Thin Provisioning Management

This section describes the default parameters for the Thin Provisioning management functions.

Set Thin Provisioning

Screen Item Default
Thin Provisioning Settings Thin Provisioning
  • When the Unified Storage License is installed at the factory

    Enable

  • When the Unified Storage License is not installed at the factory

    Disable
Maximum Pool Capacity

  • For the ETERNUS DX60 S5

    64 TB

  • For the ETERNUS DX100 S5

    128 TB

  • For the ETERNUS DX200 S5

    256 TB

  • For the ETERNUS DX500 S5

    384 TB

  • For the ETERNUS DX600 S5

    512 TB

  • For the ETERNUS DX900 S5

    512 TB

  • For the ETERNUS DX8900 S4

    512 TB

  • For the ETERNUS AF150 S3

    128 TB

  • For the ETERNUS AF250 S3

    256 TB

  • For the ETERNUS AF650 S3

    512 TB

Create Thin Provisioning Pool

Screen Item Default
New Thin Provisioning Pool Create Mode Automatic
Automatic Setting Drive Type Online (*1)
RAID Level High Performance (RAID1+0)
Select Drives Minimize number of using drives
Encryption by CM Disable
Alarm

  • Warning

    90 (%)

  • Attention

    75 (%)
Deduplication Disable
Compression Disable
Manual Setting Drive Type Online (*1)
RAID Level

The current RAID level (*2)
Fast Recovery Configuration

  • When the RAID level is "High Reliability (RAID6-FR)"

    (4D+2P)x2+1HS

  • When the RAID level is not "High Reliability (RAID6-FR)"

    Blank
Encryption by CM Disable
Alarm

  • Warning

    90 (%)

  • Attention

    75 (%)
Deduplication Disable
Compression Disable
Add RAID Group Controlling CM Automatic
Checkbox to select a drive All cleared
Advanced Settings Stripe Depth 64 KB
Chunk Size

  • When Deduplication or Compression of the TPP is enabled

    21 MB

  • When Deduplication and Compression are disabled for the storage system or TPP

    336 MB
*1  :  The default value varies depending on the type of drives that are installed in the storage system and that can be used to create new TPPs.
*2  :  However, "High Performance (RAID1+0)" is displayed if the current RAID level is RAID1.

Rename Thin Provisioning Pool

Screen Item Default
Rename Setting Start of Suffix 0

Expand Thin Provisioning Pool

Screen Item Default
Setting Thin Provisioning Pool Expand Mode Automatic
Manual Setting (Add RAID Group) Controlling CM Automatic

Set Deduplication/Compression

Screen Item Default
Deduplication/Compression Settings Deduplication

  • If "Current Deduplication" is "Enable", "Error", or "-" (hyphen)

    Disable

  • If "Current Deduplication" is all "Disable"

    Enable
Compression

  • If "Current Compression" is "Enable", "Error", or "-" (hyphen)

    Disable

  • If "Current Compression" is all "Disable"

    Enable

Modify Threshold Thin Provisioning Pool

Screen Item Default
Threshold Setting Warning 90 (%)
Attention 75 (%)

Modify Cache Parameters (TPP)

Screen Item Default
Parameters Setting Multi Writeback Count (MWC) Refer to Allowed Input for MWC When Using the Default Stripe Depth Value (TPP) in Allowed Input for MWC When Using the Default Stripe Depth Value and Allowed Input for MWC When the Stripe Depth Value Is Tuned (TPP) in Allowed Input for MWC When the Stripe Depth Value Is Tuned for details.

Assign Eco-mode Schedule (Thin Provisioning Pool)

Screen Item Default
Eco-mode Schedule Settings Eco-mode Action

  • When no Eco-mode schedules are registered

    Drive always on

  • When Eco-mode schedules are registered

    Do not change