About this task
The Datasets window displays the properties of InfiniBox volumes.
Columns that are displayed by default:
- Name - the name of the volume.
- Pool - the pool that the volume belongs to.
- Consistency group - the consistency group that the volume belongs to.
- 'N/A' indicates that the volume does not belong to a consistency group.
- Size - the size specified during volume creation or the latest volume modification, and seen by the host SCSI initiator.
- This is the maximum amount of data the volume can occupy.
- The minimum size is 1 GB.
- Thin - indicates whether the system allocates only the physical disk space needed after data reduction ('Thin'), or allocates the entire volume size ('Thick').
- Allocated - the physical disk space allocated to the volume.
If the volume is Thick, the system allocates physical disk space for the entire volume size.
- For example, for a 1GB thick volume, Size would be 1GB and Allocated would be 1GB.
If the volume is Thin, the system allocates only the physical disk space needed after data reduction.
Data reduction can include zero-elimination and compression.
For example, for a 1GB thin volume, Size would be 1GB and Allocated would be between zero – 1GB. If the host wrote just zeros, Allocated would be zero.
- Snapshots - the sum of the allocated physical space of all the volume's descendants. The value of this property is zero (0) if there are no descendants.
Used - the total amount of the volume, in 64KB sections, that contains any written data.
This includes zeroes written for zero-elimination.
- At creation, snapshots have the same Used value as the source volume.
Important note: For volumes that are repurposed, the Used value can report much higher values than actually used by the host.
Compression - indicates if compression is enabled for data reduction.
- Data Reduction - the ratio between the data written to the system and the capacity it consumes after compression.
- Mapped/Exported - indicates if the volume is mapped to a host or cluster.
- Write Protected - indicates if the host can write into the volume.
- Lock State - indicates if the snapshot is locked. Refer to Locking a snapshot.
Note: This setting is sometimes referred to as 'secure lock'.
- Lock Expiry Date - when the locked snapshot will be unlocked.
- Replicated - indicates if the volume is replicated asynchronously or synchronously for the purpose of continuous availability or disaster recovery. 'Yes' indicates either a source or a target InfiniBox.
- Serial - the volume's serial number.
- Creation Date - Date and time of the creation of the volume.
- Updated At - Date and time of the latest volume modification.
- QoS - Name of the Quality of Service policy that sets performance limits for the volume.
- SSD Enabled - indicates if the volume can use the system's SSD cache.
Note: This setting is sometimes referred to as 'flash cache', 'flash enabled', or 'SSD cache'.
- In the GUI, click the Datasets icon in the left toolbar, and click the Volumes tab.
In the right-most column of the table heading, click the Settings icon, and select the properties to be included in the table.
The selected data is displayed in the table.
- You can customize the table display. Your changes remain in effect until you click a different icon in the left toolbar.
- Drag a column heading to reposition the table column.
- Drag a vertical separator in the heading row to resize the preceding column.
- Click a filter icon in a column heading to apply one or more filters.
- Click the arrow next to a column name to reorder the table entries.
- Click a volume to open a detailed view of its capacity counters and other properties.
Specifying the capacity units
Use the unit argument to specify the way the capacity fields of the output are displayed. Available units are:
- B – Byte. For example, 1000000192512
- G – Gigabyte. For example, 1000.00 G
- GB – same as G.
- GiB – Gibibyte. For example, 931.32 GiB
- T – Terabyte. For example, 1.000 T
- TB – same as T.
- TiB – Tebibyte. See GiB above. For example, 0.909 TiB