- ページ 12

スイッチ HP XP20000/XP24000のPDF 設定マニュアルをオンラインで閲覧またはダウンロードできます。HP XP20000/XP24000 36 ページ。 Hp storageworks xp disk array configuration guide: vmware (a5951-96106, september 2010)
HP XP20000/XP24000 にも：リリースノート (13 ページ), 統合マニュアル (29 ページ), リリースノート (4 ページ), 管理者マニュアル (50 ページ), 設定マニュアル (42 ページ), 設定マニュアル (40 ページ), 設定マニュアル (40 ページ), 設定マニュアル (36 ページ), 設定マニュアル (30 ページ), 設定マニュアル (36 ページ), リリースノート (5 ページ), 設定マニュアル (46 ページ), 設定マニュアル (46 ページ), リファレンス・マニュアル (46 ページ), 設定マニュアル (40 ページ), 設定マニュアル (44 ページ), 設定マニュアル (38 ページ), 設定マニュアル (34 ページ), 設定マニュアル (30 ページ), 設定マニュアル (30 ページ)

The following host group mode (option) is available for OpenVMS:

Table 2 Host mode setting

Host Mode

Procedure to set UUID

HP recommends OpenVMS customers use Host Mode Option 33 to enable the UUID feature. This

increases the capabilities for OpenVMS hosts that access the XP disk array, by (1) allowing CU:LDEVs

above 7F:FF to be presented to the OpenVMS hosts and (2) allowing the OpenVMS system adminstrator

to define the DGA device number to present to the OpenVMS host.

If use of Host Mode Option 33 is enabled after devices were already presented to an OpenVMS

host, HP recommends rebooting the OpenVMS host. Though SYSMAN IO AUTO can be used to

discover new DGA devices, this helps avoid problems with stale data structures within OpenVMS.

SAN boot and UUID with OpenVMS. The UUID can be used with OpenVMS for Integrity servers. This

includes the system disk, quorum disk, and Dump Off System Disk (DOSD) volumes. However for

OpenVMS AlphaServer hosts, the UUID for those volumes must be set to the decimal value of the

hexidecimal value of the CU:LDEV value. If the CU:LDEV value is 01:FF, then the UUID must be set to

511 (the decimal value of 01FF). Thuse, none of these volumes can have a CU:LDEV value greater

than 7F:FF. Additionally, these volumes must use LUN numbers 1 to 255. These are limitations of the

AlphaServer firmware used (both for the definition of known paths by the wwidmgr and by the boot

code).

If Host Mode Option 33 is not set, then the default behavior is to present the volumes to the OpenVMS

host by calculating the decimal value of the hexadecimal CU:LDEV value. That calculated value will

be the value of the DGA device number.

CAUTION:

The UUID (or by default the decimal value of the CU:LDEV value) must be unique across the SAN

for the OpenVMS host and/or OpenVMS cluster. No other SAN storage controllers should present

the same value. If this value is not unique, data loss will occur.

If Host Mode Option 33 is not set, none of the OpenVMS LUNs can have a CU:LDEV value

greater than 7F:FF. That hexadecimal value equals decimal 32767, which is the largest DGA

device number allowed by OpenVMS.

If Host Mode Option 33 is set and the UUID for the LUN is not set, then the device will NOT be

presented to the OpenVMS host. If configuration problems arise, use the SYS$ETC:FIBRE_SCAN

program to search for devices that are presented to the OpenVMS host.

Use the following procedure to set the UUID.

Installing and configuring OpenVMS for the XP disk array

Description

Use this host mode to enable the option that sets the UUID