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Appendix D Notes on Use for Data Replication
28
D
D
D
.
.
.
3
3
3
.
.
.
2
2
2
D
D
D
e
e
e
t
t
t
a
a
a
i
i
i
l
l
l
e
e
e
d
d
d
C
C
C
o
o
o
m
m
m
b
b
b
i
i
i
n
n
n
a
a
a
t
t
t
i
i
i
o
o
o
n
n
n
o
o
o
f
f
f
R
R
R
A
A
A
I
I
I
D
D
D
C
C
C
o
o
o
n
n
n
f
f
f
i
i
i
g
g
g
u
u
u
r
r
r
a
a
a
t
t
t
i
i
i
o
o
o
n
n
n
This disk array series defines that the capacity unit of logical disks to be bound depends on the RAID
configuration. Therefore, RV may not be bound in RAID configuration different from that of MV.
Table D-3 shows the combinations of RAID configurations in which RV having the same capacity as
for MV can be bound.
Table D-3 Correspondence between the Numbers of MV and RV Data Disks in Each RAID Configuration
Number of RV Data Disks*
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1
~ ~
∆
~
∆ ∆ ∆
~
∆ ∆ ∆ ∆ ∆ ∆ ∆
2
~ ~
∆
~
∆ ∆ ∆
~
∆ ∆ ∆ ∆ ∆ ∆ ∆
3
{ { ~ {
∆
~
∆
{
∆ ∆ ∆
~
∆ ∆ ∆
4
~ ~
∆
~
∆ ∆ ∆
~
∆ ∆ ∆ ∆ ∆ ∆ ∆
5
{ {
∆
{ ~
∆ ∆
{
∆
~
∆ ∆ ∆ ∆ ∆
6
{ { ~ {
∆
~
∆
{
∆ ∆ ∆
~
∆ ∆ ∆
7
{ {
∆
{
∆ ∆
~ {
∆ ∆ ∆ ∆ ∆
~
∆
8
~ ~
∆
~
∆ ∆ ∆
~
∆ ∆ ∆ ∆ ∆ ∆ ∆
9
{ { { {
∆
{
∆
{ ~
∆ ∆
{
∆ ∆ ∆
10
{ {
∆
{ ~
∆ ∆
{
∆
~
∆ ∆ ∆ ∆ ∆
11
{ {
∆
{
∆ ∆ ∆
{
∆ ∆
~
∆ ∆ ∆ ∆
12
{ { ~ {
∆
~
∆
{
∆ ∆ ∆
~
∆ ∆ ∆
13
{ {
∆
{
∆ ∆ ∆
{
∆ ∆ ∆ ∆
~
∆ ∆
14
{ {
∆
{
∆ ∆
~ {
∆ ∆ ∆ ∆ ∆
~
∆
Number of MV Data Disks
15
{ { { { ~ {
∆
{
∆
{
∆
{
∆ ∆
~
*: The number of data disks is the number of physical disks, which are used to save data in RAID
configuration. The number of data disks is 1 in configuration of RAID1(1+1); it is 4 in
configuration of RAID5(4+P). In other words, if RAID is expressed as RAID0(n), RAID5(n+P),
or RAID10(n+n), “n” is equal to the number of data disks shown in Table D-3.
[How to read the table]
The table shows RAID configurations (depending on the number of data disks in actual operation) in
which RV having the same capacity as for MV can be bound. The symbols in the table are as follows:
~: RV can be bound.
{: Configuration Setting (GUI) may be unable to bind RV depending on the MV capacity. In this
case, use Configuration Setting (CLI) to bind RV.
∆: Both Configuration Setting (GUI) and Configuration Setting (CLI) may be unable to bind RV
depending on the MV capacity.
Examples:
1. With MV bound in configuration of RAID5(4+P)
Configuration Setting (GUI) can bind RV in configuration of RAID1, RAID5(2+P, 4+P, 8+P),
RAID10(2+2, 4+4), or RAID0(1).
2. With MV bound in configuration of RAID5(6+P)
Configuration Setting (GUI) can bind RV in configuration of RAID0(3), RAID5(3+P, 6+P,
12+P), or RAID10(3+3, 6+6). Configuration Setting (CLI) can bind RV in configuration of
RAID1, RAID5(2+P, 4+P, 8+P), or RAID10(2+2, 4+4).