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Dell PowerVault ME5 Series Storage System CLI Reference Guide

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show pools

Description Shows information about linear and virtual pools. The command will show information for all pools by default, or you can use parameters to filter the output. The system can have a maximum of two virtual pools. The system can have a maximum of two virtual pools.
NOTE:For a virtual pool, new data will not be written to, or existing data migrated to, a degraded disk group unless it is the only disk group having sufficient available space for the data.
Minimum role monitor
Syntax

show pools

[type linear|virtual]

<[pool]>

type linear|virtual

Optional. Specifies whether to show information for linear pools or for virtual pools. If this parameter is omitted, information will be shown for both types.

<pool>

Optional. The name or serial number of the pool for which to show information. If this parameter is omitted, information is shown for all pools

Output Name

The name of the pool.

Serial Number

The serial number of the pool.

Class
  • Linear: Linear pool.
  • Virtual: Virtual pool.
Blocksize

The size of a block, in bytes.

Total Size

The total capacity of the pool.

Avail

The available capacity in the pool.

Snap Size

The pool capacity used by virtual snapshots

OverCommit
  • Enabled: The pool uses thin provisioning, which means that more capacity can be allocated to volumes than physically exists in the pool.
  • Disabled: The capacity allocated to volumes when they are created cannot exceed the physical capacity of the pool.
Disk Groups

The number of disk groups in the pool.

Volumes

The number of volumes in the pool.

Low Thresh

The low threshold for page allocation as a percentage of pool capacity. When this threshold is exceeded, event 462 will be logged with Informational severity.

Mid Thresh

The middle threshold for page allocation as a percentage of pool capacity. When this threshold is exceeded, event 462 will be logged. If the pool is not overcommitted, the event will have Informational severity. If the pool is overcommitted, the event will have Warning severity.

High Thresh

The high threshold for page allocation as a percentage of pool capacity. The threshold value is automatically calculated based on the available capacity of the pool minus 200 GB of reserved space. When this threshold is exceeded, event 462 will be logged. If the pool is not overcommitted, the event will have Informational severity. If the pool is overcommitted, the event will have Warning severity and the system will use write-through cache mode until page allocation drops back below this threshold.

Sec Fmt

The sector format of disks in the pool.

  • 512n: All disks use 512-byte native sector size. Each logical block and physical block is 512 bytes.
  • 512e: All disks use 512-byte emulated sector size. Each logical block is 512 bytes and each physical block is 4096 bytes. Eight logical blocks will be stored sequentially in each physical block. Logical blocks may or may not be aligned with physical block boundaries.
  • Mixed: The pool contains a mix of 512n and 512e disks. This is supported, but for consistent and predictable performance, do not mix disks of different sector size types (512n, 512e).
Health
  • OK
  • Degraded
  • Fault
  • N/A
  • Unknown
Reason

If Health is not OK, this field shows the reason for the health state.

Action

If Health is not OK, this field shows recommended actions to take to resolve the health issue.

Examples Show information about all pools.

# show pools

Basetypes pools

status

See also delete pools

set pool

show pool-statistics


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