HP XP P9500 Storage - Manual (Page 18)

Table 1 General system requirements (continued)
Requirement Item
Supported RAID groups •
RAID1, RAID5, and RAID6 are supported for both data and journal volumes.
•
RAID1, RAID5, and RAID6 can co-exist in the same journal.
Virtual LVI: Supported volume types
•
Can be used for data and journal volumes.
• S-VOL capacity must equal P-VOL capacity.
Cache Residency:
• Data volume: yes
•
Journal volume: no
Must be operable for primary and secondary systems to ensure pair creation
success. The remote system cache must be configured to adequately support Cnt Cache and nonvolatile storage
(NVS)
Ac-J Z remote-copy workloads, as well as local workload activity. In general,
increase cache capacity by 25 percent for Cnt Ac-J Z. Also, 1 GB should be added
for each journal on the system.
Note: When pair status is Pending, neither cache nor shared memory can be added
to or removed from the system. When either of these tasks is to be performed, first
split any pairs in Pending, status, then resynchronize when the cache or shared
memory operation is completed.
Required for disaster recovery. Host failover software
Extended consistency groups
(EXCTGs) •
A storage system can have a maximum of four EXCTGs.
•
An EXCTG can contain a maximum of 16 registered journals.
• An EXCTG can contain journals from a maximum of four systems.
•
A journal cannot be registered in more than one EXCTG.
Journals • Max. number: 256 (0 to 255) per storage system
•
Recommended number per storage system: Up to 16
• Max. number of journal volumes: 64 per journal
•
Max. number of data volumes: 8,192 per journal
See “Planning journal volumes ” (page 25) for all requirements and restrictions.
Business Continuity Manager specifications
Business Continuity Manager commands for Continuous Access Journal Z pair operations are
issued from the host system console to the storage system. With Business Continuity Manager
commands, you can add, suspend, resume, and release pairs, as well as monitor pair status. You
can also add and delete storage systems.
The two tables below provide values for the P9500 system adapter ID (SAID). For more information,
see Business Continuity Manager User Guide.
Table 2 SAID values for PATH LINK (CL1)
SAID Port Packg
local SAID Port Packg
local SAID Port Packg
local SAID Port Packg
local
X'0088' CL9-J 1LU X'0080' CL9-A 1AU X'0008' CL1-J 1GU X'0000' CL1-A 1EU
(DKA
Add2) (DKA
Basic) (Add4) (Basic)
X'00A8' CLB-J X'00A0' CLB-A X'0028' CL3-J X'0020' CL3-A
X'00C8' CLD-J X'00C0' CLD-A X'0048' CL5-J X'0040' CL5-A
X'00E8' CLF-J X'00E0' CLF-A X'0068' CL7-J X'0060' CL7-A
18 Requirements and specifications