Release 6.0
60
User Guide
Chapter 1 Overview
1.3.2.2 Notes on Turning Off the AC Power
1. Backing up user data
If the power of this disk array system is turned off without going through the power off procedure
described in
Section 1.3.2: “Powering Off the Disk Array System”
, or the power control systems
without using DC buttons section described in
Section 1.3.1: “Powering On the Disk Array System”,
the user data on caches will be backed up on the flash memory of the unit.
Data will not be lost even if the power is turned off without going through the procedures.
2. Notes on using the data replication function
The update information (= storage system information) managed by the data replication function
(DynamicDataReplication or RemoteDataReplication) is created on a replication reserved volume
or the cache memory.
If no replication reserved volume has been created, the update information mentioned above is
created only on the cache memory. In these circumstances, even if the disk array system is
powered off according to the procedure described in
Section 1.3.2: “Powering Off the Disk Array
, the status of the disk array system becomes backup status when the disk array system is
stopped. If the backup fails, the storage system information is lost and the status of the disk array
system becomes one of the following six statuses.
Activity
Synchronization
Pair Status
Separate
Separated
All spaces are different. There is no change in
the status.
Separating
The status becomes fault, where copying is
stopped.
Replicate
Replicating
All spaces are different. Replication is
automatically restarted from the beginning.
There is no change in the status.
Synchronized
Restore
Restoring
The status becomes fault, where copying is
stopped.
Synchronized
All spaces are different. Replication is
automatically restarted from the beginning.
There is no change in the status.
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Страница 40: ...Release 6 0 40 User Guide Chapter 1 Overview 1 2 1 4 Controller CONT ...
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Страница 75: ...Release 6 0 75 User Guide Chapter 3 Installing the Disk Array System Figure 3 10 Securing Unit 2 ...
Страница 88: ...Release 6 0 88 User Guide Chapter 4 NEC Storage Manager Figure 4 1 Example of Recommended Configuration ...
Страница 125: ...Release 6 0 125 User Guide Chapter 4 NEC Storage Manager d Click Login to open the main screen Figure 4 26 Main Screen ...
Страница 194: ...Release 6 0 194 User Guide Chapter 6 Initializing a Disk Array iSCSI Figure 6 16 Hot Spare Bind View Display ...
Страница 260: ...Release 6 0 260 User Guide Chapter 8 Installing Optional Parts Figure 8 12 Removing the DIMMs ...
Страница 388: ...Release 6 0 388 User Guide Appendix F How to Set Check Application Server Linux iSCSI Figure F 3 Configuration Example ...
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