ESXi - 6.7 storage

VMKernel system properties and commands for configuring properties of the kernel core system and related system services.

core

adapter

• list

List all the SCSI Host Bus Adapters on the system.

• rescan

Rescan SCSI HBAs to search for new Devices, remove DEAD paths and update path state. This operation will also run an claim operation equivalent to the claimrule run command and a filesystem rescan.

capabilities

• list

List the capabilities of the SCSI HBAs in the system.

device

• list

List the devices associated with HBAs.

stats

• get

List the SCSI stats for the SCSI Host Bus Adapters in the system.

claiming

• autoclaim

Control the automatic PSA (path/device) claiming code allowing the disabling of the automatic claiming process or re-enabling of the claiming process if it was previously disabled. By default the automatic PSA claiming process is on and should not be disabled by users unless specifically instructed to do so.

• reclaim

Attempt to unclaim all paths to a device and then run the loaded claimrules on each of the paths unclaimed to attempt to reclaim them.

• unclaim

1) Unclaim a path or set of paths, disassociating them from a PSA plugin. NOTES: It is normal for path claiming to fail especially when unclaiming by plugin or adapter. Only inactive paths with no I/O will be able to be unclaimed. Typically the ESXi USB partition and devices with VMFS volumes on them will not be unclaimable. Also NOTE unclaiming will not persist and periodic path claiming will reclaim these paths in the near future unless claim rules are configured to mask the path.

2) Detach a (set of) filter(s) from one or more devices.

claimrule

• list

List all the claimrules on the system.

• add

Add a claimrule to the set of claimrules on the system.

• convert

Convert ESX 3.x style /adv/Disk/MaskLUNs LUN masks to Claim Rule format.
WARNING: This conversion will not work for all input MaskLUNs variations! Please inspect the list of generated claim rules carefuly, then if the suggested LUN mask claim rules are correct use the --commit parameter to write the list to the config file.

• load

Load path claiming rules from config file into the VMkernel.

• move

Move a claimrule from one rule id to another

• remove

Delete a claimrule to the set of claimrules on the system.

• run

Execute path claiming rules.

device

• list

List the devices currently registered with the PSA.

• purge

Removes storage devices which have not been seen in some time interval.

• set

Provide control to allow a user to modify a SCSI device's state.

• setconfig

Set device configuration

capacity

• list

List capacity information for the known storage devices.

detached

• list

Lists all devices that were detached manually by changing their state on the system.

• remove

Provide control to allow a user to remove Detached devices from the persistent detached device list.

inquirycache

• list

List inquiry cache information for the known storage devices.

• set

Manipulate inquiry cache settings of storage devices.

latencythreshold

• list

List latency sensitive threshold for the known storage devices.

• set

Set device's latency sensitive threshold (in milliseconds). If IO latency exceeds the threshold, new IOs will use default IO scheduler.

partition

• list

For a given device list all of the partitions

• showguid

For a given device list the GUID for GPT partitions

physical

• get

Get information about a physical storage device.

raid

• list

List the physical devices that compose a given logical device.

smart

• get

List Smart device parameters.

stats

• get

List the SCSI stats for SCSI Devices in the system.

uidmap

• list

Get a mapping between a device's primary UID and the alternative UIDs for that device on the system.

vaai

ats

• list

List the ATS VAAI attributes (as per SCSI standard) for the devices.

clone

• list

List the Clone VAAI attributes (as per SCSI standard) for the devices.

delete

• list

List the Delete VAAI attributes (as per SCSI standard) for the devices.

status

• get

List VAAI properties for devices currently registered with the PSA.

• set

Enable/Disable VAAI operations on local SCSI disks. (NOTE: A request to enable an operation will take effect only if the underlying device supports the VAAI operation.)

zero

• list

List the Zero VAAI attributes (as per SCSI standard) for the devices.

world

• list

Get a list of the worlds that are currently using devices on the ESX host.

path

• list

List all the SCSI paths on the system.

• set

Provide control to allow a user to modify a single path's state. This efffectively allows a user to enable or disable SCSI paths. The user is not able to change the full range of path states, but can toggle between 'active' and 'off'. Please NOTE changing the Path state on any path that is the only path to a given device is likely to fail. The VMkernel will not change the path's state if changing the state would cause an 'All paths down' state or the device is currently in use.

stats

• get

List the SCSI stats for the SCSI Paths in the system.

plugin

• list

List loaded PSA plugins on the system.

registration

• list

List modules currently registered with PSA.

• add

Register a plugin module with PSA.

• remove

UnRegister a plugin module with PSA.

filesystem

• list

List the volumes available to the host. This includes VMFS, NAS, VFAT and UFS partitions.

• automount

Request mounting of known datastores not explicitly unmounted.

• rescan

Scan storage devices for new mountable filesystems.

• mount

Connect to and mount an unmounted volume on the ESX host.

• unmount

Disconnect and unmount and existing VMFS or NAS volume. This will not delete the configuration for the volume, but will remove the volume from the list of mounted volumes.