NEC Storage Manager IS016-5E User Manual
Chapter 1 Installation Procedure
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Figure 1-4 shows an example of setting five pairs and one IV on the backup server as a control volume.
A control volume is used when a server issues control I/O to the relevant disk array. For details of a
control volume, refer to 1.5 “Control Volume Setting”, 3.9 “Control Volume”, and the “Data
Replication User’s Manual (Function Guide)”.
Figure 1-4 LD Configuration Example when a Control Volume Is Used (2000 Series)
• The PD group number for PD and RANK is 00.
• For LD00 to LD09, one LD is associated with one RANK (the whole area for one RANK is assigned
• For LD00 to LD09, one LD is associated with one RANK (the whole area for one RANK is assigned
to one LD).
• LD00 and LD05 are in RAID5 (4+P) configuration.
• LD01 to LD04 and LD06 to LD09 are in RAID1 configuration.
• LD00 to LD04 are used for the MV and LD05 to LD09 are for the RV.
• For LD0a, only one small-capacity LD is built with a RANK in RAID0 configuration.
• LD0a is used for an IV as the control volume.
• LD01 to LD04 and LD06 to LD09 are in RAID1 configuration.
• LD00 to LD04 are used for the MV and LD05 to LD09 are for the RV.
• For LD0a, only one small-capacity LD is built with a RANK in RAID0 configuration.
• LD0a is used for an IV as the control volume.
* This configuration is an example. Actual configuration should be determined based on your
business conditions.
For the disk arrays with pool, you can build a small-capacity logical disk for a control volume. For
details of how to build a control volume, refer to descriptions about building logical disks in the
“Configuration Setting Tool User’s Manual (GUI)”.
PD01
PD00
PD03
PD02
PD05
PD04
PD07
PD06
PD09
PD08
PD0b
PD0a
PD0d
PD0c
PD0e
PD11
PD10
PD13
PD12
PD15
PD14
PD17
PD16
PD19
PD18
PD1b
PD1a
PD1d
PD1c
PD1e
Spare Disks
LD00 LD01
LD02
LD03
LD04
RANK00 RANK01
RANK02
RANK03
RANK04
LD05
LD06
LD07
LD08
LD09
RANK05 RANK06
RANK07
RANK08
RANK09
MV
RV
Control Volume
LD0a
RANK0A