Fujitsu ETERNUS DX60 Operation Manual page 61

Information
For the configuration of the connection type, select "Access through volumes" or "Access through network".
Creating RAID Groups
When using the NAS snapshot, a NAS snapshot volume is created on the RAID group. The capacity is calculated according to the
following formula, and is required as free space within the RAID group.
RAID group free space = Total capacity of NAS volume for NAS snapshot * snapshot generation numbers
* 0.001
Skip this work if not creating a NAS snapshot or if a NAS snapshot volume on the RAID group has already been created.
Note
As shown below, if the RAID group where the NAS snapshot volume is created is shared, it may not be possible to set the maximum
number of snapshot generations.
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Where creating SDPV with
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Where creating a NAS snapshot volume for other NAS volumes
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When creating volumes for SAN
See
For the RAID group creation procedure, Refer to "Create RAID Group" in the
SDP Capacity Expansion
SDP capacity may need to be expanded in order to use the NAS snapshot.
Skip this work when not using NAS snapshot.
The physical capacity allocated for the snapshot captured with NAS snapshot is provided by creating an SDPV. Create so that the
total SDPV capacity becomes the capacity estimated below.
SDP additional capacity = total value for updated volume (*1) of NAS volumes for each generation
*1: NAS volume content that is changed between the time of one snapshot and the next snapshot.
When it is difficult to estimate size of the changed content, we recommend adding the following capacity. This is only a
recommended value, so it should be modified according to the operational state.
SDP additional capacity = Total capacity of NAS volumes for NAS snapshot * a number between 0.3 and
0.5
Point
SDPV and SDP are shared with SAN AdvancedCopy.
For this reason, when using SAN AdvancedCopy and NAS snapshot on the ETERNUS Disk storage system simultaneously, prepare
SDP capacity that is the total estimated volume for SAN and NAS.
See
Refer to "Create Volume" in the
"SDP Capacity Expansion"
ETERNUS SF Web Console Guide for the SDPV creation procedure.
ETERNUS SF Web Console Guide .
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