NEC Storage ReplicationControl SQL Option User Manual page 33

Chapter 4 Functions of NEC Storage ReplicationControl SQL Option
SnapshotBackup Start
DataBase db_name
MV:physical-disk-no
Volume_name
Path
RV:physical-disk-no
Volume_name
Path
Flush
Flush
Separate
Separating.....
Separate
SnapshotBackup Normal End
DataBase db_name
MV:physical-disk-no
Volume_name
Path
RV:physical-disk-no
Volume_name
Path
Execution Conditions
When performing snapshot backup, it is necessary to meet the following conditions.
(1) MVs and RVs targeted for operation should be set as a pair.
(2) The pair targeted for operation should be principally during restoration synchronization or
replication.
(3) The Copy Control State of the pair targeted for operation should be in the foreground copy status.
* To separate the pairs in the background copy state, it is necessary to perform the copy restart
operation to place the pairs in the foreground copy status.
(4) The disk array in which the specified MV and RV are stored should not be in the freeze state.
(5) The MV targeted for operation should be registered in the volume correspondence table.
(6) The volume of MVs and RVs targeted for operation should be a basic volume.
(Specifying a volume using dynamic volume function is not allowed.)
(7) The MV must exist in the disk array under the own host control.
(8) The data file and the log file included in the database should exist in the target MV.
(9) When specifying a database name with the -db option, only one database must exist in the target MV.
(10) When specifying a database name with the -dbfile option, all databases that exist in the target MV
must be specified.
(11) The metafile-specified location should not be the volume where the data file and log file of the
database are stored.
(12) The disk where the metafile is created should have unused space.
Figure 4-3 shows the execution conditions of the snapshot backup ((1) to (12) in the diagram refer to
the numbers above).
YYYY/MM/DD hh:mm:ss
ld_name
ld_name
Start YYYY/MM/DD hh:mm:ss
Normal End YYYY/MM/DD hh:mm:ss
Start YYYY/MM/DD hh:mm:ss
Normal End YYYY/MM/DD hh:mm:ss
YYYY/MM/DD hh:mm:ss
ld_name
ld_name
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type
type
type
type