6.5

Table Of Contents
Using the Reclaim Troubleshooting Command
The esxcli storage core claiming reclaim troubleshooting command is intended for PSA plug-in
developers or administrators who troubleshoot PSA plug-ins.
The command performs the following tasks.
n
Aempts to unclaim all paths to a device.
n
Runs the loaded claim rules on each of the unclaimed paths to reclaim those paths.
It is normal for this command to fail if a device is in use.
I The reclaim command unclaims paths associated with a device.
You cannot use the command to reclaim paths currently associated with the MASK_PATH plug-in because --
device is the only option for reclaim and MASK_PATH paths are not associated with a device.
You can use the command to unclaim paths for a device and have those paths reclaimed by the MASK_PATH
plug-in.
Options Description
--device <device>
-d <device>
Name of the device on which all paths are reclaimed.
--help
Displays the help message.
Unclaiming Paths or Sets of Paths
The esxcli storage core claiming unclaim command unclaims a path or set of paths, disassociating those
paths from a PSA plug-in. The command fails if the device is in use.
You can unclaim only active paths with no outstanding requests. You cannot unclaim the ESXi USB partition
or devices with VMFS volumes on them. It is therefore normal for this command to fail, especially when you
specify a plug-in or adapter to unclaim.
Unclaiming does not persist. Periodic path claiming reclaims unclaimed paths unless claim rules are
congured to mask a path. See the vSphere Storage documentation for details.
I The unclaim command unclaims paths associated with a device. You can use this command to
unclaim paths associated with the MASK_PATH plugin but cannot use the --device option to unclaim those
paths.
Options Description
--adapter <adapter>
-A <adapter>
If --type is set to location, species the name of the HBA for the paths that you want to
unclaim. If you do not specify this option, unclaiming runs on paths from all adapters.
--channel <channel>
-C <channel>
If --type is set to location, species the SCSI channel number for the paths that you want
to unclaim. If you do not specify this option, unclaiming runs on paths from all channels.
--claimrule-class <cl>
-c <cl>
Claim rule class to use in this operation. You can specify MP (Multipathing), Filter, or
VAAI. Multipathing is the default. Filter is used only for VAAI. Specify claim rules for
both VAAI_FILTER and VAAI plug-in to use it.
--device <device>
-d <device>
If --type is set to device, aempts to unclaim all paths to the specied device. If there are
active I/O operations on the specied device, at least one path cannot be unclaimed.
--driver <driver>
-D <driver>
If --type is driver, unclaims all paths specied by this HBA driver.
Chapter 6 Managing Third-Party Storage Arrays
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