HP StorageWorks Data Replication Manager HSG80 ACS Version 8.7P Configuration Guide (AA-RPHZF-TE, March 2004)

Configuring a Standard Data Replication Manager Solution
59Data Replication Manager HSG80 ACS Version 8.7P Configuration Guide
Maximum configuration for all platforms
except Novell NetWare:
12 equivalent hosts per storage array
6 host bus adapters (HBAs) per host
24 units per host
8 subsystems per site
There must be least two HBAs per server; refer to
the OS-dependent restrictions in the
HP
StorageWorks SAN Design Reference Guide
.
Maximum configuration for NetWare:
4 HBAs per host 2 HBAs per host minimum.
For IBM AIX, there is a maximum of 32 LUNs
per storage array.
LUNs 1 to 32 are available; LUN 0 is the
Command Console LUN (CCL).
Maximum of 12 remote copy sets allowed
per HSG80 controller pair.
If more than 12 remote copy sets are needed,
additional subsystems are required.
Maximum of 2 unit members allowed per
remote copy set.
Composed of 1 initiator unit and 1 target unit.
Maximum of 12 nonremote copy set LUNs at
initiator and target sites.
Target unit cannot reside on the same
controller pair as its initiator unit.
One controller pair required for initiator; one
controller pair required for target.
Controller replication conducted through port
2 on each controller.
Link between initiator and target site is made
through port 2.
Both port 2 links (top and bottom controllers) must
be up when DRM setup is configured.
Maximum of 96 connections. Effective number of connections is 96 minus the 4
default remote copy connections. More than 96
connections may require use of switch zoning to
restrict visible devices.
DILX (disk inline exerciser) cannot be run on
units used by remote copy sets.
Run DILX prior to creating the remote copy set
configuration. For information on DILX, refer to
the
HP StorageWorks HSG80 Array Controller
ACS Version 8.7 CLI Reference Guide.
The LUN/unit at the initiator and target sites
must be identical.
Keep the unit number, RAID level, disk geometry
used, and other parameters the same to eliminate
confusion and risk of error.
Controller-based partitions are not supported
within remote copy sets.
Host software may be capable of partitioning
units.
Units at the initiator and target sites cannot
be transportable units.
Units cannot be moved to noncontroller
configurations without potential data loss.
FRUTIL cannot be used on remote site while
I/O is in progress to target site.
For information on FRUTIL , see the HP
StorageWorks HSG80 Array Controller ACS
Version 8.7 CLI Reference Guide.
Write history log units must:
■ Reside at the initiator site
■ Not be moved to the target site
■ Not be a partitioned unit
■ Have mirrored write-back cache
disabled
■ Have all access disabled
■ Be re-created at target site after failover
■ Be a mirrorset Can be a 1-member mirrorset.
Table 6: Restrictions and Requirements (Continued)
Restriction or Requirement Comments