Individual virtual volume details

You can view virtual volume information for an individual virtual volume when you select it and view its details on the Virtual Volumes page of the VVols tab from the NetApp Element Management extension point.

The following details are in the General Details section:

Name
The name assigned to the virtual volume.
Volume ID
The ID of the underlying volume.
Virtual Volume ID
The UUID of the virtual volume.
Virtual Volume Type
The virtual volume type: Config, Data, Memory, Swap, or Other.
Status
The status of VVol task.
Storage Container
The UUID of the storage container that owns the virtual volume.
Size
Size of the volume in GB or GiB.
Access
The read/write permissions assigned to the virtual volume.

The following details are in the Efficiency section:

Compression
The compression efficiency score for the volume.
Deduplication
The deduplication efficiency score for the volume.
Thin Provisioning
The thin provisioning efficiency score for the volume.
Last Updated
The date and time of the last efficiency score.

The following details are in the Performance section:

Account ID
The unique account ID of the associated account.
Actual IOPS
Current actual IOPS to the volume in the last 500 milliseconds.
Async Delay
The length of time since the volume was last synced with the remote cluster.
Average IOP Size
Average size in bytes of recent I/O to the volume in the last 500 milliseconds.
Burst IOPS Size
The total number of IOP credits available to the user. When volumes are not using up to the Max IOPS, credits are accrued.
Client Queue Depth
The number of outstanding read and write operations to the volume.
Last Updated
The date and time of the last performance update.
Latency USec
The average time, in microseconds, to complete operations to the volume in the last 500 milliseconds. A "0" (zero) value means there is no I/O to the volume.
Non-Zero Blocks
Total number of 4KiB blocks with data after the last garbage collection operation has completed.
Performance Utilization
The percentage of cluster IOPS being consumed. For example, a 250K IOP cluster running at 100K IOPS would show 40% consumption.
Read Bytes
The total cumulative bytes read from the volume since the creation of the volume.
Read Latency USec
The average time, in microseconds, to complete read operations to the volume in the last 500 milliseconds.
Read Operations
The total read operations to the volume since the creation of the volume.
Thin Provisioning
The thin provisioning efficiency score for the volume.
Throttle
A floating value between 0 and 1 that represents how much the system is throttling clients below their maxIOPS because of re-replication of data, transient errors and snapshots taken.
Total Latency USec
The time, in microseconds, to complete read and write operations to a volume.
Unaligned Reads
For 512e volumes, the number of read operations that were not on a 4k sector boundary. High numbers of unaligned reads may indicate improper partition alignment.
Unaligned Writes
For 512e volumes, the number of write operations that were not on a 4k sector boundary. High numbers of unaligned writes may indicate improper partition alignment.
Volume ID
The system-generated ID for the volume.
Volume Size
Size of the volume in bytes.
Volume Utilization
A percentage value that describes how much the client is using the volume.

Possible Values:

  • 0 = Client is not using the volume
  • 100 = Client is using the max
  • >100 = Client is using the burst
Write Bytes
The total cumulative bytes written to the volume since the creation of the volume.
Write Latency USec
The average time, in microseconds, to complete write operations to a volume in the last 500 milliseconds.
Write Operations
The total cumulative write operations to the volume since the creation of the volume.
Zero Blocks
Total number of 4KiB blocks without data after the last round of garbage collection operation has completed.
Used Capacity
Percentage of used capacity.

The following details are in the Quality of Service section:

I/O Size
The size of the IOPS in KB.
Min IOPS
The minimum number of sustained inputs and outputs per second (IOPS) that the cluster provides to a volume. The Min IOPS configured for a volume is the guaranteed level of performance for a volume. Performance does not drop below this level.
Max IOPS
The maximum number of sustained IOPS that the cluster provides to a volume. When cluster IOPS levels are critically high, this level of IOPS performance is not exceeded.
Burst IOPS
The maximum number of IOPS allowed in a short burst scenario. If a volume has been running below the Max IOPS, burst credits are accumulated. When performance levels become very high and are pushed to maximum levels, short bursts of IOPS are allowed on the volume.
Max Bandwidth
The maximum bandwidth permitted by the system to process larger block sizes.

The following details are in the Virtual Machine section:

Virtual Machine ID
The UUID of the virtual machine.
VM Name
The name of the virtual machine.
Guest OS Type
Operating system associated with the virtual volume.
Virtual Volumes
List of virtual volumes UUIDs and VM names.

These headings are in the Bindings section:

Host
The UUID for the ESXi host that hosts virtual volumes and is known to the cluster.
Protocol Endpoint ID
Protocol endpoint IDs that correspond to each node in the cluster.
PE Type
Indicates the protocol endpoint type (SCSI is the only available protocol for NetApp Element software).

The following details are in the Tasks section:

Operation
The type of operation the task is performing.

Values:

  • unknown: The task operation is unknown.
  • prepare: The task is preparing a virtual volume.
  • snapshot: The task is creating a snapshot of a virtual volume.
  • rollback: The task is rolling back a virtual volume to a snapshot.
  • clone: The task is creating a clone of the virtual volume.
  • fastClone: The task is creating a fast clone of a virtual volume.
  • copyDiffs: The task is copying differing blocks to a virtual volume.
Status
The current status of the virtual volume task:

Values:

  • Error: The task has failed and returned an error.
  • Queued: The task is waiting to be run.
  • Running: The task is currently running.
  • Success: The task has completed successfully.
Task ID
The unique ID of the task.