HP StorageWorks XP Remote Web Console Software - Manual (Page 41)

Continuous Access XP Journal user guide 41
primary site. Also, if you configure a system in a three-data-center (3DC) cascading configuration (see
” Combining Continuous Access XP Journal with Continuous Access XP (3DC cascading configuration) ” on
page 60) and you use the CL1-A port as an RCU target port in the Continuous Access XP Journal primary
site, you must not use the CL1-A or CL5-A port as an RCU target port in the Continuous Access XP
secondary site. As these examples indicate, you must avoid using illegal combinations of an RCU target
port in the Continuous Access XP Journal primary site and a target port in the Continuous Access XP
Journal primary site. Also, when configuring a system in a 3DC cascading configuration, you must avoid
using illegal combinations of an RCU target port in the Continuous Access XP Journal primary site and an
RCU target port in the Continuous Access XP secondary site.
If you use illegal port combinations, Continuous Access XP Journal remote copy operations are likely to be
suspended due to failures. If a Continuous Access XP Journal remote copy operation is suspended due to a
failure, the following problems occur and the remote copy operation cannot be performed:
• The primary disk array cannot read data from the primary data volume.
• In a system in a 3DC cascading configuration, the intermediate site cannot read data from a volume
used as both a Continuous Access XP Synchronous secondary volume and a Continuous Access XP
Journal primary data volume.
Table 16 Illegal port combinations (for FRONT CL1)
Location
(channel adapter
number)
Illegal port combinations Location
(channel adapter
number)
Illegal port combinations
RCU target port
in Continuous
Access XP
Journal primary
site
Target port in
Continuous
Access XP
Journal primary
site, or RCU
target port in
Continuous
Access XP
secondary site
RCU target port
in Continuous
Access XP
Journal primary
site
Target port in
Continuous
Access XP
Journal primary
site, or RCU
target port in
Continuous
Access XP
secondary site
1E (Basic)
CAUTION: If the
disk array is an
XP10000, the
location is 1A, not
1E.
CL1-A CL1-A, CL5-A 1G (Add.2) CL1-J CL1-J, CL5-J
CL3-A CL3-A, CL7-A CL3-J CL3-J, CL7-J
CL5-A CL1-A, CL5-A CL5-J CL1-J, CL5-J
CL7-A CL3-A, CL7-A CL7-J CL3-J, CL7-J
CL1-B CL1-B, CL5-B CL1-K CL1-K, CL5-K
CL3-B CL3-B, CL7-B CL3-K CL3-K, CL7-K
CL5-B CL1-B, CL5-B CL5-K CL1-K, CL5-K
CL7-B CL3-B, CL7-B CL7-K CL3-K, CL7-K
CL1-C CL1-C, CL5-C CL1-L CL1-L, CL5-L
CL3-C CL3-C, CL7-C CL3-L CL3-L, CL7-L
CL5-C CL-1C, CL5-C CL5-L CL1-L, CL5-L
CL7-C CL3-C, CL7-C CL7-L CL3-L, CL7-L
CL1-D CL1-D, CL5-D CL1-M CL1-M, CL5-M
CL3-D CL3-D, CL7-D CL3-M CL3-M, CL7-M