HP StoreAll Storage - Manual (Page 188)

Assigning segments to tiers
First determine the segments in the file system and then assign them to tiers. Use the following
command to list the segments:
ibrix_fs -f FSNAME –i
For example (the output is truncated):
[root@ibrix01a ~]# ibrix_fs -f ifs1 –i
.
.
SEGMENT OWNER LV_NAME STATE BLOCK_SIZE CAPACITY(GB)
------- -------- ------- ----- ---------- ------------
1 ibrix01b ilv1 OK 4,096 3,811.11 . . .
2 ibrix01a ilv2 OK 4,096 3,035.67
3 ibrix01b ilv3 OK 4,096 3,811.11
4 ibrix01a ilv4 OK 4,096 3,035.67
.
.
Use the following command to assign segments to a tier. The tier is created if it does not already
exist.
ibrix_tier -a -f FSNAME -t TIERNAME -S SEGLIST
For example, the following command creates Tier 1 and assigns segments 1 and 2 to it:
[root@ibrix01a ~]# ibrix_tier -a -f ifs1 -t Tier1 -S 1,2
Assigned segment: 1 (ilv1) to tier Tier1
Assigned segment: 2 (ilv2) to tier Tier1
Command succeeded!
NOTE: Be sure to spell the name of the tier correctly when you add segments to an existing tier.
If you spell the name incorrectly, a new tier is created with the incorrect tier name, and no error
is recognized.
Use ibrix_fs_tune to designate the primary tier. See “Defining the primary tier” (page 183) .
Displaying information about tiers
Use the following command to list the tiers in a file system. The -t option displays information for
a specific tier.
ibrix_tier -l -f FSNAME [-t TIERNAME]
For example:
[root@ibrix01a ~]# ibrix_tier -i -f ifs1
Tier: Tier1
===========
FS Name Segment Number Tier
------- -------------- ----
ifs1 1 Tier1
ifs1 2 Tier1
Tier: Tier2
===========
FS Name Segment Number Tier
------- -------------- ----
ifs1 3 Tier2
ifs1 4 Tier2
Creating a tiering policy
To create a rule for migrating data from a source tier to a destination tier, use the following
command:
188 Using data tiering