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Chapter 2. Architecture and technical overview 37
IBM 7133 Serial Disk Subsystem (SSA)
The p5-570 system supports the Advanced Serial RAID adapter (FC 6230), to attach the IBM
7133 Serial Disk Subsystem Model D40, if migrated from a pSeries system.
The IBM 7133 Serial Disk Subsystem Model D40 provides a 4U highly available storage
subsystem for pSeries servers and is a good solution for providing disks for booting additional
LPARs. Disks are available from 18.2 GB to 72.8 GB at the time this publication was written.
SSA disk subsystems are connected to the server in loops. Each 7133 disk subsystem
provides a maximum of four loops with a maximum of four disks each. Therefore, up to four
additional LPARs could be provided with disks with dedicated loops for booting by using one
Advanced Serial RAID Plus adapter (FC 6230) for each LPAR. Disk space for booting could
be provided in JBOD (Just a Bunch Of Disks) or RAID mode.
For further information about SSA, visit the 7133 pages at:
http://www.storage.ibm.com/hardsoft/products/7133/7133.htm
IBM TotalStorage FAStT Storage servers
The IBM TotalStorage FAStT Storage server family consists of five models: 100, 200, 600,
700, and 900. As this publication was written Model 100 was the smallest model, scaling to
14 TB. Model 900 is the largest, and it scales to 32 TB. Model 600 provides up to 16 bootable
partitions, which are attached with the Gigabit Fibre Channel adapter (FC 6239 or FC 5716).
Model 700 provides up to 64 bootable partitions. In most cases, both the FAStT storage
server and the p5-570 or the 7311 I/O drawers are connected to a Storage Area Network
(SAN). If space is needed only for the rootvg, the FAStT Model 100 or 200 is a good solution.
For support of additional features and for further information about the FAStT family, refer to:
http://www.storage.ibm.com/hardsoft/disk/fastt/index.html
IBM TotalStorage Enterprise Storage Server®
The IBM TotalStorage Enterprise Storage Server (ESS) is the high-end premier storage
solution for use in Storage Area Network. The 2105 Model 800 provides from 582 GB to
55.9 TB of usable disk capacity. An ESS system could also be used to provide disk space for
booting LPARs or partitions using Micro-Partitioning technology. An ESS is usually connected
to a Storage Area Network (SAN) to which the p5-570 is also connected by using Gigabit
Fibre Channel adapters (FC 6239 or FC 5716).
For further information about ESS refer to the following Web site:
http://www.storage.ibm.com/hardsoft/products/ess/index.html
Notes: FC 6230 serial RAID adapters provide boot support from a RAID-configured disk
with firmware level 7000 and above.
Fastwrite cache must not be enabled on the boot resource SSA adapter.
For more information about SSA boot, see the SSA Frequently Asked Questions page at:
http://www.storage.ibm.com/hardsoft/products/ssa/faq.html
Note: To boot the p5-570 system, one logical partition, or any other pSeries server from a
SAN using FC 6239, the adapter microcode 3.22A1 or later is required. Boot support is
provided from direct-attached FastT as well as from SAN attached FastT.