Enclosures

Enclosures are the metal structures in which various storage components are mounted, including control units, nodes, disks or drives, and power supplies.

View the information that is shown about enclosures in file storage systems:
Acknowledged
Shows whether a user marked the status of an enclosure as acknowledged. An acknowledged status indicates that its status was reviewed and is either resolved or can be ignored. An acknowledged status is not used when the status of the associated storage system is determined.
For example, if an enclosure has an error status, the related storage system also shows an error condition. If the error status of the enclosure is acknowledged, it changes to Error-Acknowledged. This acknowledged status is then treated as normal, and is used in evaluating the overall condition of the storage system. In this case, if the other internal resources of the storage system are also normal, the storage system condition is considered normal.
ID
The unique identifier assigned to the enclosure. Typically derived from system-specific identifiers such as the serial number. Used internally and for referencing the enclosure in APIs or diagnostics.
Last data collection
The timestamp of the most recent successful data collection for the enclosures. You can use this value to verify data freshness.
Machine type model (MTM)
The 7-character identifier for the enclosure. The first 4 characters are the machine type and the last 3 characters are the model, such as 2076-112, 2145-24F, 9840-AE2. Typically, MTM is shown on labels on the front and rear of the enclosure.
Name
The user-visible name of the enclosure. Often based on the enclosure identifier or configuration-defined label. Used to distinguish enclosures within the storage system.
Serial number
The manufacturer-assigned serial number of the enclosure. Uniquely identifies the physical hardware unit. Useful for support, warranty tracking, and inventory management.
Status
The status of an enclosure is determined by the most critical status of its native operation, power supplies, and canisters. For example, if an enclosure is operating normally, but one of its PSUs is offline, the overall status of the enclosure is Warning.
Use the status to determine the condition of the enclosure, and if any actions must be taken. Possible values are listed:
Normal (Online)
An enclosure, its PSUs, and its canisters are operating normally.
Warning
The enclosure is visible to the SAS network but not down both strands, or one of its canisters or PSUs is offline.
Error (Offline)
A managed enclosure is not visible to the SAS network, or its PSUs or canisters are offline. For troubleshooting information, see the IBM Docs for the related storage system.
Storage system
The name or identifier of the storage system that contains the enclosure.
Type
The type of enclosure. Possible values are Control, Expansion, and Storage. The model of storage system determines the type of enclosure that is present.
Version
The firmware or hardware version associated with the enclosure. Used to track compatibility, updates, and support requirements.