Hp XP Business Copy Software Bedienungsanleitung PDF herunterladen (Seite 35)

L2 Pair OperationsL1 Pair

Status

Pairsplit-

Reverse/ Quick Re-

store

Pairre-

sync

PairsplitPaircre-

ate

OKOK

(CMD RJT)

OKPSUE

Table 9 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 9 Relationship between L2 pair status and L1 pair operations

L1 Pair OperationsL2 Pair

Status

Pairsplit-

Reverse/

Quick Restore

PairresyncPairsplitPaircreate

OKOKOKOKOK

1, 2

COPY(PD)

OKOKOKOKOK

1, 2

PAIR

OKOK

(CMD RJT)

COPY(SP)

OKOK

(CMD RJT)

PSUS(SP)

OKOKOKOKOK

1, 2

PSUS

OKOKOKOKOK

1, 2

COPY(RS)

————

(CMD RJT)

COPY(RS-R)

OKOKOKOKOK

1, 2

PSUE

MU# of L2 node pair member must be 1 or 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 to the root volume regardless of the status of L1/L2 pairs. Table 10 shows the relationship

between read/write operations from host to node volume and status of L1/L2 pairs. Table 11 shows

the relationship between read/write operations from host to leaf volume and L2 pair status.

Table 10 Read/write operation (host to the node volume) and L1/L2 pair status

L2 Pair StatusL1 Pair

Status

PSUECOPY(RS)PSUS(SP)/

PSUS

COPY(SP)PAIRCOPY(PD)

Read OnlyRead OnlyRead OnlyRead OnlyRead OnlyRead OnlyCOPY(PD)

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