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3.1 PowerVM Version 2.2 enhancements
The latest available PowerVM Version 2.2 contains the following enhancements:
Support for up to 160 LPARs on PS703
Support for up to 320 LPARs on PS704
Support for up to 80 LPARs on Power 710 and 720
Support for up to 160 LPARs on Power 730 and 740
Support for up to 320 LPARs on Power750
Support for up to 640 LPARs on 770 and 780
Support for up to 1000 LPARs on Power 795
PowerVM support for sub-chip per-core licensing on Power 710, 720, 730, and 740
Role Based Access Control (RBAC)
RBAC brings an added level of security and flexibility in the administration of VIOS. With
RBAC, you can create a set of authorizations for the user management commands. You
can assign these authorizations to a role UserManagement and this role can be given to
any other user. So a normal user with the role UserManagement can manage the users on
the system but will not have any further access.
With RBAC, the Virtual I/O Server has the capability of splitting management functions
that presently can be done only by the
only the necessary access to users, and easy management and auditing of system
functions.
Suspend/Resume
Using Suspend/Resume, clients can provide long-term suspension (greater than 5-10
seconds) of partitions, saving partition state (memory, NVRAM, and VSP state) on
persistent storage, freeing server resources that were in use by that partition, restoring
partition state to server resources, and resuming operation of that partition and its
applications either on the same server or on a different server.
Requirements for Suspend/Resume: All resources must be virtualized prior to suspending
a partition. If the partition is to be resumed on a different server, then the shared external
I/O (disk and LAN) should remain identical. Suspend/Resume works with AIX and Linux
workloads when managed by HMC.
Shared storage pools
VIOS 2.2 allows the creation of storage pools that can be accessed by VIOS partitions
deployed across multiple Power Systems servers so that an assigned allocation of storage
capacity can be efficiently managed and shared.
Thin provisioning
VIOS 2.2 supports highly efficient storage provisioning, whereby virtualized workloads in
VMs can have storage resources from a shared storage pool dynamically added or
released as required.
VIOS grouping
Multiple VIOS 2.2 partitions can utilize a common shared storage pool to more efficiently
utilize limited storage resources and simplify the management and integration of storage
subsystems.
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IBM BladeCenter PS703 and PS704 Technical Overview and Introduction
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user, providing better security by giving
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