SAS Connectivity Card (CIOv) for IBM BladeCenter
5
Take these considerations into account when planning external SAS-based disk storage server
attachments:
DS3200 is supported for both data storage and boot from SAN when attached to the supported
z
BladeCenter chassis.
DS3200 Dual Controller version (1726-22X) is the only supported storage server. The DS3200
z
single-controller version is not supported.
Each SAS connectivity module must be attached to one of the controllers in the DS3200, but not to
z
both. That is, having redundant paths from a single SAS Connectivity Module to both DS3200
controllers is not supported.
Up to 48 hot swap 3.5” disk drives with SAS or SATA interface are supported. Up to three EXP3000
z
expansion units are supported. The intermixing of SAS and SATA drives is supported. Note, however,
that you cannot use both SAS and SATA drives in the same array.
DS3200 can be attached to up to 14 blade servers (one chassis). A Partition Expansion License is
z
required to support more than four host server blades.
RAID levels 0, 1, 10, 3, 5, and 6 are supported by DS3200.
z
A maximum of 48 drives is supported in a single RAID 0, 1, and 10 array.
z
A maximum of 30 drives is supported in a single RAID array for other RAID levels (3, 5, and 6).
z
The logical volume size can be greater than 2 TB.
z
One SAS host interface per controller is supported. The optional DS3200 SAS 2-port Daughter Card
z
(39R6509, feature code 4836) is not supported in this configuration.
Optional FlashCopy and VolumeCopy options are available.
z
BladeCenter S integrated storage - basic RAID functionality
The configuration shown in Figure 4 connects the onboard SAS RAID controller of support blade servers
to the integrated BladeCenter S storage using the SAS Connectivity Card (CIOv) in each server and IBM
SAS Connectivity Modules in the BladeCenter S chassis. In this configuration, the RAID functionality is
provided by the RAID controller on the system planar of the blade server.
Figure 4. IBM BladeCenter S with basic RAID functionality
The components used in this configuration are listed in Table 5.
