Logical Devices window
Use this window to view information about logical devices. Only the LDEVS assigned to the logged-on user are available.
Summary
|
Item |
Description |
|---|---|
|
Number of LDEVs |
|
|
Total Number of LDEVs |
Total number of LDEVs. |
|
Format/Shredding Task Status |
Formatting n %: Displays the progress of the format task. Preparing Quick Format n %: Displays the progress of the quick format preparing. Shredding n %: Displays the progress of the shredding. Verifying n % (x / y parity groups): Displays the progress of the verifying. n represents the progress of the verifying. x represents the number of parity groups that are completed of verifying. y represents the number of all parity groups that are to be verified. Blank: States that the format, shredding, or verifying is not being performed. If the configuration of the storage system is being changed, this field is also blank because the information cannot be collected. |
|
View Migration Plans* |
Open the View Migration Plans window. For details, see the Volume Migration User Guide. |
|
View Histories* |
Open the View Histories window. For details, see the Volume Migration User Guide. |
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*Available when you select Volume Migration. |
|
LDEVs tab
|
Item |
Description |
|---|---|
|
LDEV ID |
LDEV identifier, which is the combination of LDKC, CU, and LDEV. |
|
LDEV Name |
LDEV name. |
|
Status |
LDEV status.
|
|
PIN Status |
Displays the PIN status. |
|
V-VOL Management Task1 |
Displays the V-VOL management task being performed on a Dynamic Provisioning, Dynamic Tiering, V-VOL.
|
|
Capacity |
LDEV capacity. |
|
Number of paths |
Number of paths set for the LDEV. |
|
Provisioning Type |
Provisioning type to be assigned to the LDEV. Basic: Internal volume. DP: DP-VOL External: External volume. External MF: Migration volume. Snapshot: Thin Image volume. ALU: LDEV of the ALU attribution. |
|
Attribute |
Attribute of the volume indicating how the LDEV is being used. Command Device: Volume is a command device. Remote Command Device: Volume is a remote command device. JNL VOL: Volume is a journal volume. Pool VOL: Volume is a pool volume. The number in parentheses shows the pool identifier. Quorum Disk: Quorum disk for global-active device. ALU: LDEV of the ALU attribution. SLU: LDEV of the SLU attribution. Data Direct Mapping: LDEV of the data direct mapping attribute Hyphen (-): Volume other than the above. |
|
Access Attribute1 |
Displays the access attribute of the LDEV. |
|
Pool Name (ID) |
Pool name (pool identifier). |
|
Parity Group ID |
Parity group identifier. |
|
RAID Level |
RAID level. An asterisk (*) indicates that the parity group from which the LDEV is carved is interleaved (concatenated). |
|
MP Unit ID2 |
MP unit identifier. |
|
Encryption1 |
Displays information about the encryption information.
Caution: The data encryption is not ensured in the pool that has the Mixed encryption setting. To manage the data encryption securely, use the pool with an encryption setting of Enabled or Disabled.
|
|
Expanded Space Used1 |
Displays the allocation of the LDEV in the expanded area or the physical area. If accelerated compression is enabled, LDEVs are initially allocated in the physical area. Otherwise, LDEVs are allocated in the expanded area. Yes: The LDEV is allocated in the expanded area. No: The LDEV is allocated in the physical area. |
|
ALUA Mode |
Information about the ALUA mode. Enabled: The LDEV can be used in ALUA. Disabled: The LDEV cannot be used in ALUA. |
|
T10 PI1 |
T10 PI attribute setting (Enabled or Disabled) on LDEV. |
|
External Storage System1 |
Information about the external storage system. If LDEV is the DP-VOL of the data direct mapping attribute, the information about the external storage system to which LDEV is being mapped appears.
|
|
Data Direct Mapping1 |
Information about the data direct mapping.
|
|
Resource Group Name (ID)1 |
Resource group name and identifier of which this LDEV is a member. |
|
Virtual Storage Machine1 |
Information about the virtual storage machine.
|
|
Create LDEVs |
Opens the . |
|
Add LUN Paths |
Opens the LUN Paths window. |
|
Edit LDEVs |
Opens the Edit LDEVs window. |
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Format LDEVs3 |
Opens the Format LDEVs window. |
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Delete LDEVs3 |
Opens the Delete LDEVs window. |
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Shred LDEVs3 |
Opens the Shred LDEVs window. |
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Delete LUN Paths3 |
Opens the Delete LUN Paths window. |
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Edit Command Device3 |
Opens the Edit Command Devices window |
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Block LDEVs3 |
Opens the Block LDEVs window. |
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Restore LDEVs3 |
Opens the Restore LDEVs window. |
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Assign MP Unit3 |
Opens the Assign MP Unit window. |
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Delete UUIDs3 |
Opens the Delete UUIDs window. |
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Reclaim Zero Pages3 |
Opens the Reclaim Zero Pages window. |
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Stop Reclaiming Zero Pages3 |
Opens the Stop Reclaiming Zero Pages window. |
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Expand V-VOLs3 |
Opens the Expand V-VOLs window. |
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View Tier Properties3 |
Opens the View Tier Properties window. |
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Migrate Volumes3 |
Opens the Migrate Volumes window. For details, see Volume Migration User Guide. |
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Interrupt LDEV Task |
Select Shred to display the Interrupt Shredding Task window. |
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Force Delete Pairs |
|
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ALUs / SLUs3 |
Opens the ALUs / SLUs window. |
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Unbind SLUs3 |
Opens the Unbind SLUs window. |
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Export3 |
Opens a window where you can export configuration information listed in the table to a file that can be used for multiple purposes, such as backup or reporting. |
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1Does not appear by default. To display this item, change the Column Settings window. 2 If an MP unit is blocked due to a failure, the processing to be performed by the MP unit where the failure occurred is taken over by another normal MP unit. See "MP unit priorities after takeover" for priorities assumed by MP units after takeover. 3 Available when you click More Actions. |
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MP unit priorities after takeover
The following table shows the MP unit priorities after takeover.
|
MP unit blocked by failure |
Priority assumed by MP units after takeover |
||
|---|---|---|---|
|
1st |
2nd |
3rd |
|
|
MPU10 |
MPU11 |
MPU21 |
MPU20 |
|
MPU11 |
MPU10 |
MPU20 |
MPU21 |
|
MPU20 |
MPU21 |
MPU11 |
MPU10 |
|
MPU21 |
MPU20 |
MPU10 |
MPU11 |