6.0.1

Procedure
1 Browse to the host in the vSphere Web Client navigator.
2 Click the Manage tab, and click .
3 Under System, click Advanced System .
4 Under Advanced System Seings, select the Misc.APDHandlingEnable parameter and click the Edit
icon.
5 Change the value to 0.
If you disabled the APD handling, you can reenable it when a device enters the APD state. The internal APD
handling feature turns on immediately and the timer starts with the current timeout value for each device in
APD.
Change Timeout Limits for Storage APD
The timeout parameter controls how many seconds the ESXi host will retry nonvirtual machine I/O
commands to a storage device in an all paths down (APD) state. If needed, you can change the default
timeout value.
The timer starts immediately after the device enters the APD state. When the timeout expires, the host
marks the APD device as unreachable and fails any pending or new nonvirtual machine I/O. Virtual
machine I/O will continue to be retried.
The default timeout parameter on your host is 140 seconds. You can increase the value of the timeout if, for
example, storage devices connected to your ESXi host take longer than 140 seconds to recover from a
connection loss.
N If you change the timeout value while an APD is in progress, it will not eect the timeout for that
APD.
Procedure
1 Browse to the host in the vSphere Web Client navigator.
2 Click the Manage tab, and click .
3 Under System, click Advanced System .
4 Under Advanced System Seings, select the Misc.APDTimeout parameter and click the Edit icon.
5 Change the default value.
You can enter a value between 20 and 99999 seconds.
Check the Connection Status of a Storage Device
Use the esxcli command to verify the connection status of a particular storage device.
In the procedure, --server=server_name species the target server. The specied target server prompts you
for a user name and password. Other connection options, such as a conguration le or session le, are
supported. For a list of connection options, see Geing Started with vSphere Command-Line Interfaces.
Prerequisites
Install vCLI or deploy the vSphere Management Assistant (vMA) virtual machine. See Geing Started with
vSphere Command-Line Interfaces. For troubleshooting, run esxcli commands in the ESXi Shell.
Procedure
1 Run the esxcli --server=server_name storage core device list -d=device_ID command.
vSphere Storage
130 VMware, Inc.