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RX6600 - SAS P400 controller

 

RX6600 - SAS P400 controller

Hi,

My customer has the following configuration :
- rx6600 with 16 SAS internal disks.HPUX 11.31
He plans to use RAID 5 , so the SAS P400 controller has been choosen.
The question is : is it possible to manage the 16 internal SAS disks with the SAS P400 controller.

Regards

Ky Phung NGUYEN
8 REPLIES 8
TTr
Honored Contributor

Re: RX6600 - SAS P400 controller

You need 2 P400 controllers to support 16 disks. Look in the rx6600 quick specs for more details under the "Standard features" section.
http://h18000.www1.hp.com/products/quickspecs/12596_div/12596_div.HTML

Re: RX6600 - SAS P400 controller

Hi,

Thanks for the answer. Normally, we have two connectors on the SAS P400 controller.
Does that mean , we only connect the 8 first disks to the connector of the 1st controller, and the 8 last disks to the connector of the 2nd controller.

Regards

Ky Phung NGUYEN
TTr
Honored Contributor

Re: RX6600 - SAS P400 controller

Each connector on the P400 can handle 4 disks, so 8 disks are connected on one P400 and 8 disks on the other. If you order these factory installed, you do not have to worry about wiring and wires.
rick jones
Honored Contributor

Re: RX6600 - SAS P400 controller

And just to be sure - you/your customer have ordered an rx6600 with the combo PCIe/PCI-X I/O backplane right?
there is no rest for the wicked yet the virtuous have no pillows

Re: RX6600 - SAS P400 controller

HI,

Yes I think that we will need two P400 controller. But the problem, is , when I read the documentation, the SAS disks are connected through only 2 cables, and on each P400 controller we have two ports where thes 2 cables can be connected. So, the question is :
how to connect the 16 disks with only 2 cables. I think that we need in this case 4 cables.

Regards

Ky Phung NGUYEN
Torsten.
Acclaimed Contributor

Re: RX6600 - SAS P400 controller

In the rx6600 each group of 4 disks are connected to 1 cable - so you have 4 cables for all 16 disks.

cable 1A/B are the upper 8 disks
cable 2A/B the lower 8 disks

Hope this helps!
Regards
Torsten.

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Re: RX6600 - SAS P400 controller

Hi,

Thanks for all these informations.

Regards

Ky Phung NGUYEN

Re: RX6600 - SAS P400 controller

the informations given are very useful