U2 Storage Duel Channel

[daniel murray_1]

The system only shows 6 of the 12 drives.
Drives are the same type and speed.
when I connect to the second channel then it sees the other six drive.

I need to see all 12, What am I doing wrong or not doing?

[Theo Hill_1]

Which server are you talking about and which controller are you using? We can only answer questions where there is enough information available.

[daniel murray_1]

dl380 and 1850r

4200 controllers

[Theo Hill_1]

Neither of these systems hold 12 HDD.

[daniel murray_1]

U2 Storage...
This is a external raid box,rack mountable...

[Jon Fayers]

Daniel,
The U2 is a Dual Bus model , This means that it backplane is split between the two SCSI Buses, As far as I am aware there is no way to address all 12 disks when plugged into just one of the ports.
There was a kit available to convert a dual bus to a single bus unit.304115-B21
You might find the following link useful as it contains the specs of the U2.
http://h18004.www1.hp.com/products/storageworks/raidstorage/ProLiantSSUindex.html

[Reed Simpson]

Have you found a way to "unsplit" the bus?