Viewing Volume Details

Describes how to retrieve and view volume information using either the Control System or the CLI.

Viewing Volume Details in the Control System

You can view the following in the Detail pane:

Table 1. SETTINGS AND AUDITING
Created By	Indicates the user who created the volume.
Volume Type	Indicates the type of volume. Value can be one of the following: Standard Mirror
Volume Name	Indicates the name of the volume.
Accountable Entity	Indicates the name of the accountable entity.
Volume Access	Indicates the type of access allowed on the volume. Value can be one of the following: Read/Write Read-only
Mounted	Indicates whether or not volume is mounted.
Mount Path	Indicates the mount path of the volume.
Data on Wire Encryption	Indicates whether (Yes) or not (No) on-wire encryption is enabled for the volume.
Data at Rest Encryption	Indicates whether (Yes) or not (No) data-at-rest encryption (DARE) is enabled for the volume.
Topology	Indicates the rack path to the volume.
Partially out of Topology	Indicates whether containers associated with the volume are outside the volume's main topology.
Last accessed	Indicates the date when the volume was last accessed.
Enable Auditing	Indicates whether auditing is enabled at the volume level.
Coalesce Interval	Indicates the interval of time (in minutes) used for logging multiple READ, WRITE, or GETATTR operations on one file from one client IP address, if auditing is enabled.

Table 2. REPLICATION (HOT)
Replication	Indicates the minimum (Min Target) and desired (Max Target) number of copies for the volume data.
Name Container Replication	Indicates the minimum (Min Target) and desired (Max Target) number of copies for the name container.
Optimize Replication	Indicates the basis for replication. Value can be one of the following: High throughput, or cascading replication Low latency, or star replication
Guarantee Min Replication	Indicates whether or not to enforce minimum number of copies.

NOTE The following is visible only if warm tiering is enabled for the volume.

Table 3. ERASURE CODING (WARM)
Topology	Indicates the topology of the erasure-coded volume.
Remote Target	Indicates the name of the tier.
Storage Policy Name	Indicates the name of the storage policy.
Policy Detail	Indicates the rules in the policy for offloading data.
Retention Duration after Recall	Indicates the period of time to keep recalled data in the hot tier.
Erasure Coding Scheme	Indicates the number of data and parity chunks.
Tier Purged	Indicates the amount of offloaded data.

NOTE The following is visible only if cold tiering is enabled for the volume.

Table 4. REMOTE ARCHIVING (COLD)
Remote Target	Indicates the name of the remote storage.
Storage Policy Name	Indicates the name of the storage policy.
Policy Detail	Indicates the rules in the policy for offloading data.
Retention Duration after Recall	Indicates the number of days to keep recalled data in the MapR cluster (hot tier).
Tier Purged	Indicates the amount of offloaded data.

ADMINISTRATIVE CONTROLS	Indicates the users and/or groups who: Have admin access and/or full control on the volume. Can perform one or more administrative operations such as create a dump file and backup the volume, restore and mirror the volume, edit the volume properties, and delete the volume.
USER ACCESS CONTROLS	Indicates the type of users — public, user, group, and/or role — that have and do not have access to volume data.

Quota	Indicates the amount of (advisory and hard) disk space allocated to the volume.
Graph	The graphs show: DISKUSAGE: The total amount of disk space allocated for the volume and the amount of disk space used by the volume and associated snapshots. CLUSTER DISKSPACE: The total amount of disk space on the cluster, the amount of disk space allocated and utilized by the volumes in the cluster, and the reserve limit.

Snapshot Schedule	Indicates the schedule for automatically creating a snapshot of the volume for the purpose of preserving the state of the volume.
Mirror Schedule	(Available only for mirror volumes) Indicates the schedule for automatically copying data (that has changed at the file-block level since the last data transfer) directly from the source volume to the mirror volume.
Offload Schedule	Indicates the schedule for automatically offloading data to the tier.

The basic command to retrieve volume information is:

maprcli volume info (-name <volume_name> | -path <volume_path>)

You must specify either name or path, but not both. For complete reference for this command, see volume info.