Managing FAST VP using the CLI

Manage FAST VP pool settings

Fully Automated Storage Tiering for Virtual Pools (FAST VP) is a storage efficiency technology that automatically moves data between storage tiers within a pool based on data access patterns.

The following table lists the attributes for FAST VP pool settings.

Table 1. FAST VP pool attributes
Attribute	Description
Pool	Identifies the pool.
Status	Identifies the status of data relocation on the pool. Value is one of the following: Not started - Data relocation has not started. Paused - Data relocation is paused. Completed - Data relocation is complete. Stopped by user - Data relocation was stopped by the user. Active - Data relocation is in progress. Failed - Data relocation failed.
Relocation type	Type of data relocation. Value is one of the following: Manual - Data relocation was initiated by the user. Scheduled or rebalancing - Data relocation was initiated by the system because it was scheduled, or because the system rebalanced the data.
Schedule enabled	Identifies whether the pool is rebalanced according to the system FAST VP schedule. Value is one of the following: yes no
Start time	Indicates the time the current data relocation started.
End time	Indicates the time the current data relocation is scheduled to end.
Data relocated	The amount of data relocated during an ongoing relocation, or the previous relocation if a data relocation is not occurring. The format is: `<value>[suffix]` where: `value` - Identifies the size of the data relocated. `suffix` - Identifies that the value relates to the previous relocation session.
Rate	Identifies the transfer rate for the data relocation. Value is one of the following: Low - Least impact on system performance. Medium - Moderate impact on system performance. High - Most impact on system performance. Default value is medium. This field is blank if data relocation is not in progress.
Data to move up	The amount of data in the pool scheduled to be moved to a higher storage tier.
Data to move down	The amount of data in the pool scheduled to be moved to a lower storage tier.
Data to move within	The amount of data in the pool scheduled to be moved within the same storage tiers for rebalancing.
Data to move up per tier	The amount of data per tier that is scheduled to be moved to a higher tier. The format is: `<tier_name>:[value]` where: `tier_ID` - Identifies the storage tier. `value` - Identifies the amount of data in that tier to be move up.
Data to move down per tier	The amount of data per tier that is scheduled to be moved to a lower tier. The format is: `<tier_name>:[value]` where: `tier_ID` - Identifies the storage tier. `value` - Identifies the amount of data in that tier to be moved down.
Data to move within per tier	The amount of data per tier that is scheduled to be moved to within the same tier for rebalancing. The format is: `<tier_name>:[value]` where: `tier_ID` - Identifies the storage tier. `value` - Identifies the amount of data in that tier to be rebalanced.
Estimated relocation time	Identifies the estimated time required to perform the next data relocation.

View FAST VP pool settings

View FAST VP settings on a pool.

Format

/stor/config/pool/fastvp [–pool <value>] show

Object qualifier

Qualifier	Description
-pool	Type the ID of the pool.

Example

The following command lists the FAST VP settings on the storage system:

uemcli -d 10.0.0.1 -u Local/joe -p MyPassword456! /stor/config/pool/fastvp –show -detail

                          Storage system address: 10.0.0.1
Storage system port: 443
HTTPS connection

1: Pool                          = pool_1
   Relocation type               = manual
   Status                        = Active
   Schedule enabled              = no
   Start time                    = 2013-09-20 12:55:32
   End time                      = 2013-09-20 21:10:17
   Data relocated                = 100111454324 (100G)
   Rate                          = high
   Data to move up               = 4947802324992 (4.9T)
   Data to move down             = 4947802324992 (4.9T)
   Data to move within           = 4947802324992 (4.9T)
   Data to move up per tier      = Performance: 500182324992 (500G), Capacity:    1000114543245 (1.0T)
   Data to move down per tier    = Extreme Performance: 1000114543245 (1.0T),    Performance: 500182324992 (500G)
   Data to move within per tier  = Extreme Performance: 500182324992 (500G),    Performance: 500182324992 (500G), Capacity: 500182324992 (500G)
   Estimated relocation time     = 7h 30m

Change FAST VP pool settings

Modify FAST VP settings on an existing pool.

Format

/stor/config/pool/fastvp –pool <value> set [-async] -schedEnabled {yes | no}

Object qualifier

Qualifier	Description
-pool	Type the ID of the pool.

Action qualifier

Qualifier	Description
-async	Run the operation in asynchronous mode. Simultaneous commands, asynchronous or synchronous, may fail if they conflict in trying to manage the same system elements.
-schedEnabled	Specify whether the pool is rebalanced according to the system FAST VP schedule. Value is one of the following: yes no

Example

The following example enables the rebalancing schedule on pool pool_1:

uemcli -d 10.0.0.1 -u Local/joe -p MyPassword456! /stor/config/pool/fastvp -pool pool_1 set -schedEnabled yes

                          Storage system address: 10.0.0.1
Storage system port: 443
HTTPS connection

Pool ID = pool_1
Operation completed successfully.

Start data relocation

Start data relocation on a pool.

Format

/stor/config/pool/fastvp –pool <value> start [-async] [-rate {low | medium | high}] [-endTime <value>]

Action qualifier

Qualifier	Description
-async	Run the operation in asynchronous mode. Simultaneous commands, asynchronous or synchronous, may fail if they conflict in trying to manage the same system elements.
-pool	Type the ID of the pool.
-endTime	Specify the time to stop the data relocation. The format is: `[HH:MM]` where: HH — Hour. MM — Minute. Default value is eight hours from the current time.
-rate	Specify the transfer rate for the data relocation. Value is one of the following: Low — Least impact on system performance. Medium — Moderate impact on system performance. High — Most impact on system performance. Default value is the value set at the system level.

Example

The following command starts data relocation on pool pool_1, and directs it to end at 04:00:

uemcli -d 10.0.0.1 -u Local/joe -p MyPassword456! /stor/config/pool/fastvp -pool pool_1 start -endTime 04:00

                          Storage system address: 10.0.0.1
Storage system port: 443
HTTPS connection

Operation completed successfully.

Stop data relocation

Stop data relocation on a pool.

Format

/stor/config/pool/fastvp –pool <value> stop [-async]

Object qualifier

Qualifier	Description
-pool	Type the ID of the pool.

Action qualifier

Qualifier	Description
-async	Run the operation in asynchronous mode.

Example

The following command stops data relocation on pool pool_1:

uemcli -d 10.0.0.1 -u Local/joe -p MyPassword456! /stor/config/pool/fastvp –pool pool_1 stop

                          Storage system address: 10.0.0.1
Storage system port: 443
HTTPS connection

Operation completed successfully.

Manage FAST VP general settings

Fully Automated Storage Tiering for Virtual Pools (FAST VP) is a storage efficiency technology that automatically moves data between storage tiers within a pool based on data access patterns.

The following table lists the attributes for FAST VP general settings.

Table 2. FAST VP general attributes
Attribute	Description
Paused	Identifies whether the data relocation is paused. Value is one of the following: yes no
Schedule-enabled	Identifies whether the pool is rebalanced according to the system FAST VP schedule. Value is one of the following: yes no
Frequency	Data relocation schedule. The format is: `Every <days_of_the_week> at <start_time> until <end_time>` where: `<days_of_the_week>` - List of the days of the week that data relocation will run. `<start_time>` - Time the data relocation starts. `<end_time>` - Time the data relocation finishes.
Rate	Identifies the transfer rate for the data relocation. Value is one of the following: Low - Least impact on system performance. Medium - Moderate impact on system performance. High - Most impact on system performance. Default value is medium. This field is blank if data relocation is not in progress.
Data to move up	The amount of data in the pool scheduled to be moved to a higher storage tier.
Data to move down	The amount of data in the pool scheduled to be moved to a lower storage tier.
Data to move within	The amount of data in the pool scheduled to be moved within the same storage tiers for rebalancing.
Estimated scheduled relocation time	Identifies the estimated time required to perform the next data relocation.

Change FAST VP general settings

Change FAST VP general settings.

Format

/stor/config/fastvp set [-async] [-schedEnabled {yes | no}] [-days <value>] [-at <value>] [-until <value>] [-rate {low | medium | high}] [-paused {yes | no}]

Action qualifier

Qualifier	Description
-async	Run the operation in asynchronous mode.
-paused	Specify whether to pause data relocation on the storage system. Valid values are: yes no
-schedEnabled	Specify whether the pool is rebalanced according to the system FAST VP schedule. Valid values are: yes no
-days	Specify a comma-separated list of the days of the week to schedule data relocation. Valid values are: mon – Monday tue – Tuesday wed – Wednesday thu – Thursday fri – Friday sat – Saturday sun – Sunday
-at	Specify the time to start the data relocation. The format is: `[HH:MM]` where: HH – Hour MM – Minute Valid values are between 00:00 and 23:59. Default value is 00:00.
-until	Specify the time to stop the data relocation. The format is: `[HH:MM]` where: HH – Hour MM – Minute Valid values are between 00:00 and 23:59. Default value is eight hours after the time specified with the -at parameter.
-rate	Specify the transfer rate for the data relocation. Value is one of the following: low – Least impact on system performance. medium – Moderate impact on system performance. high – Most impact on system performance. Default value is medium.

Example

The following command changes the data relocation schedule to run on Mondays and Fridays from 23:00 to 07:00:

uemcli -d 10.0.0.1 -u Local/joe -p MyPassword456! /stor/config/fastvp set -schedEnabled yes -days "Mon,Fri" -at 23:00 -until 07:00

                          Storage system address: 10.0.0.1
Storage system port: 443
HTTPS connection

Operation completed successfully.

View FAST VP general settings

View the FAST VP general settings.

Format

/stor/config/fastvp show -detail

Example

The following command displays the FAST VP general settings:

uemcli -d 10.0.0.1 -u Local/joe -p MyPassword456! /stor/config/fastvp show -detail

                          Storage system address: 10.0.0.1
Storage system port: 443
HTTPS connection

1: Paused                              = no
   Schedule enabled                    = yes
   Frequency                           = Every Mon, Fri at 22:30 until 8:00
   Rate                                = high
   Data to move up                     = 4947802324992 (1.5T)
   Data to move down                   = 4947802324992 (1.5T)
   Data to move within                 = 4947802324992 (1.5T)
   Estimated scheduled relocation time = 7h 30m