HP XP Business Copy Software User Manual

Page 33

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Business Copy XP user guide for the XP10000/XP12000

33

“MU#” in

Figure 12

means MU number, which identifies each MU. MU#=1 under S-VOL1 means the

MU number of the P-VOL that is paired with the S-VOL1 is 1.

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.

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

Table 11

Relationship between L1 pair status and L2 pair operations

L1 Pair

Status

L2 Pair Operations
Paircreate

Pairsplit

Pairresync

Reverse/

Quick Restore

Pairsplit-E

Pairsplit-S

COPY(PD)

OK

NO

(CMD RJT)

OK

NO

(CMD RJT)

OK

OK

PAIR

OK

NO

(CMD RJT)

OK

NO

(CMD RJT)

OK

OK

COPY(SP)

OK

NO

(CMD RJT)

OK

NO

(CMD RJT)

OK

OK

PSUS(SP)

OK

NO

(CMD RJT)

OK

NO

(CMD RJT)

OK

OK

PSUS

OK

OK

OK

NO

(CMD RJT)

OK

OK

COPY(RS)

OK

NO

(CMD RJT)

OK

NO

(CMD RJT)

OK

OK

COPY(RS-R)

OK

NO

(CMD RJT)

OK

NO

(CMD RJT)

OK

OK

PSUE

OK

NO

(CMD RJT)

OK

NO

(CMD RJT)

OK

OK

Table 12

Relationship between L2 pair status and L1 pair operations

L2 Pair

Status

L1 Pair Operations
Paircreate

Pairsplit

Pairresync

Reverse/

Quick Restore

Pairsplit-E

Pairsplit-S

COPY(PD)

OK

1,2

1. MU# of L2 node pair member must be 1 or 2.
2. Not displayed by the array management interface.

OK

OK

OK

OK

OK

PAIR

OK

1,2

OK

OK

OK

OK

OK

COPY(SP)

NO

2

(CMD RJT)

NO

2

(CMD RJT)

NO

(CMD RJT)

NO

(CMD RJT)

OK

OK

PSUS(SP)

NO

2

(CMD RJT)

NO

2

(CMD RJT)

NO

(CMD RJT)

NO

(CMD RJT)

OK

OK

PSUS

OK

1,2

OK

OK

OK

OK

OK

COPY(RS)

OK

1,2

OK

OK

OK

OK

OK

COPY(RS-R)

NO

2

(CMD RJT)

NO

2

(CMD RJT)

PSUE

OK

1,2

OK

OK

OK

OK

OK

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