HP StorageWorks SAN Virtualization Services Platform 3.0.1 Release Notes (5697 - 0405, May 2010)

• Maximum number of virtual disks (including snapshots, snapclones, 4 paths): 4093 + 3 setup

virtual disks per DPM pair.

• Maximum number of virtual disks per host: 255 (LUNs 1–255)—depending on operating system

• Maximum size of virtual disk: 16 TB

• Minimum size of virtual disk: 1 GB

• Maximum number of PiTs per virtual disk: 32 at 10–minute intervals or 64 at 60–minute intervals

• The minimum interval between point in time (PiT) copies is 10 minutes. This also limits the minimum

asynchronous replication (remote mirror) recovery point objective to the same 10–minute interval.

• Maximum number of mirror PiTs (required PiTs + PiTs alert) on either source or destination virtual

disk or virtual disk group: 64

• Total number of PiTs per SVSP system: 4096

• Maximum snapshots per PiT: 32

• Maximum snapshots per virtual disk: 64

• Maximum front-end presentations per DPM: 8192 (4096 LUNs with 2 paths per virtual disk per

DPM)

• Maximum number of initiators per virtual disk: 64 (32 dual-port hosts) if supported by OS and

multipath drivers

• Maximum number of virtual disk members in a virtual disk group: 32

• Maximum number of synchronous mirror virtual disks per DPM group: 128 (512 with 4 DPM

groups)

• Maximum number of total active asynchronous remote copies, snapclones, and concurrent migration

jobs per SVSP system: 512

• Maximum number of asynchronous mirror tasks (remote copies) per source virtual disk: 3

• Maximum number of cross-connected systems or domains for management over IP: 4

SVSP back-end capabilities and limitations

• Back-end array capacity of the SVSP system: 2 PB

• Total back-end target ports: 128 (32 arrays with 4 ports per array)

• Maximum number of paths per back-end LU: 8

• Maximum number of back-end LUs: 1024

• Maximum number of back-end paths: 4096

• Largest back-end LUN: 2047 GB

• Smallest back-end LUN: array dependent

• Maximum number of back-end LUNs per back-side initiator/target pair: 254 (LUNs 1–254)

• Maximum number of stripe set members: 16

Configuration best practices

The following are a list of directives that must be followed for the HP SAN Virtualization Services

Platform.

• SVSP 3.0.x can be installed only on a 64–bit Windows 2008 Server Standard Edition with SP2.

It cannot be installed on a Windows 2008 Server with R2.

• Native QLogic HBAs drivers must be installed before VSM can be properly installed on a server.

• HP recommends that you place the setup virtual disks on three dedicated storage pools (that will

not be used for allocating any other virtual disks). These pools should be created on different arrays

or different RAID groups if possible.