.SAN design reference guide Vol. 1-5 785350-001

Table 158 HP P9000 (XP) Continuous Access Journal replication rules (continued)
Description
Rule
number
50.08.05.00/00 (or later) allows creation of Business Copy from these devices, but does not allow a
fast-restore operation for a Business Copy device.
A P-vol can support a maximum of two remote copies (one Continuous Access Journal copy and one
Continuous Access Synchronous copy).
9
Requires a minimum guaranteed network bandwidth link that matches the average host writes of all MCU
journals being serviced.
10
Journal capacity must be capable of buffering data until off-peak times.
• For 256 Mb/s or higher, set the line speed to 256.
• For 100 to 256 Mb/s, set the line speed to 100.
• For 10 to 100 Mb/s, set the line speed to 10.
Note: A minimum of 16Mb/s of IP bandwidth per path is required.
Figure 121 HP P9000 (XP) Continuous Access Journal configuration
P-vol
P-jnl
25321a
Primary site Secondary site
RCU
I
RCU
I
Journal group
Consistency group
S-vol
S-jnl
Figure 122 HP P9000 (XP) Continuous Access P-jnl and S-jnl groups
Consistency
group ID
Journal
group
25322a
P-vol S-vol
8GB
12GB
6GB
9GB
6GB
Figure 123 HP P9000 (XP) Continuous Access 3DC configuration
S-vol
P-vol
P-jnl S-jnl
S-volS/P-vol
Cascaded (1:1:1)
25339a
Direction of data ow
P-jnl S-jnl
S-volP/P-vol
Multi Target (1:2)
Direction of data ow
HP P9000 (XP) Continuous Access configuration support
This section describes the products and maximum distances supported for the following HP P9000
(XP) Continuous Access configuration types:
HP storage replication products 307