>> >Anyone have any ideas?
> That's a hardware RAID controller, so it won't (by default) see single
> drives and pass them directly to the OS like a normal disk controller
> would.  You need to go into the RAID config (you should see an option to
> do this at boot) and configure a RAID with a single disk in a RAID0
> configuration.

or use the MegaCli from linux to do the same, but the syntax is nasty

john r pierce, recycling bits in santa cruz