On 10/26/2015 8:23 AM, m.roth@xxxxxxxxx wrote:
Running CentOS 6.7, on an older HP DL580 G5. We've got a Dell 12-bay RAID
box plugged into a PERC H800 (aka LSI Liberator) that we put in the HP,
and that works fine. We've got a new RAID (a JetStor), and are trying to
plug it in.
The layout is that the Dell RAID is dual-pathed DAS. Each PERC has two DAS
ports. We've got the Dell RAID in the top port of each PERC. I*thought* I
could just plug the new RAID, which also has two ports, into the bottom
two ports on the PERC.
TRied rescanning the SCSI bus, /sys/class/scsi_host/host[0-5]/scan, with
no apparent sight of the new RAID. Can I do this the way I've got it, or
do I need to daisy-chain the new RAID through the old RAID?
The H800 is a MegaRaid based controller, with dell proprietary firmware.
the Dell '12 bay RAID box', does that actually have its own embedded
raid controller, or is it just a 12 drive SAS jbod box? I'd expect the
latter, as you don't plug a raid into a raid card.
the jetstor, same question, does that have its own raid or is it also JBOD ?
--
john r pierce, recycling bits in santa cruz
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