Relationship Between L1 Pair Status And L2 Pair Operations; Relationship Between L2 Pair Status And L1 Pair Operations - HP StorageWorks XP10000 User Manual

• "MU#" in Figure 12
MU number of the P-VOL that is paired with the S-VOL1 is 1.
Table 11

Relationship between L1 pair status and L2 pair operations

L1 Pair L2 Pair Operations
Status
Paircreate
COPY(PD) OK
PAIR OK
COPY(SP) OK
PSUS(SP) OK
PSUS OK
COPY(RS) OK
COPY(RS-R) OK
PSUE OK
Table 12 shows the relationship between the L2 pair status and availability of pair operations on the
associated L1 pairs. (CMD RJT = command rejected.) If you delete an L1 pair containing an L2 pair, the L2
pair becomes the L1 pair.
Table 12

Relationship between L2 pair status and L1 pair operations

L2 Pair L1 Pair Operations
Status
Paircreate
1,2
COPY(PD) OK
1,2
PAIR OK
2
COPY(SP) NO
(CMD RJT)
2
PSUS(SP) NO
(CMD RJT)
1,2
PSUS OK
1,2
COPY(RS) OK
2
COPY(RS-R) NO
(CMD RJT)
1,2
PSUE OK
1. MU# of L2 node pair member must be 1 or 2.
2. Not displayed by the array management interface.
The read/write operation to each volume (root, node, or leaf) from the host is enabled or disabled
depending on the status of L1/L2 pairs. The read/write operation from the host can always be performed
means MU number, which identifies each MU. MU#=1 under S-VOL1 means the
Pairsplit Pairresync
NO OK
(CMD RJT)
NO OK
(CMD RJT)
NO OK
(CMD RJT)
NO OK
(CMD RJT)
OK OK
NO OK
(CMD RJT)
NO OK
(CMD RJT)
NO OK
(CMD RJT)
Pairsplit Pairresync
OK OK
OK OK
2
NO NO
(CMD RJT) (CMD RJT)
2
NO NO
(CMD RJT) (CMD RJT)
OK OK
OK OK
2
NO —
(CMD RJT)
OK OK
Reverse/
Quick Restore
NO
(CMD RJT)
NO
(CMD RJT)
NO
(CMD RJT)
NO
(CMD RJT)
NO
(CMD RJT)
NO
(CMD RJT)
NO
(CMD RJT)
NO
(CMD RJT)
Reverse/
Quick Restore
OK
OK
NO
(CMD RJT)
NO
(CMD RJT)
OK
OK
—
OK
Business Copy XP user guide for the XP10000/XP12000
Pairsplit-E Pairsplit-S
OK OK
OK OK
OK OK
OK OK
OK OK
OK OK
OK OK
OK OK
Pairsplit-E Pairsplit-S
OK OK
OK OK
OK OK
OK OK
OK OK
OK OK
— —
OK OK
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