lsdriveclass

Use the lsdriveclass command to display all drive classes in the system. Flash cards are not displayed in this view because they do not support distributed RAID levels.

Syntax

Read syntax diagramSkip visual syntax diagram lsdriveclass drive_class_id

Parameters

-delim delimiter
(Optional) Specify a delimiter to separate data in the output.
-nohdr
(Optional) Suppress the headings in the output.
-filtervalue attribute=value
(Optional) Specifies a list of one or more filters. Only objects with a value that matches the filter attribute value are displayed.
-filtervalue?
(Optional) Displays a list of valid filter attributes.
drive_class_id
(Optional) The identity of the drive class.

Description

This command displays all drive classes in a system. Drives are displayed if they are managed.
Note: Only SAS drives have classes that appear in this view.

This table provides the attribute values that can be displayed as output view data.

Table 1. lsdriveclass output
Attribute Possible Values
id Indicates the drive class ID.
RPM Indicates the speed of the drive class.
capacity Indicates the capacity of the drive class.
IO_group_id Indicates the I/O group ID associated with the drive class.
IO_group_name Indicates the I/O group name that is associated with the drive class.
tech_type Indicates the technology type of the drive class.
  • tier0_flash
  • tier1_flash
  • tier_enterprise
  • tier_nearline
  • tier_scm
block_size Indicates the block size of the drive class.
candidate_count Indicates the number of drives in the drive class that are in candidate state.
superior_count Indicates the total number of drives in this class and the drives that count as superior. (This value applies to distributed arrays created by using mkdistributedarray.)
total_count Indicates the total number of drives in the drive class. The drive state is irrelevant.
transport_protocol Indicates the transport protocol of the drive. The possible values are:
  • sas
  • nvme
compressed Indicates whether the drive is compressed.
physical_capacity For compressed drives, this output represents the total amount of physical storage on the drive. This value can be smaller than the logical capacity presented by the capacity value.

For non-compressed drives, the physical_capacity is the same as the logical capacity.