vSphere Storage - ESXi 5.1 - Documentation - VMware

2 In the Paths panel, right-click the path to disable, and select Disable.
3 Click OK to save your settings and exit the dialog box.
You can also disable a path from the adapter’s Paths view by right-clicking the path in the list and selecting
Disable.
Disable Paths in the vSphere Web Client
You can temporarily disable paths for maintenance or other reasons.
You disable a path using the Paths panel. You have several ways to access the Paths panel, from a datastore,
a storage device, or an adapter view. This task explains how to disable a path using a storage device view.
Procedure
1 Browse to the host in the vSphere Web Client navigator.
2 Click the Manage tab, and click Storage.
3 Click Storage Devices.
4 Select the storage device whose paths you want to disable and click the Paths tab.
5 Select the path to disable and click Disable.
Managing Storage Paths and Multipathing Plug-Ins
Use the esxcli commands to manage the PSA multipathing plug-ins and storage paths assigned to them.
You can display all multipathing plug-ins available on your host. You can list any third-party MPPs, as well
as your host's NMP and SATPs and review the paths they claim. You can also define new paths and specify
which multipathing plug-in should claim the paths.
For more information about commands available to manage PSA, see the Getting Started with vSphere Command-
Line Interfaces.
Multipathing Considerations
Specific considerations apply when you manage storage multipathing plug-ins and claim rules.
The following considerations help you with multipathing:
Chapter 20 Understanding Multipathing and Failover
n If no SATP is assigned to the device by the claim rules, the default SATP for iSCSI or FC devices is
VMW_SATP_DEFAULT_AA. The default PSP is VMW_PSP_FIXED.
n When the system searches the SATP rules to locate a SATP for a given device, it searches the driver rules
first. If there is no match, the vendor/model rules are searched, and finally the transport rules are searched.
If no match occurs, NMP selects a default SATP for the device.
n If VMW_SATP_ALUA is assigned to a specific storage device, but the device is not ALUA-aware, no claim
rule match occurs for this device. The device is claimed by the default SATP based on the device's transport
type.
n The default PSP for all devices claimed by VMW_SATP_ALUA is VMW_PSP_MRU. The VMW_PSP_MRU
selects an active/optimized path as reported by the VMW_SATP_ALUA, or an active/unoptimized path
if there is no active/optimized path. This path is used until a better path is available (MRU). For example,
if the VMW_PSP_MRU is currently using an active/unoptimized path and an active/optimized path
becomes available, the VMW_PSP_MRU will switch the current path to the active/optimized one.
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