Viewing CLDB Information

Describes how to view CLDB information from the CLDB page, and provides an explanation of each field that the page displays.

The CLDB page on the Control Panel provides information about the Container Location Database (CLDB). The CLDB is a management service that tracks container locations and the root of volumes.

To display the CLDB information page, log in to the Control System and go to the service information page for CLDB. Alternatively, you can use the following links to access the CLDB page:
  • For a secure cluster, access the CLDB view at https://<cldbmaster>:7443/cldb.jsp.
  • For an non-secure cluster, access the CLDB view at http://<cldbmaster>:7221/cldb.jsp.

The CLDB page displays the following information:

Container Location Database
Description: This section displays:
  • CLDB Mode: The CLDB node can be in one of the following modes: MASTER_READ_WRITE or SLAVE_READ_ONLY.
  • CLDB BuildVersion: Lists the build version.
  • Master for CLDB volume ready: Indicates whether the CLDB volume is ready for use.
  • CLDB Status: The status of the CLDB node.
  • Cluster Capacity: The storage capacity for the cluster.
  • Cluster Used: The amount of storage in use.
  • Cluster Available: The amount of available storage.
  • Cluster Used Percentage: The percentage of storage in use.
Active FileServers
Description: Displays information about the File Servers in use:
  • ServerID (Hex): The server's ID in hexadecimal notation.
  • ServerId: The server's ID in decimal notation.
  • HostPort: The IP address of the file server.
  • HostName: The hostname assigned to the file server.
  • Network Location: The network topology for the file server.
  • Last Heartbeat (s) : The timestamp for the last received heartbeat.
  • State: Is the file server ACTIVE (in use at present)
  • Capacity (MB): Total storage capacity on the file server.
  • Used (MB): Storage used on the file server.
  • Available (MB): Storage available on the file server.
  • In Transit (MB): Amount of data in transit
Active NFSServers
Description: Displays information about the NFS Servers in use:
  • ServerID (Hex): The server's ID in hexadecimal notation.
  • ServerId: The server's ID in decimal notation.
  • HostPort: The IP address of the NFS server.
  • HostName: The hostname assigned to the NFS server.
  • Last Heartbeat (s) : The timestamp for the last received heartbeat.
  • State: Is the NFS server ACTIVE (in use at present)
Volumes
Description: Displays information about the volumes on the container:
  • Volume Name: The name of the volume. Click the name of the volume to view the containers of the volume (including the container ID, size (in MB), container primary location and container locations, and replication type, which can be S for sequential and C for cascading).
  • Mount Point: The path in which the volume is mounted over NFS.
  • Mounted: Specifies whether volume is mounted. Value can be Y or N.
  • ReadOnly: Specifies whether volume is a read-only or read/write volume. Value can be Y (if volume is read-only) or N (if volume is read/write).
  • Volume ID: The Volume ID.
  • Volume Topology: The path describing the topology to which the volume is assigned.
  • Quota: The total size of the volume's quota. A quota of 0 means no quota is assigned.
  • Advisory Quota: The usage level that triggers a disk usage warning.
  • Used: Total size of data written to the volume after compression.
  • LogicalUsed: Actual size of data written to the volume.
  • Root Container ID: The ID of the root container.
  • Replication: The number of copies of the volume.
  • Guaranteed Replication: The minimum number of copies of the volume.
Accountable Entities
Description: Displays information about users and groups:
  • AE Name: The name of the accountable entity.
  • AE Type: The type of accountable entity.
  • AE Quota: The hard quota allocated to the accountable entity.
  • AE Advisory Quota: The advisory quota limit for the accountable entity.
  • AE Used: The amount of disk space used by the accountable entity.
Mirrors Information
Description: Contains a link to the Mirrors page, which displays information about volume mirrors:
  • Mirror Volume Name: The name of the mirror volume.
  • Mirror ID: The ID of the mirror volume used for the last successful mirroring. This ID starts with 1 and is incremented by 1 after each mirroring.
  • Mirror NextID: The ID to be used for the next mirroring operation.
  • Mirror Status: The status of the mirroring operation.
  • Last Successful Mirror Time: The date and time stamp from the last successful mirroring operation.
  • Mirror SrcVolume: The source volume for the mirror volume.
  • Mirror SrcRootContainerID: The source container ID for the mirror volume.
  • Mirror SrcClusterName: The source cluster name for the mirror volume.
  • Mirror SrcSnapshot: The source snapshot associated with the mirror volume.
  • Mirror DataGenerator Volume: The first volume that generates data (RW Volume) in the mirror chain.

    For example, if the mirror chain is A > B > C, then at C, the Mirror DataGenerator volume is A while the source volume is B.

  • Mirror DataGenerator snapshot time: The time at which the last snapshot for the Mirror DataGenerator Volume was generated.
Snapshots Information
Description: Contains a link to the Snapshots page, which displays information about snapshots:
  • Snapshot ID: The ID of the snapshot.
  • RW Volume ID: The ID of the standard (or read/write) volume associated with the snapshot.
  • Snapshot Name: The name of the snapshot.
  • Root Container ID: The ID of the container.
  • Snapshot Size: The size of the snapshot.
  • Snapshot InProgress: The status of the snapshot if it is currently in progress.
The page also displays a list of snapshot containers, and the following information about each:
  • Snapshot Container ID: The unique ID of the container.
  • Snapshot ID: The ID of the snapshot corresponding to the container.
  • RW Container ID: The corresponding source container ID.
  • Latest Epoch: The latest sequence number of the snapshot. Higher the number, the newest and most up-to-date is the snapshot.
  • SizeMB: The container size, in MB.
  • Container Master Location: The location of the container's primary replica.
  • Container Locations: The location of the data containers.
  • Inactive Locations: The location of inactive containers.
Storage Pools
Description: Displays information about storage pools:
  • SP: The ID of the storage pool.
  • ServerId: The ID of the server associated with the storage pool.
  • SpIdx: The index of the storage pool.
  • Last Heartbeat(s): TBD
  • Capacity: The total capacity of the storage pool.
  • Used: The amount of space used on the storage pool.
  • Disk Fullness Level (percentage): The percentage of disk space (associated with the storage pool) that is full.
  • InTransit: Indicates that some containers in the storage pool are being resynced.
  • OutTransit: Indicates that none of the containers in the storage pool are being resynced.
Active Container Moves
Description: Displays information about the containers being moved:
  • Container ID: The ID of the container being moved.
  • SizeMB: The size (in MB) of the container being moved.
  • From Location: The location from where the container is being moved.
  • From SP: The SP out of which the container is being moved.
  • To Location: The location to which the container is being moved.
  • To SP: The SP to which the container is being moved.