Volume Management

This section describes the default parameters for the volume management functions.

Create Volume

Screen Item Default
New Volume Use External Drive

"Enable" checkbox

Cleared
Deduplication Disable
Compression Disable
Allocation Thin
RAID Group / TPP Selection Automatic
Data Integrity Default
Automatic Setting Drive Type Online (*1)
RAID Level High Performance (RAID1+0) (*1)
Key Group Enable
Number of Volumes 1
Start of Suffix 0
Digits of Suffix 1
Encryption by CM Disable

Manual Setting (When creating Standard type volumes, SDVs, or SDPVs)

 Use all Largest Free Space

"Enable" checkbox

Cleared
Start of Suffix 0
Digits of Suffix 1
Volume No.

"Specify" checkbox

Cleared
Encryption by CM Disable
Number of Volumes 0
Checkbox to select an External RAID Group Cleared

Manual Setting (When creating TPVs or NAS Volumes)

 Start of Suffix 0
Digits of Suffix 1
Volume No.

"Specify" checkbox

Cleared
Number of Volumes 0

Manual Setting (When creating WSVs)

 Volume Information
  Use all Largest Free Space

"Enable" checkbox

Cleared
Number of Volumes 0
Start of Suffix 0
Digits of Suffix 1
Volume No.

"Specify" checkbox

Cleared
Wide Stripe Size Normal
Concatenation Order Automatic
Encryption by CM Disable
Select RAID Group Information
  Drive Type Online (*1)
RAID Level High Performance (RAID1+0) (*1)
Number of Member Drives 4 (*1)
Stripe Depth 64 KB
*1  :  The default value varies depending on the RAID groups registered in the storage system.

Rename Volume

Screen Item Default
Rename Setting Start of Suffix 0
Digits of Suffix 1

Modify Thin Provisioning Volume Threshold

Screen Item Default
Threshold Setting New Threshold 80 (%)

Set Allocation

Screen Item Default
Allocation Settings Allocation Thin

Start RAID Migration

Screen Item Default
Setting Volume Migration Destination RAID Group / Thin Provisioning Pool / Flexible Tier Pool
Volume Capacity Migration source volume capacity
FTSP Priority Automatic
Encryption Encryption setting for the migration source volume
Deduplication Deduplication status of the migration source volume
Compression Compression status of the migration source volume
Allocation Thin
Data Sync after Migration Automatic Stop
Start Optimizing TPV/FTV Capacity after migration Disable
Data Integrity Data protection method of the migration source volume
Select Migration Destination Select Migration Destination Cleared
Wide Striping Volume Setting Volume Information
  Wide Stripe Size Normal
Concatenation Order Automatic
Select RAID Group Information
  Drive Type Online (*1)
RAID Level High Performance (RAID1+0) (*1)
Number of Member Drives 4 (*1)
Stripe Depth 64 KB
Select RAID Group Select RAID Group Cleared
*1  :  The default value varies depending on the RAID groups registered in the storage system.

Modify Cache Parameters

Screen Item Default
Parameters Setting Cache Page Capacity "-" (hyphen) (Unlimited)
Prefetch Limit (PL) 8
Force Prefetch Mode (FP) Off
Multi Writeback Count (MWC)

Refer to Allowed Input for MWC When Using the Default Stripe Depth Value (Volume) in Allowed Input for MWC When Using the Default Stripe Depth Value and Allowed Input for MWC When the Stripe Depth Value Is Tuned (Volume) in Allowed Input for MWC When the Stripe Depth Value Is Tuned for details.
Prefetch Sequential Detect Count (PSDC)

5
Sequential Dirty Detect Count (SDDC)

5
Sequential Slope (SS)

128
Sequential Dirty Slope (SDS)

128
Sequential Parallel Multi I/O Count (SPMC)

  • For the ETERNUS DX60 S5

    2

  • For the ETERNUS DX100 S5

    4

  • For the ETERNUS DX200 S5

    8

  • For the ETERNUS DX500 S5

    8

  • For the ETERNUS DX600 S5

    12

  • For the ETERNUS DX900 S5

    12

  • For the ETERNUS DX8100 S4

    8

  • For the ETERNUS DX8900 S4

    12

  • For the ETERNUS AF150 S3

    4

  • For the ETERNUS AF250 S3

    8

  • For the ETERNUS AF650 S3

    12
Extreme Cache Enable

Set ALUA

Screen Item Default
ALUA Settings New ALUA Follow Host Response

Set Volume QoS

Screen Item Default
Volume QoS Setting New Bandwidth Limit Unlimited

Set Volume QoS Pattern

Screen Item Default
QoS Pattern Settings IOPS Refer to The Default Value for "QoS Pattern Settings" for the default value.
Throughput (MB/s) Refer to The Default Value for "QoS Pattern Settings" for the default value.

The Default Value for "QoS Pattern Settings"

No. IOPS Throughput (MB/s)
1 15000 IOPS 800 MB/s
2 12600 IOPS 700 MB/s
3 10020 IOPS 600 MB/s
4 7500 IOPS 500 MB/s
5 5040 IOPS 400 MB/s
6 3000 IOPS 300 MB/s
7 1020 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

Change Data Reduction Processing CM

Screen Item Default
Data Reduction Processing CM Settings New Data Reduction Processing CM Automatic

Set Snapshot

Screen Item Default
Snapshot Setting Name

  • "Use the volume name to setup snapshot" checkbox

    Selected

  • Name

    Blank (*1)
Number of Generations 7
Mode Automatic
Schedule
  Day of the Week All selected
Time

  • Time Interval

    24

  • When "Advanced Setting" is selected for "Time"

    All cleared
*1  :  For the snapshot destination SDVs, "Selected NAS user volume name" + "$snap_N" (N: Number of generations between 1 - 128) is automatically specified.