[CentOS] CentOS 6 and an SAS drive, hardware

Tue Jul 26 21:56:03 UTC 2016
m.roth at 5-cent.us <m.roth at 5-cent.us>

John R Pierce wrote:
> 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
>>> >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

Yeah, well, the thing is, for years I've just been shoving ordinary SATA
drives into the same server, to use to copy from other machines via rsync,
getting a drive ready to replace in another server. I've never had trouble
with SATA. This is the first time with an SAS drive.