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July 13th, 2013 17:00
Perc 6/I controller channel selection issue
Recently acquired a 2900iii with Perc 6/I controller. Drive setup will only allow Channel 0, have not been able to select Channel 1. Desire to install additional physical drives. Have checked the cabling to the backplane and both cables are present. Reseated the cables, but no difference.
Running Server 2012 and the OS sees both controllers, just can't change the selected controller for setup.
ideas?
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theflash1932
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July 13th, 2013 17:00
"the OS sees both controllers, just can't change the selected controller for setup"
I don't understand this.
The 2900, with an 8-disk backplane, has two channels, each connecting to a separate channel on the PERC ... one controls disk slots 0-3 and one controls disk slots 4-7. I'm not sure exactly what you are trying to do, but you cannot assign drives arbitrarily to a particular channel; if you want drives on channel 1, they must be in slots 4-7. How many drives do you have in already? Which slots are you attempting to use?
Sorry if some of these statements/questions are overly basic for you ... I didn't really understand some of your post, nor is there enough information to know for sure what is going on.
oilieone
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July 13th, 2013 17:00
New to servers unfortunately, and, did not receive any documentation with the 2900. When booting and going to the setup through ctl-r, only see "controller 0" am I wrong to think there should be a "controller 1"? Have 2 drives in slots 0-3 containing the OS and 3 drives in 4-7 for data.
Wanting to add additional storage, assuming second channel. but, I think I understand a bit more in that will have to use 4-7 with larger drives to get the additional volume.
theflash1932
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16.3K Posts
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July 13th, 2013 17:00
Documentation (although it might be simpler just to ask here ;)):
www.dell.com/.../poweredge-2900
There will only show one controller in CTRL-R if you only have one controller installed (if you have two "PERC" controllers installed - like one for internal storage and one for external storage, or some of the latest systems support two internal controllers, then BOTH controllers will be accessible in the same CTRL-R utility). The controller can easily handle arrays made up of drives from both channels, but if you want to split your VD's/arrays, then you can ... you just have to have them in slots 4-7 (leaving slots 2,3 empty, with disks 0,1 in RAID 1 on channel 0).