HP Matrix Operating Environment Software - Manual (Page 86)

The HP XP/XP P9000 disk array has constraints for maximum length of host group name that can
be created on the array. SPM supports following limits for maximum length for host group name.
Default host group name if conflict
encountered
Maximum length supported in SPM Array model
SPM_ 64 characters P9500
SPM 16 characters * XP24000/20000
SPM 16 characters XP12000/10000
* — Requires XP24000/20000 array running firmware version 60-08-XX or later to support 32 characters. Otherwise,
host group names are limited to 16 characters.
Backup and restore handling on XP volumes
SPM does not offer full support for backup and restore of XP volumes by writing a management
signature string to XP volumes managed by SPM. This means that XP volumes must be manually
restored, because the volume's signature state will be “Not Present”. For more information, see
“Backup and restore” (page 19) .
86 Working with HP XP/XP P9000 disk arrays