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is the largest, which scales up to 32 TB of disk storage, at the time this publication was
written. Model 600 provides up to 16 bootable partitions that are attached with the Gigabit
Fibre Channel adapter (FC 1977). Model 700 provides up to 64 bootable partitions. In most
cases, both the FAStT Storage server and the OpenPower 720 or the 7311 Model D20 I/O
drawers are connected to a storage area network (SAN). If only space for the rootvg is
needed, the FAStT Model 100 is a good solution.
For support of additional features and for further information about the FAStT family, refer to
the following Web site:
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 networks. The 2105 Model 800 provides from 582 GB up to
55.9 TB of usable disk capacity. An ESS system can also be used to provide disk space for
booting LPARs or partitions using Micro-Partitioning technology. An ESS is usually connected
to a SAN to which the OpenPower 720 is also connected by using Gigabit Fibre Channel
adapters (FC 1977).
For further information about ESS, refer to the following Web site:
http://www.storage.ibm.com/hardsoft/products/ess/index.html
2.9 Advanced OpenPower Virtualization
Advanced OpenPower Virtualization is a collection of optional features. The POWER
Hypervisor (FC 1965) and the Virtual I/O Server (5724-K81).
To interoperate with the Advanced OpenPower Virtualization features requires either:
SUSE LINUX Enterprise Server 9 for POWER
Red Hat Enterprise Linux AS for POWER Version 3
The POWER Hypervisor feature (FC 1965) provides:
Firmware enablement for LPAR
Firmware enablement for dynamic LPAR
Firmware enablement for partitions using Micro-Partitioning technology
Support of virtual Ethernet
Installation of the Virtual I/O Server software (5724-K81) provides:
– Ethernet adapter sharing
– Support of virtual SCSI
2.9.1 Logical partitioning and dynamic logical partitioning
Introduced with the POWER4 processor product line the logical partition (LPAR) became
available. The technology offered the capability to divide a pSeries system into separate
systems, where each LPAR runs an operating environment on dedicated attached devices,
such as processors, memory, and I/O components. When the customer requested system
flexibility to change the system topology on demand, it was achieved by modifying the system
layout on the required HMC.
34
OpenPower 720 Technical Overview and Introduction
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