HP StorageWorks XP24000 Continuous Access Journal Software User and Reference Guide, v01 (T5278-96001, June 2007)

Figure 48 Stora ge System Option Settings in the O p tio n al Opera tion Window

• Ac tivities: The number of volumes that can be copied concurrently during an initial copy operation.

Figure 49 System Option Window

• Maximum Initial Copy Activities: Speciﬁes the number volumes that can be copied concurrently

during an initial copy operation. A value within the range of 1 to 128 can be speciﬁed. The

default setting is 64 volumes.

Maximum I nitial Copy Activities can impact the p erformance of the primary storage system,

depending on the amount of I/O activity and the number of pairs being registered at the same

time. If Maximum Ini tial Copy Activities is 64 volumes, it allows you to limit the impact of initial

copy activities on storage system performance. For example, if you set the maximum initial copy

activities to 64 volumes and then add 65 pairs at the same tim e, the primary storage system starts

the

ﬁrst 64 pairs and will not start the 65th pair until one of the pairs is synchronized. When you

change the m aximum initial copy activities set ting, the new set ting applies to pairs created a fter

the

setting was changed, not to existing pairs.

• Set : Closes the System Option window and then adds the settings to the Preview list.

• Cancel: Cancels the settings.

Establishing the Relationship between Primary and Secondary

Storage Systems (Add DKC)

The Add

DKC window (see Figure 50 on page 100) allows you to associate the primary storage system

and the secondary storage system, and also allows you to establish logical paths between the two storage

systems. Logical paths are used to conne ct the primar y and secondary storage systems. Both the p rimary

stora

system and the secondary storage system use logical paths to communicate with each other.

One primary storage system can be associated with up to 64 secondary storage systems. Up to eight

logical paths can be conﬁgured between one primary storage system and one secondary storage system.

Therefore, one primary storage system can have up to 512 logical paths to secondary storage systems.

To associate the primary and secondary storage systems and then conﬁgure logical paths between the

two storage systems, both the primary storage system administrator and the secondary storage system

administrator must perform this operation:

1. Mak

sure the remote copy connections and ports are properly conﬁgured. Also, get the serial

num

ber

for the remote storage system.

Conﬁguring Storage Systems and Logical Paths