Capacity Blocks - HP StoreAll 9730 Administrator's Manual

The X9720 Storage automatically reserves eth0 and eth3 and creates a bonded device, bond0.
This is the management network. Although eth0 and eth3 are physically connected to the Flex- 1 0
Virtual Connect (VC) modules, the VC domain is configured so that this network is not seen by the
site network.
With this configuration, eth1 and eth2 are available for connecting each server blade to the site
network. To connect to the site network, you must connect one or more of the allowed ports as
"uplinks" to your site network. These are the ports marked in green in
Ethernet module cabling—Base cabinet" (page
in your site network, all ports must use the same media type. In addition, HP recommends you use
10 links.
The X9720 Storage uses mode 1 (active/backup) for network bonds. No other bonding mode is
supported. Properly configured, this provides a fully redundant network connection to each blade.
A single failure of NIC, Virtual Connect module, uplink, or site network switch will not fail the
network device. However, it is important that the site network infrastructure is properly configured
for a bonded interface to operate correctly both in terms of redundancy and performance.

Capacity blocks

A capacity block comprises an X9700c chassis containing 12 disk drives and an X9700cx JBOD
enclosure containing 70 disk drives. The X9700cx enclosure actually contains two JBODs—one
in each pull-out drawer (left and right drawer). Each drawer contains 35 disk drives.
The serial number is the serial number of the X9700c chassis. Every server is connected to every
array using a serial attached SCSI (SAS) fabric. The following elements exist:
Each server has a P700m SAS host bus adapter (HBA) which has two SAS ports.
Each SAS port is connected by the server blade enclosure backplane to a SAS switch. There
are two SAS switches such that each server is connected by a redundant SAS fabric.
Each array has two redundant controllers. Each of the controllers is connected to each SAS
switch.
Within an array, the disk drives are assigned to different "boxes," where box 1 is the X9700c
enclosure and boxes 2 and 3 are the left and right pull-out drawers, respectively. The following
diagram shows the numbering in an array box.
1. Box 1—X9700c
2. Box 2—X9700cx, left drawer (as viewed from the front)
3. Box 3—X9700cx, right drawer (as viewed from the front)
An array normally has two controllers. Each controller has a battery-backed cache. Each controller
has its own firmware. Normally all servers should have two redundant paths to all arrays.
214 The IBRIX X9720 component and cabling diagrams
217). If you connect several ports to the same switch
"Virtual Connect Flex- 1 0