Server connectivity
Server connectivityServer connectivity
Server connectivity
The XP12000 connects to a variety of servers and operating systems. For details on which servers and
operating systems are currently supported, please contact your resellers and your HP technical support to
review the supported server and operating system information.
Client Host Interface
Client Host InterfaceClient Host Interface
Client Host Interface
Processors (CHIPs)
Processors (CHIPs)Processors (CHIPs)
Processors (CHIPs)
Client Host Interface Processors (CHIPs) provide connections to host or servers that use the XP12000 for
data storage (either directly connected to the servers or through SAN switches). The CHIPs are
configured in pairs for redundancy. The XP12000 can have one, two, three, or four pairs of CHIPs.
CHIP pairs available for use in the XP12000 include:
16 and 32 port 1 to 2 Gbps Auto sensing short-wave and long-wave Fibre Channel with
Continuous Access support
16 port ExSA Channel (ESCON compatible)
8 port 1 to 2 Gbps auto-sensing FICON in both short-and long-wave versions
Array Control Processor
Array Control ProcessorArray Control Processor
Array Control Processor
(ACP)
(ACP)(ACP)
(ACP)
The Array Control Processor (ACP) performs all data movement between the disks and cache memory.
The ACP also provides data protection through the use of RAID 1 and RAID 5. Each ACP has eight 2 GB
FC-AL loops (compared to four 1 GB/s loops in the XP1024/XP128), or 16 loops total per pair, and
supports up to 48 disk drives per loop. The ACP is configured in pairs for redundancy. The XP12000 can
have one, two, three, or four pairs of ACPs.
Cache memory
Cache memoryCache memory
Cache memory
Cache memory is used to temporarily store data from the host until it is written to disk, or to stage data
requested by the host from the disk. The XP12000 cache memory modules are installed on Cache
Platform Boards:
The basic Cache Platform Board pair supports up to 16 sets of cache modules (up to 64 GB).
The optional Additional Cache Board Pair supports up to 16 additional sets of cache modules (up
to an additional 64 GB).
The cache is configured as two sets of memories, onto which data that is to be written on the disk is
mirrored, so the data will not be lost even if a cache failure occurs.
Shared memory
Shared memoryShared memory
Shared memory
Shared memory is independent of the cache memory and is used to store tables, side files, and other
information, thus freeing up the cache memory for user data. Shared memory is also used to store
system configuration information. The configuration information includes system components mapping,
LUN maps, cache pointers, and RAID levels.
All shared memory is backed up by a fully redundant 48 hour battery.
Switch support details
Switch support detailsSwitch support details
Switch support details
The XP12000 connects to the leading Fibre Channel switches in the industry today. For detailed
information on supported switch configurations, please contact your sales representative.
QuickSpecs
HP StorageWorks XP12000 Disk Array
HP StorageWorks XP12000 Disk ArrayHP StorageWorks XP12000 Disk Array
HP StorageWorks XP12000 Disk Array
Standard Features
DA - 12072 Worldwide — Version 4 — May 16, 2005
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