tier command

Purpose

Performs the tier-related operations in a shared storage pool.

Syntax

To create a tier in a shared storage pool:

tier -create [-clustername ClusterName] [-sp StoragePool] -tier TierName: PhysicalVolume ...

To create a tier in a shared storage pool, by passing physical volumes in a file:

tier -create [-clustername ClusterName] [-sp StoragePool] -file -tier TierName: FileName

To remove a tier from the shared storage pool:

tier -remove [-clustername ClusterName] [-sp StoragePool] -tier TierName

To modify the properties of a tier in a shared storage pool:

tier -modify [-clustername ClusterName] [-sp StoragePool] -tier TierName -attr Attribute=Value

To list tiers in a shared storage pool:

tier -list [-clustername ClusterName] [-sp StoragePool] [-verbose | -field FieldName ...] [-fmt delimiter [-header]]

Description

The tier command is used to perform tier-related operations in a shared storage pool.

Flags

Flag name	Description
-attr	Specifies a tier attribute and a value.
-clustername	Specifies the name of the cluster.
-create	Creates a new user tier in a shared storage pool.
-field	Specifies a list of fields to be displayed.
-file	Specifies that a file name has to be provided with the -create flag. The file must contain physical volume names separated by a white space.
-fmt	Separates the output with a user-specified delimiter character.
-header	Specifies to display field names in the formatted listing output.
-list	Lists tiers in a shared storage pool.
-modify	Modifies the properties of a tier.
-remove	Removes tier from a shared storage pool.
-sp	Specifies the name of a shared storage pool.
-tier	Specifies the name of a tier.
-verbose	Displays detailed information about the tier.

Examples

To create a tier, type the following command:

tier –create –tier prod_tier: hdisk3 hdisk4

The system displays the output as follows:

'prod_tier’ tier has been created successfully.

To create a tier with the names of the physical volume specified in a file, type the following command:
```
tier –create –file –tier test_tier: pvFile
```
The system displays the output as follows:
```
'test_tier’ tier has been created successfully.
```

To create a tier with the physical volume that is in use, type the following command:

tier –create –tier test_tier2: hdisk4 hdisk5

The system displays the output as follows:

‘test_tier2’ tier has been created with lesser capacity.
PV is currently in use hdisk4

To list the tiers from a shared storage pool, type the following command:

tier –list

The system displays the output as follows:

Add this example instaed of the highlighted one.
POOL_NAME: testsp
TIER_NAME SIZE(MB) FREE_SPACE(MB) MIRROR_STATE
Default    10112   8000         NOT_MIRRORED
prod_tier  10110   8000         SYNCED
test_tier  10110   8000         SYNCED
test_tier2 10110   8000         SYNCED

To list the tiers with detailed information, type the following command:

tier –list -verbose

The system displays the output as follows:

POOL_NAME: testsp
TIER_NAME: Default
TIER_TYPE: CO_MINGLED
TIER_SIZE(MB): 10112
FREE_SPACE(MB): 8000
OVERCOMMIT_SIZE(MB): 0
TOTAL_LUS: 5
TOTAL_LU_SIZE: 2112
FG_COUNT: 1
MIRROR_STATE: NOT_MIRRORED
ERASURE_CODE: NONE

POOL_NAME: testsp
TIER_NAME: prod_tier
TIER_TYPE: USER
TIER_SIZE: 10110
FREE_SPACE: 8000
OVERCOMMIT_SIZE: 0
TOTAL_LUS: 3
TOTAL_LU_SIZE: 2110
FG_COUNT: 2
MIRROR_STATE: SYNCED
ERASURE_CODE: MIRROR2

POOL_NAME: testsp
TIER_NAME: test_tier2
TIER_TYPE: USER
TIER_SIZE: 10110
FREE_SPACE: 8000
OVERCOMMIT_SIZE: 0
TOTAL_LUS: 3
TOTAL_LU_SIZE: 2110
FG_COUNT: 2
MIRROR_STATE: SYNCED
ERASURE_CODE: MIRROR2

POOL_NAME: testsp
TIER_NAME: test_tier
TIER_TYPE: USER
TIER_SIZE: 10110
FREE_SPACE: 8000
OVERCOMMIT_SIZE: 0
TOTAL_LUS: 3
TOTAL_LU_SIZE: 2110
FG_COUNT: 2
MIRROR_STATE: SYNCED
ERASURE_CODE: MIRROR2

To list the tiers in a formatted output, type the following command:

tier –list –fmt ,

The system displays the output as follows:

testsp,Default,10112,8000,NOT_MIRRORED
testsp,prod_tier,10110,8000,SYNCED
testsp,test_tier,10110,8000,SYNCED
testsp,test_tier2,10110,8000,SYNCED

To list detailed information about tiers in a formatted output, type the following command:

tier –list –fmt , -verbose

The system displays the output as follows:

testsp,SYSTEM,CO_MINGLED,10112,8000,0,5,2112,1,NOT_MIRRORED,NONE
testsp,prod_tier,USER,10110,8000,0,3,2110,1,SYNCED,MIRROR2
testsp,test_tier,USER,10110,8000,0,3,2110,1,SYNCED,MIRROR2
testsp,test_tier2,USER,10110,8000,0,3,2110,1,SYNCED,MIRROR2

To list only the tier name and the total logical units, type the following command:

tier –list –field tier_name total_lus

The system displays the output as follows:

TIER_NAME: SYSTEM
TOTAL_LUS: 5

TIER_NAME: prod_tier
TOTAL_LUS: 3

TIER_NAME: test_tier
TOTAL_LUS: 3

TIER_NAME: test_tier2
TOTAL_LUS: 3

To list only the tier name and the total logical units in a formatted output, type the following command:
```
tier –list –field tier_name total_lus –fmt
```
The system displays the output as follows:
```
SYSTEM,5
prod_tier,3
test_tier,3
test_tier2,3
```

To list the tiers in a formatted output with the header information, type the following command:

tier –list –fmt , -header

The system displays the output as follows:

POOL_NAME,TIER_NAME,SIZE,FREE_SPACE,MIRROR_STATEl
testsp,SYSTEM,10112,8000,NOT_MIRRORED
testsp,prod_tier,10110,8000,SYNCED
testsp,test_tier,10110,8000,SYNCED
testsp,test_tier2,10110,8000,SYNCED

Last updated: Wed, November 18, 2020