
80 IBM BladeCenter JS23 and JS43 Implementation Guide
JS23/JS43 storage
There are currently four different types of storage available:
Internal 73GB or 146GB SAS Hard Disk Drive (HDD) disk storage
Internal 73GB SAS Solid State Drive (SSD) storage
External SAS/SATA disk storage
External Fibre Channel storage
There is not a hardware initiator or TOE card available for the IBM BladeCenter
JS23 or JS43 for iSCSI storage system attachment. Software initiators are
available for AIX and Linux (no VIOS support).
Internal SAS storage
For internal storage, the JS23 blade can have one SAS HDD or SSD. The JS43
can have up to two SAS HDD or SSD storage devices installed.available. The
JS43 supports RAID 0/1 types but both SAS devices must be of the same type
HDD or SSD.
External SAS/SATA storage
External SAS or SATA storage is currently available in the BladeCenter S
chassis. A BladeCenter S can be equipped with up to two Disk Storage Modules
(DSM), which are each capable of holding up to six SAS or SATA hard drives.
This storage can be utilized by installing an Active SAS Pass through Expansion
Card for IBM BladeCenter in the JS23 or JS43 and, one or two SAS Connectivity
modules for non-RAIDed configurations. Two SAS RAID Controller Modules are
required for RAIDed configurations.
With this setup, you are limited to the capacity that can be provided the two
DSMs holding up to the maximum of 12 disks. More external storage could be
made available using iSCSI and software initiators, but this is not recommended
due to limited network port availability. You have only the two onboard network
interfaces of the blade available.
External Fibre Channel storage
Various IBM and non-IBM Fibre Channel storage subsystems can be used to
connect to a JS23 or JS43 installed in a BladeCenter, including models from the
following series:
IBM Total Storage DS8000™ series
IBM Total Storage DS6000™ series
IBM Total Storage DS5000™ series
Note: Internal SAS drives are not currently supported for IBM i under the
VIOS; in this case, they are only for VIOS use.
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