HP StorageWorks P9000 Performance Advisor Software v5.3 User and Troubleshooting Guide (T1789-96322, August 2011)

CHA Channel adapter. A device that provides the interface between the array and
the external host system. Occasionally, this term is used synonymously with the
term channel host interface processor (CHIP).
CHP Channel processor. The processors located on the CHA. Synonymous with CHIP.
CHIP Channel host interface processor. Synonymous with the term CHA.
Command Line
User Interface
(CLUI)
In addition to its GUI, P9000 Performance Advisor also provides a command-line
utility called the CLUI to monitor real-time performance of the XP and the P9000
disk arrays. The CLUI allows you to monitor performance, set alarms, and
configure host information using commands and scripts. You can execute
commands in the CLUI and view the same data that is displayed on the GUI.
The CLUI utility is operating system specific and can be installed locally on the
management station, or remotely on a client system.
Command View
(CV)
Replaced by the Command View Advanced Edition Suite Software.
Command View
AE (CV AE)
The Command View Advanced Edition Suite Software replaces the XP Command
View Software to manage the XP and P9000 disk arrays.
Continuous Access
Synchronous (Cnt
Ac-S)
The Continuous Access Synchronous Software provides remote replication
between the disk arrays that belong to the P9000 and the XP families.
Continuous Access
Journal (Cnt Ac-J)
The Continuous Access Journal Software is an asynchronous mirroring program
similar to the Continuous Access Asynchronous, except that the transactions to
be written to the secondary disk array are maintained in a disk-based journal
file. This provides better performance for the secondary disk array systems that
are not highly available or that may be subject to bandwidth contention from
other applications.
Cache Switch PCB
(CSW)
The CSW PCB has a function to connect the CHA or the DKA to the cache. Each
of them is connected to the cache by the Cache Memory Hierarchical Star Net
(C-HSN) method. Each cluster is provided with two CSWs, and each CSW can
connect four cache. The CSW uses an arbitration to switch any of the cache
paths to which the CHA or the DKA must be connected.
CSV Comma-separated value.
Control Unit
(Command Unit,
CU)
The storage space attached to a DKC can be organized by grouping similarly
configured logical devices (LDEVs) with unique CU images. The CUs are
numbered sequentially. An XP or a P9000 disk array supports a certain number
of CUs depending on the disk array model. Each control unit can manage multiple
LDEVs. Therefore, to uniquely identify a particular LDEV, you need the CU and
the LDEV numbers.
DASD Fast Write
(DFW)
The DFW is the function of a storage controller that allows caching of active
write data without exposure of data loss. This is achieved by journaling of the
active write data in the NVS.
Disk Adapter
(DKA)
The DKA is a PCB in the XP and the P9000 disk arrays. It manages the data
transfer between the cache and the physical drives in the backend.
In an XP disk array, the DKA is one of the two PCB types that contains the MPs.
Glossary466