Chapter 3 Volume Management
3.19 Snapshot Management for NAS Volumes
ETERNUS Web GUI User’s Guide (Settings)
Copyright 2015 FUJITSU LIMITED P2X0-1270-13ENZ0
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For details on the parameters for this function, refer to "A.3.11 Set Snapshot" (page 814).
For the factory default settings for this function, refer to "Appendix B Set Snapshot" (page 991)
.
The procedure to set Snapshot is as follows:
■ Initial Snapshot setting
1 Select which NAS user volumes to set Snapshot for and click [Set Snapshot] in [Action].
• Because this function uses SnapOPC+ generation management, the copy table size must be set in
advance.
The copy table size can be calculated using the formula (The table size for EC/REC and for OPC/QuickOPC/
SnapOPC/SnapOPC+ without OPC Restoration (S1)) described in "How to calculate the copy table size". The
number of generations is equivalent to the number of SnapOPC+ sessions. Refer to "7.6 Modify Copy
Table Size" (page 602) for details.
• To change the Snapshot destination SDV name or the storage destination RAID group, execute the
[Delete Snapshot] function and then use the [Set Snapshot] function again. If the [Delete Snapshot]
function is executed, Snapshots (SnapOPC+ sessions for all the generations), acquisition schedules for
Snapshots and Snapshot destination SDVs for all the generations are deleted. Refer to "3.19.2 Delete
Snapshot" (page 332) for details.
• If the NAS user volumes created in the encrypted TPP are selected and this function is executed, SDVs
encrypted by the CM are created as Snapshot destinations.
• For Snapshot destination SDVs, "File" is displayed for the usage of the volume list and "NAS Snapshot" is
displayed for the usage details. Refer to "Volume (Basic Information)" in "ETERNUS Web GUI User’s Guide
(Operation)" for details.
• Snapshot settings can be checked. Refer to "Snapshot" in "ETERNUS Web GUI User’s Guide (Operation)" for
details.
• The Snapshot status (SnapOPC+ session status) can be checked. Refer to "Advanced Copy (All Local
Sessions)" in "ETERNUS Web GUI User’s Guide (Operation)" for details.
• The Snapshot can be stopped. Refer to "3.19.4 Stop Snapshot" (page 334)
for details.
• After stopping the process, the Snapshot process can be restarted. Refer to "3.19.3 Start Snapshot" (page
333) for details.
• The Snapshot settings can be deleted. Refer to "3.19.2 Delete Snapshot" (page 332)
for details.
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