NOTE:
•
You can select the pool configuration on a parity group basis.
•
The priority of the pool configuration is determined by these conditions:
Priority 1: There is no free space in the parity group and one LDEV exists in the
group.
Priority 2: There is no free space in the parity group and multiple LDEVs exist in the
group.
Priority 3: There is free space in the parity group and multiple LDEVs exist in the
group.
•
The following items are not displayed in the
Pool Configuration Patterns
table:
Parity groups with LDEVs that cannot be used as pool-VOLs.
Pool configuration patterns that contain more than 1,024 LDEVs.
6.
Click
OK
.
The information in the
Pool Configuration Patterns
table is applied to
Total Pool Volumes
and
Total Capacity
.
8.
In the
Pool Name
text box, enter the prefix and initial number of the pool. The pool name may
consist of up to 32 characters.
Prefix
: Case-sensitive, alphanumeric characters that begin the pool name.
Initial Number
: From 1 to 9 digits that follow the prefix.
9.
Click
Options
.
10. In the
Initial Pool ID
text box, type the number of the initial pool ID, from 0 to 127.
When you specify a pool ID that was previously registered, the smallest available ID is
displayed by default instead of the value you entered. If a pool ID unavailable, no number is
displayed.
11. In the
Subscription Limit
text box, enter an integer value from 0 to 65534 as the subscription
rate (%) for the pool.
If no number is entered, the subscription rate is set to unlimited.
12. In the
Warning Threshold
text box, enter an integer value from 1 to 100 as the rate (%) for
the pool. The default value is 70%.
13. In the
Depletion Threshold
text box, enter an integer value from 1 to 100 as the rate (%) for
the pool. The default value is 80%.
Enter a value that is greater than the value of the
Warning Threshold
.
14. In
Protect V-VOLs when I/O fails to Blocked Pool VOL
, select
Yes
or
No
. If
Yes
is selected,
when the pool-VOL is blocked, THP V-VOL is protected from reading and writing requests.
And at the same instant, the access attribute of the THP V-VOL is changed to the Protect
attribute.
15. In
Protect V-VOLs when I/O fails to Full Pool
, select
Yes
or
No
. If
Yes
is selected, when the
pool usage reaches the full size, THP V-VOL is protected from reading and writing requests.
And at the same instant, the access attribute of the THP V-VOL is changed to the Protect
attribute.
16. Configure Smart Tiers with the following steps.
From the
Tier Management
option, select
Auto
or
Manual
.
130 Configuring thin provisioning