Specifications

A Comparing the XP24000/XP20000 Disk Array and
P9500
Comparison of the XP24000/XP20000 Disk Array and P9500
The P9500 includes several upgrades from the XP24000/XP20000 Disk Array as well as a number
of new features. These include:
• High scalability. The system supports configurations of 2 1/2 disk drives in either a single or
dual DKC configuration
• Shared processors. In the P9500, the processor and interface cards are separate. This allows
either or both to be configured separately, and allows each processor to share resources
across multiple interface cards.
• Load balancing. The P9500 disk array allows workloads to be better balanced across
management processor and breaks the affinity between specific front end and back end ports
with specific processors.
• High performance. The system uses shared high performance quad core processors instead
of single core. This significantly increases system total processing speed and distributes
processing across the CHAs and DKAs as needed.
• Faster access to system control information through the use of on board memory.
• Storage management usability improvements. The new version includes a user friendly, task
based GUI that reduces the number of operations needed to complete a task and includes
wizards to assist users in new or repetitive tasks. This version of Remote Web Console also
includes context sensitive online help.
The following tables show the main differences between the XP24000/XP20000 Disk Array and
the P9500.
Table 23 Storage management improvements
XP24000/XP20000 Disk ArrayP9500
Architecture OrientedUse Case Oriented Operation
Many steps and clicks for operationFewer steps and clicks
Slow performance impressionFaster operation and higher performance
Many user interfacesUnified User interface (GUI/CLI)
Table 24 Basic Mainframe functional differences
XP24000/XP20000 Disk ArrayP9500Feature
SupportedNot supported (Only FC V2)FlashCopy Version 1
3380-33380-3Drive Emulation Type
3390-1/2/3/3R/9/L/M3390-1/2/3/3R/9/L/M/V
3990/2105/21072105/2107DKC Emulation Type
1616The number of multi relations
10485751048575The maximum relations in system
10001000The maximum relations for each VOL
Source : Supported (V07 or higher)Source : SupportedExternal VOL
Target : Supported
Save to SVPSave to SVPSaving Differential Bitmap
Comparison of the XP24000/XP20000 Disk Array and P9500 77