HP 9000 rp5405 Servers User Manual

Page 224

Advertising
background image

n/a

Continuous Access
Journal

Copy-on-Write Snapshot / Fast Snap

Copy pair state

The same primary
volume is not
shared

2

The same primary
volume is shared

1

--

split
resync
restore
delete

split
resync
restore
delete

split
resync
restore
delete

Pair (Full)

--

split
resync
restore
delete

split
resync
restore
delete

split
resync
restore
delete

Pair (PAIR or PFUL)

--

split
resync
restore
delete

split
resync
restore
delete

split
resync
restore
delete

Pair

create

--

--

--

Simplex

--

split
resync
restore
delete

split
resync
restore
delete

split
resync
restore
delete

Unknown

Legend:

1.

This column lists the selectable copy pair statuses when the copy group contains copy pairs that
have the same primary volume.

2.

This column lists the selectable copy pair statuses when the copy group does not contain copy
pairs that have the same primary volume.

3.

This is the copy pair state when a 3DC multi-target configuration is used.

TIP:

Note about pair status transitions:

If a selected copy group includes a copy pair whose copy pair state is

Error (PSUE)

or

Error

in LUSE

, the state of all copy pairs is assumed to be

Error (PSUE)

.

If a selected copy group includes copy pairs whose copy pair states differ, all copy pair statuses
to which each copy pair can be changed are displayed as candidates. However, note that nothing
is displayed if a copy pair whose pair status cannot be changed is included (and pair statuses
cannot be changed on a copy group basis).

Pair status transitions (when the target is a single or multiple copy pairs)

The following table lists possible pair status transitions for each combination of copy pair state and
copy type, when the target is a single or multiple copy pairs.

Managing pair life cycle

224

Advertising