File systems and file provisioning groups

View the information that is shown about file systems and file provisioning groups in file storage systems.

To view information about the file systems or file provisioning groups that are associated with a storage system, click File Systems or File Provisioning Groups. The type of the storage system determines which of these components can be viewed.

A file provisioning group is a logical container on a HPE 3PAR StoreServ Storage system that holds a virtual file server. Each file provisioning group holds one virtual file server, and in this way provides the file system resources on a storage system.

The following information is shown about the file systems:

Available Inodes

The number of inodes that are available in a file system.

Available Capacity (GiB)

The amount of storage capacity that is available (not allocated) on a file system.

Custom Tag 1, 2, and 3

Any user-defined text that is associated with the file system. This text can be included as a report column when you generate reports for the file system. To edit the custom tags for a file system, right-click the file system in the list and select View Properties. On the properties notebook, click Edit.

Creation Name

The file system name on the IBM Storage Scale cluster that owns the file system. If the file system is mounted from the current cluster, no value is shown. This information is available only for IBM Storage Scale storage systems.

To view information about the file system, such as NSDs, quotas, filesets, and pools, click the name of the file system.

External Pool Used Capacity (GiB)

The capacity that is migrated from the file system to external pools. This value represents the capacity that is used by active data (migrated and pre-migrated) only. Active data is data that has corresponding stub files on the GPFS file system.

Tip: To view information about the inactive data in external pools, go the details page for an IBM Storage Scale storage system and click File System Pools. The value for External Used Capacity includes active and inactive data.

Availability: IBM Storage Scale.

Filesets

The filesets that are contained in a file system. A fileset is a hierarchical grouping of files that is managed as a unit for balancing workload across a cluster. If a file system contains only one fileset, the unique name of the fileset is provided. If a file system contains more than one fileset, the number of filesets is provided.

For IBM Storage Scale, no value is shown if the file system is mounted from an IBM Storage Scale cluster that is not monitored.

File System Type

The type of file system.

Internal Used Capacity (%)

(Previously known as Used Space) The percentage of capacity that is used on the file systems that are associated with the resource. The following formula is used to calculate this value:

[(File System Used Capacity ÷ File System Capacity) × 100]

For IBM Storage Scale, the capacity that is used by the snapshots of the file system is included in the Internal Used Capacity value.

Internal Used Capacity (GiB)

The amount of storage space that is unavailable (allocated) on a file system. For IBM Storage Scale, this value does not include the space that is used by migrated data on external pools.

NSDs

The name of the Network Shared Disk (NSD) that contains the file system. If the file system is on one NSD, the unique name of the NSD is shown. If the file system is on two or more NSDs, the number of NSDs is shown.

Owning Cluster

The name of the IBM Storage Scale cluster that owns the file system. This information is available only for IBM Storage Scale storage systems.

The file system can be mounted from the current IBM Storage Scale cluster or a related cluster. If the related cluster is monitored, click the name of the cluster to view information about the IBM Storage Scale cluster.

Physical Capacity (GiB)

The raw capacity of the partition where a file system resides.

Pools

The storage pool that contains the file system. If a file system is on only one storage pool, the unique name of the storage pool is shown. If the file system is on two or more storage pools, the number of storage pools is shown.

For IBM Storage Scale, no value is shown if the file system is mounted from an IBM Storage Scale cluster that is not monitored.

Quotas

The quotas that are associated with the file system. Quotas restrict the number of files that are created and the amount of file system space that is used. If only one quota is associated with the file system, the name of the quota is shown. If there is more than one quota, the number of quotas is shown.

For IBM Storage Scale, no value is shown if the file system is mounted from a related IBM Storage Scale cluster that is not monitored.

Shortfall (%)

The percentage of migrated data in external pools that does not fit into the available capacity on the file system. The shortfall represents the relative risk of not having enough internal file system capacity if you recall all data from the associated external pools. The higher the percentage, the higher the amount of migrated data that does not fit.

Tip: Only the capacity that is used by migrated data in external pools is included in the calculation for shortfall. Pre-migrated data is not included because it exists in both the internal and external pools.

To calculate shortfall, the following formula is used:

[(External Pool Migrated Data − Available Capacity
) ÷ External Pool Migrated Data] × 100

For example, if the available capacity on a file system is 200 GiB, but the used capacity of migrated data on external pools is 500 GiB, the shortfall percentage is 60% (300 GiB).

[(500 − 200)÷ 500] × 100 = 60%

If the file system has sufficient available capacity to contain all the migrated data in external pools, no shortfall exists. For example, if the available capacity on a file system is 500 GiB, and the used capacity in external pools is only 200 GiB, the shortfall is 0%.

Availability: IBM Storage Scale.

Snapshot Space (GiB)

The amount of space that is used by all of the snapshots of the file system. This value includes the snapshot space for filesets within the file system.

Snapshots

The snapshots of the file system. If there is only one snapshot of the file system, the name of the snapshot is shown. If there is more than one snapshot of the file system, the number of snapshots is shown.

For IBM Storage Scale, no value is shown if the file system is mounted from an IBM Storage Scale cluster that is not monitored.

Storage Virtual Machine

The storage virtual machine (SVM) to which the file system belongs. An SVM is a logical entity that is used to serve data to clients and hosts.

Availability: NetApp ONTAP 9 storage systems.

Used Inodes

The number of used inodes on a file system. An inode is the internal structure that describes the individual files or directories in the file system metadata. An inode contains the node, type, owner, and location of a file or directory.

Availability: All storage systems.