NEC Storage Manager User Manual page 28

Chapter 1 Storage Overview
• RANK
<Supported disk arrays>
Other than disk arrays with pool
In the disk arrays indicated above, multiple physical disks put together to make up a virtual
medium for RAID is called RANK. Areas on RANK are controlled by using a continuous
address space.
The logical disks usually belong to one RANK, and a continuous space on one RANK is
assigned to them.
In a multi-RANK configuration, the logical disks belong to multiple RANKs, and continuous
spaces on the multiple RANKs are assigned to them.
For the types of RAID configurable as RANK, refer to C.2 "List of RANK-Configurable RAID
Types".
Logical Disk Configuration of RANK
RANK
PD00 PD01
Logical Disk Configuration of RANK (Striping)
RANK
PD00 PD01
PD02
PD02
Figure 1-15 Logical Configurations of Disk Arrays (RANK)
PD03 PD04
PD03 PD04
I-20
LD00
LD01
LD02
LD03
RANKn
...
LD00
LD01
LD02
LD03