HP XP24000/XP20000 Business Copy Software User Guide (T5213-96034, November 2011)

Table Of Contents
Table 33 Read/Write to Node Volumes According to Status of L1/L2 Pairs
L2 Pair StatusL1 Pair
Status
PSUECOPY(RS)PSUSPSUS(SP)COPY(SP)PAIRCOPY(PD)
Read OnlyRead OnlyRead OnlyRead OnlyRead OnlyRead OnlyRead OnlyCOPY(PD)
PAIR
COPY(SP)
Read/WriteRead/WriteRead/WriteRead/WriteRead/WriteRead/WriteRead/WritePSUS(SP)
PSUS
Read OnlyRead OnlyRead OnlyRead OnlyRead OnlyRead OnlyRead OnlyCOPY(RS)
COPY(RS-R)
PSUE
Table 34 (page 72) indicates the relationship between read/write operation from the host to the
leaf volume and the L2 pair status.
Table 34 Read/Write to Leaf Volume According to L2 Pair Status
L2 Pair Status
PSUECOPY(RS)PSUSPSUS(SP)COPY(SP)PAIRCOPY(PD)
Read OnlyRead OnlyRead/WriteRead/WriteRead OnlyRead OnlyRead Only
Splitting Pairs
The Pairsplit dialog box (see Figure 33 (page 73)) allows you to split existing XP Business Copy
pairs. The Pairsplit dialog box can also be used to simultaneously create and split new XP Business
Copy pairs.
For information about how to split pairs, see (page 76). For information about how to create and
split pairs, see (page 77). In addition, you can split multiple pairs at the same specified time by
using RAID Manager. For details, see (page 78).
72 Performing XP Business Copy Operations