Communicator e3000 MPE/iX Release 6.5 (Non-Platform Software Release C.65.00 (30216-90291)

118 Chapter4
Data Center Management
HP SureStore E Disk Array XP256
HP SureStore E Disk Array XP256
by Rich Bassett--CSY Lab
Alex Early--CSY Product Marketing
The Hewlett-Packard SureStore E Disk Array XP256 provides high-capacity, high-speed
mass storage, with continuous data availability, ease of service, scalability, and
connectivity. The disk array can be connected to multiple server systems. The HP 3000
supports the XP256 through Fast-wide SCSI connections. The disk array can have up to 32
SCSI ports. It can be directly connected to the HP 3000 or connected via the SCSI-Fibre
Channel Router for distances up to 10km.
The disk array is the first RAID disk array to truly provide continuous data availability. It
is designed for nonstop operation and continuous access to all user data. The disk array
has no active single point of component failure. It is not expected to fail in anyway that
would interrupt user access to data. The XP256 is easily configured on the HP 3000.
Announcing Support of the HP SureStore E Disk Array XP256
The following is a summary of site, software and hardware requirements for support of the
HP SureStore E Disk Array XP256. Device installation and support is to be provided by
HP. For detail information on the support and configuration of XP256, refer to the
Operating System Configuration Guide. Support of XP256 product will have the following
general restrictions:
• Support will only be allowed on a dedicated SCSI bus, with no other types of devices
(homogeneous bus environment).
• Daisy-chaining of two or more XP256 units are not supported.
• Maximum of 15 LDEVs per SCSI bus (Maximum of 8 LDEVs for performance)
NOTE Having 9 or more LDEVs configured will cause performance degeneration
under high I/O loads.
• No support for shared SCSI busses.
• F/W SCSI Device Adapter Card (28696A, known as “Wizard”) firmware MUST be at
level 3728 or greater.
• 9x9 Core I/O card (A2372-60004 or A3453-60010, known as “Mustang”) will be
conditionally supported with the following restrictions:
— Must disconnect all internal F/W SCSI drives.
— Must have firmware level of 3636.
— Up to 8 LDEVs will be supported (Tested limit).
• LDEV 1 boot will have the following conditions:
— ONLINE HOT replacement of FRUs is supported with the exception of microcode
downloading, online memory replacements, disk adapter replacements.