8.16 HP Utility Meter User's Guide (June 2010)

• URS VLS Devices — One usage report is created every 10 minutes (144 per day). On average, each

report is 8 KB in size. 90 days of usage data is retained in /var. For 1,000 VLS devices under a URS

contract, /var should be approximately 99.5 GB in size:

144 * 8 * 90 * 1,000 = 103,680,000 (~99.5 GB including 500 MB of overhead).

• URS SAN Switches — One usage report is created every six hours. On average, each report is 8 KB

in size. 90 days of usage data is retained in /var. For 1,000 VLS devices under a URS contract, /var

should be approximately 3.0 GB in size:

4 * 8 * 90 * 1,000 = 2,880,000 (~3.0 GB including 500 MB of overhead).

Table 1-2 Disk Space Requirements for /var

Disk Space in GigabytesMetered Devices

35.5 GB for 1,000 partitionsPPU Partitions

8.5 GB for 1,000 disk arraysURS Disk Arrays

105.0 GB for 1,000 VLS devicesURS VLS Devices

3.0 GB for 1,000 SAN switchesURS SAN Switches

For any combination of metered PPU partitions, URS arrays, VLS devices or URS SAN switches, calculate

the size for the /var file system based on the numbers mentioned above.

NOTE: When initially configuring the Utility Meter system, HP recommends you allocate any remaining

space on the installation disk to /var to ensure there is enough space for usage reports.

1.3.3 Supported PPU Platforms

The following WBEM platforms are supported by PPU:

• HP-UX

• Redhat Enterprise Linux, versions 4 U5 and 5 U1 (not yet GA)

• SUSE Linux Enterprise Server 10 SP1

For the list of currently supported PPU Agent platforms, refer to the specific

PPU User's Guide

at: http://

www.hp.com/go/hp-ppu-docs.

1.3.4 Supported URS Disk Arrays

The following disk arrays are supported by URS:

• EVA:

EVA4400/6400/8400•

• XP:

XP20000•

• XP24000

1.3.5 Supported URS VLS Devices

The following VLS devices are supported by URS:

▲ Virtual Tape Libraries:

VLS9000•

IMPORTANT: Utility Meter version 8.16 does not support more than one VLS device on a meter.

Additionally, Utilty Meter version 8.16 does not support more than one Storage Pool.

18 Introduction