Top
ETERNUS SF Storage Cruiser V16.5 Operation Guide for Optimization Function
FUJITSU Storage
Chapter 4 Operation of Automated Storage Tiering > 4.3 Confirmation of Configuration Details of Tier Pool
PreviousNext

4.3 Confirmation of Configuration Details of Tier Pool

In order to review the configuration details of the Tier pool, it is necessary to confirm the detailed information of the Tier pool.
Refer to "Display Tier Pool" in the ETERNUS SF Web Console Guide for information on how to display the detailed information of the Tier pool.

The following items are items related to Automated QoS function. The content of each item is explained in "Chapter 5 Design of Automated QoS Function".

The items that are displayed are as listed below.

Items Displayed under Basics Tab

Item

Meaning

Pool Number

This is the Tier pool number.

Tier Pool Name

This is the Tier pool name.

Pool Status

This is the status of the Tier pool. One of the following is displayed:

  • Available

  • Exposed

  • Partially Readying

  • Readying

  • Maintenance

  • Broken

  • Data Lost

  • No Disk Path

  • Unknown

Total Capacity

This is the total capacity of the Tier pool.
This is displayed in units of MB, GB, TB, or PB according to the capacity.

Used Capacity

This is the used capacity of the Tier pool.
This is displayed in units of MB, GB, TB, or PB according to the capacity.

Alarm Status

This is the alarm status of the Tier Pool. One of the following is displayed:

  • Normal

  • Warning

  • Caution

  • N/A

Usage Proportion

This is the usage proportion (%) of the Tier Pool.
When the total capacity is 0, a hyphen (-) is displayed.

Operating Status

This is the operating status of Automated Storage Tiering.

Balancing:Level

This is the physical allocation balance of the Tier pool. If multiple sub-pools exist within the Tier pool, information for the sub-pool with the lowest balancing level is displayed.
If the physical allocation capacity for the device status cannot be confirmed, or if the balancing level for the Tier pool status (*1) cannot be obtained, a hyphen (-) is displayed.

  • High
    The physically allocated capacities are even between the RAID groups.

  • Middle
    The physically allocated capacity has some bias.

  • Low
    The physically allocated capacity has a large bias.

  • - (hyphen)
    The balancing level cannot be obtained.

Balancing:Status

Displays the processing status of the Tier pool balancing.
If a Tier pool balancing is not being performed, the physically allocated capacity for the device status cannot be confirmed, or if the balancing level for the Tier pool status cannot be obtained (*1), "Stop" is displayed.

  • Active
    All FTVs within the Tier pool are in a reserved status or operating normally.

  • Error
    FTVs stopped due to errors within the Tier pool exist.
    In this case, stop the Tier pool balancing process.

  • Stop
    The Tier pool balancing process is stopped.

Balancing:Progress

Displays the progress rate for the Tier Pool balancing process. For the automatic screen refresh, the progress rate is the latest. If the Tier pool balancing process is stopped, a hyphen (-) is displayed.

  • Progress rate: 0 to 100%

  • - (hyphen)

Shrinking

Displays the status of the deletion process for the RAID groups that constitute the Tier pool.

  • Executing
    The deletion process for any of the RAID groups that constitute the Tier pool is in progress.

  • Error
    The deletion process for any of the RAID groups that constitute the Tier pool terminated abnormally.
    In this case, stop the RAID group deletion process.

  • - (hyphen)
    The deletion process for all the RAID groups that constitute the Tier pool has not been executed or has already finished.
    Otherwise the storage device does not support the deletion function for the RAID groups that constitute the Tier pool.

Warning Threshold of Pool

This is the warning alarm notification threshold (%) of the Tier pool.

Caution Threshold of Pool

This is the caution alarm notification threshold (%) of the Tier pool.
When the caution alarm notification threshold is configured to be "disabled", a hyphen (-) is displayed.

Encryption Status

This is the encryption status of the Tier pool. One of the following is displayed:

  • Yes or Yes(CM)

  • No

Assigned CM

This is the Assigned CM of the Tier Pool.
"Auto" or the configured Assigned CM (separated with commas) is displayed.

*1: If the Tier pool Pool Status is not "Available", "Partially Reading", and "Exposed".

Items Displayed under Sub-Pool Tab

Item

Meaning

FTSP Number

This is the sub-pool number and the sub-pool to which it belongs.

FTSP Name

This is the sub-pool name.

Disk Type

This is the disk categorization. One of the following is displayed:

  • SSD

  • Online

  • Nearline

  • SED-SAS

  • Online SED

  • SSD SED

  • Nearline SED

  • Unknown

Reliability

This is the reliability of the sub-pool. One of the following is displayed:

  • High Reliability(RAID6-FR)

  • High Performance(RAID1+0)

  • High Capacity(RAID5)

  • High Reliability(RAID6)

  • Mirroring(RAID1)

  • Striping(RAID0)

  • Unknown

FTSP Status

This is the status of the sub-pool. One of the following is displayed:

  • Available

  • Exposed

  • Partially Readying

  • Readying

  • Maintenance

  • Broken

  • Data Lost

  • No Disk Path

  • Unknown

Total Capacity of FTSP

This is the total capacity of the sub-pool.
This is displayed in units of MB, GB, TB, or PB according to the capacity.

Used Capacity

This is the used capacity of the sub-pool.
This is displayed in units of MB, GB, TB, or PB according to the capacity.

Balancing Level

This is the physical allocation balance of the sub-pool.
If the physical allocation capacity for the device status cannot be confirmed, or if the balancing level for the Tier Pool status (*1) cannot be obtained, a hyphen (-) is displayed.

  • High
    The physically allocated capacities are even between the RAID groups.

  • Middle
    The physically allocated capacity has some bias.

  • Low
    The physically allocated capacity has a large bias.

  • - (hyphen)
    The physically allocated capacity cannot be confirmed depending on the device status. In addition, the balancing level cannot be obtained depending on the Tier pool status.

Shrinking

Displays the status of the deletion process for the RAID groups that constitute the sub-pool.

  • Executing
    The deletion process for any of the RAID groups that constitute the sub-pool is in progress.

  • Error
    The deletion process for any of the RAID groups that constitute the sub-pool terminated abnormally.
    In this case, stop the RAID group deletion process.

  • - (hyphen)
    The deletion process for all the RAID groups that constitute the sub-pool has not been executed or has already finished.
    Otherwise the storage device does not support the deletion function for the RAID groups that constitute the sub-pool.

RAID Group Number

This is the RAID group number included in the sub-pool.

Assigned CM

This is the Assigned CM of the RAID group.

RAID Group Status

This is the status of the RAID group.

Stripe Depth

This is the stripe depth. One of the following is displayed:

  • 64

  • 128

  • 256

  • 512

  • 1024

  • - (hyphen)

Deleting

Displays the status of deletion process for the RAID group.

  • Executing
    The deletion process for the RAID group is in progress.

  • Error
    The deletion process for the RAID group terminated abnormally.
    In this case, stop the RAID group deletion process.

  • - (hyphen)
    The deletion process for the RAID group has not been executed.
    Otherwise the storage device does not support the deletion function for the RAID groups that constitute the sub-pool.

*: When the Tier pool state is other than "Available", "Partially Reading" or "Exposed"

Items Displayed under Volume Tab

Item

Meaning

FTV Number

This is the volume number.

FTV Name

This is the volume name of the FTV.

Status

This is the status of the volume.
A status which is the same as that of the Open volume is displayed.

Encryption Status

This is the encryption status of the volume. One of the following is displayed:

  • Yes or Yes(CM)

  • No

Total Capacity

This is the logical capacity (MB) of the volume.

Used Capacity

This is the used capacity (MB).

Alarm Status

This is the alarm status of the volume. One of the following is displayed:

  • Normal

  • Caution

  • N/A

Caution Threshold of FTV

This is the threshold of ratio of FTV used capacity.

Priority FTSP

This is the name of the sub-pool configured as a prioritized assignment destination.
"Auto" is displayed when this is not specified.

Low Quota Share

This is the configured Low quota share.
When being omitted, a hyphen (-) is displayed.

Middle Quota Share

This is the configured Middle quota share.
When being omitted, a hyphen (-) is displayed.

High Quota Share

This is the configured High quota share.
When being omitted, a hyphen (-) is displayed.

Enable/Disable

This displays whether FTV is tuned by Automated QoS. One of the following is displayed:

  • Enable

  • Disable

Priority

This displays Automated QoS Priority. When this is not specified, a hyphen (-) is displayed.
One of the following is displayed:

  • Unlimited: I/O performance is not restricted.

  • High: I/O performance is high.

  • Middle: I/O performance is high but restrictions are possible if there are other higher priorities.

  • Low: I/O performance can be low and gives way to other priorities.

  • Hyphen (-): Not set

Target Response Time

This is a target response time (millisecond) of a volume used by the user.

Depending on whether the items below are specified or not, the displayed contents are varied as follows:

  • Automated QoS Priority is specified
    The target response time that was calculated automatically from the performance information and by priority is displayed.
    Depending on the conditions (such as read/write, and random/sequential) of the I/O load, the target response time for volumes that were set with a lower priority become smaller (the response becomes faster) than volumes that were set with a higher priority.

  • Target Response Time is specified
    Specified response time is displayed.

  • Other than those above
    A hyphen (-) is displayed.

Even if Automated QoS Priority is specified, a hyphen (-) is displayed in the following cases:

  • A period of time from when Automated QoS Priority is specified till the first performance tuning is performed (when completed, the time and value that was set in the FTV list screen is displayed).

  • The value in the Available column of the Volume tab is "No".

Available

This displays whether or not Automated QoS is available for the volume for which Automated QoS Priority or target response time is specified. When both are not specified, a hyphen (-) is displayed.

If Automated QoS is unavailable for the volume, clicking the link of the Automated QoS Available column on the Web Console displays a popup screen. On the screen, the reason that Automated QoS is unavailable for the volume can be found.

Any of the following messages is displayed. Their meanings and system administrator actions are as follows:

  • Automated QoS status of storage is not "Active".

    • Meaning of the message

      Automated QoS is not Active

    • System administrator action

      Start the Automated QoS function. For the startup method, refer to "Enable/Disable Automated QoS Function" in the ETERNUS SF Web Console Guide.

  • The volume is not subject to performance management.

    • Meaning of the message

      The volume is not monitored for performance management.

    • System administrator action

      Review the monitoring range of performance management so that the volume is monitored for performance management.
      If performance monitoring is stopped, start performance management.
      If performance monitoring is started, stop performance monitoring once and specify so that the volume is included in the list of monitored volumes and then restart performance monitoring. For the restart method, refer to "Start/Change Settings of/Stop Performance Monitoring" in the ETERNUS SF Web Console Guide.

  • The volume does not exist in End to End view list.

    • Meaning of the message

      Automated QoS is intended for volumes allocated to servers. If no volume is allocated, they are not displayed in the End to End view.

    • System administrator action

      Check the connection between disk storage systems and servers to allocate volumes to servers.

  • IOPS is 0 (zero).

    • Meaning of the message

      There is no I/O load on volumes. If there is no I/O load, the volume is not automatically tuned by Automated QoS.

    • System administrator action

      Execute the task using the volume.

Tuning Status

This displays currently tuned status by Automate QoS. One of the following is displayed:

Attaining

Tuning by Automated QoS and Automated Storage Tiering has been performed and the target is attained.
If the volume has the highest priority in the same Tier pool or target response time of the volume is 0 (zero. when there is no bandwidth limit), and also if "Bandwidth Limit" set to the storage device by the Automated QoS function reaches 0 (zero), it represents this value. Even if the target has been attained, the load varies at all times, so tuning may be continued.

Not Attaining

Though tuning has been performed by Automated QoS and Automated Storage Tiering, the target is not attained. Review the configuration to improve performance.

Working

Tuning is being performed by Automated QoS or Automated Storage Tiering.

Stopping

Tuning is not being performed by Automated QoS.

Hyphen (-)

Not target for bandwidth tuning.

Bandwidth Limit

This displays the bandwidth limit set to the storage device by Automated QoS.
One of the following is displayed:

  • 0: Unlimited

  • 1: 15,000 IOPS (800 MB/s)

  • 2: 12,600 IOPS (700 MB/s)

  • 3: 10,020 IOPS (600 MB/s)

  • 4: 7,500 IOPS (500 MB/s)

  • 5: 5,040 IOPS (400 MB/s)

  • 6: 3,000 IOPS (300 MB/s)

  • 7: 1,020 IOPS (200 MB/s)

  • 8: 780 IOPS (100 MB/s)

  • 9: 600 IOPS (70 MB/s)

  • 10: 420 IOPS (40 MB/s)

  • 11: 300 IOPS (25 MB/s)

  • 12: 240 IOPS (20 MB/s)

  • 13: 180 IOPS (15 MB/s)

  • 14: 120 IOPS (10 MB/s)

  • 15: 60 IOPS (5 MB/s)

Set Time

This displays the date and time at which the bandwidth was tuned last.
If the bandwidth was never tuned in the past, a hyphen (-) is displayed.

Tier Control

This displays whether or not I/O performance is automatically tuned by the use of both Automated QoS and Automated Storage Tiering.

PreviousNext
Copyright 2013-2017 FUJITSU LIMITED