HP XP P9500 Storage - Manual (Page 195)

Table 60 Required Configuration Files (Delta Resync Configuration) (continued)
Remarks Description Item
The following delta resync Cnt Ac-J Z
copy group is required between the local
site and the remote site.
•
For the S-VOL of the delta resync Cnt
Ac-J Z pair, specify the same journal
group number as that of the S-VOL of
the Cnt Ac-J Z copy group, using a
different mirror ID.
local site: DAD ID of the primary site
(set the primary site as the P-VOL)
•
For a Cnt Ac-J Z copy group definition
between the primary site and the
remote site: DAD ID of the primary
site (set the primary site as the P-VOL)
•
For a Cnt Ac-J Z copy group definition
for the delta resync function between
the local site and the remote site:
DAD ID of the local site (set the local
site as the P-VOL)
If the Cnt Ac-S Z consistency preservation
function is not used, the consistency of a
copy pair volume update sequence might
not be preserved in some cases (such as
a line error).
Set this item before starting a copy
operation. Prepare the following route lists by
referring to
Table 61 (page 195) :
Route list definition file
and command device
definition file
•
Route list that is required when all
sites are available
• Route list used when a failure occurs
at a site (recommended)
.
This item is not necessary if you use
Remote Web Console to set up logical
paths. The path set for the following logical
paths is required: Path set definition file
•
An inter-control unit logical path
(bidirectional) between the primary
site and the local site
• An inter-disk controller logical path
(bidirectional) between the primary
site and the remote site
•
An inter-disk controller logical path
(bidirectional) between the local site
and remote site
Table 61 (page 195) describes the required route lists for using Business Continuity Manager in a
delta resync configuration.
Table 61 Required Route List (Delta Resync Configuration)
Route lists needed in
Business Continuity Manager Remote site
condition Local site
condition Primary site
condition Host on which
Business Continuity
Manager is started
Primary → Local Usable Usable Usable Primary host
Primary
→ Remote
Primary
→ Local
Unusable Usable Usable
Primary
→ Remote
Usable Unusable Usable
Primary
1
Unusable Unusable Usable
Local → Primary Usable Usable Usable Local host
Local
→ Remote
Local → Primary Unusable Usable Usable
Defining a Delta Resync Configuration 195