You have made some changes to the vSCSI adapter settings and would like to activate those new settings without a reboot.  Here is how to do it.

 

 

Verify the settings have changed in the ODM.

lsattr -El vscsi1

rw_timeout       120         Virtual SCSI Read/Write Command Timeout   True

vscsi_err_recov  fast_fail   N/A                                       True

vscsi_path_to    30          Virtual SCSI Path Timeout                 True

 

lsattr -El vscsi2

rw_timeout       120         Virtual SCSI Read/Write Command Timeout   True

vscsi_err_recov  fast_fail   N/A                                       True

vscsi_path_to    30          Virtual SCSI Path Timeout                 True

 

Verify the running adapter has not changed.

lsattr -Pl vscsi1

rw_timeout       0            Virtual SCSI Read/Write Command Timeout   True

vscsi_err_recov  delayed_fail N/A                                       True

vscsi_path_to    0 Virtual    SCSI Path Timeout                         True

 

lsattr -El vscsi2

rw_timeout       0            Virtual SCSI Read/Write Command Timeout   True

vscsi_err_recov  delayed_fail N/A                                       True

vscsi_path_to    0            Virtual SCSI Path Timeout                 True

 

Verify you have more than one path Enabled to each disk.

lspath

Enabled hdisk0 vscsi1

Enabled hdisk0 vscsi2

 

Unconfigure the vSCSI adapter, but don't delete it.

We use the rmdev command with the -Rl flags, to recursively unconfigure the device and its children.

rmdev -Rl vscsi2

vscsi2 Defined

 

Verify the paths are Enabled and Defined.

lspath

Enabled hdisk0 vscsi1

Defined hdisk0 vscsi2

 

Reconfigure the vSCSI adapter and its children.

cfgmgr -l vscsi2

 

Verify the ODM (-E) settings match the running (-P) settings.

lsattr -El vscsi2

rw_timeout 120 Virtual SCSI Read/Write Command Timeout True

vscsi_err_recov fast_fail N/A True

vscsi_path_to 30 Virtual SCSI Path Timeout True

 

lsattr -Pl vscsi2

rw_timeout 120 Virtual SCSI Read/Write Command Timeout True

vscsi_err_recov fast_fail N/A True

vscsi_path_to 30 Virtual SCSI Path Timeout True

 

Verify you have more than one path Enabled to each disk.

lspath

Enabled hdisk0 vscsi1

Enabled hdisk0 vscsi2

 

Unconfigure the other vSCSI adapter, but don't delete it.

We use the rmdev command with the -Rl flags, to recursively unconfigure the device and its children.

rmdev -Rl vscsi1

vscsi1 Defined

 

Verify the paths are Defined and Enabled.

lspath

Defined hdisk0 vscsi1

Enabled hdisk0 vscsi2

 

Reconfigure the vSCSI adapter and its children.

cfgmgr -l vscsi1

 

Verify the ODM (-E) settings match the running (-P) settings.

lsattr -El vscsi1

rw_timeout 120 Virtual SCSI Read/Write Command Timeout True

vscsi_err_recov fast_fail N/A True

vscsi_path_to 30 Virtual SCSI Path Timeout True

 

lsattr -Pl vscsi1

rw_timeout 120 Virtual SCSI Read/Write Command Timeout True

vscsi_err_recov fast_fail N/A True

vscsi_path_to 30 Virtual SCSI Path Timeout True

 

 

You now have the new vSCSI adapter settings enabled without a reboot.

This works for other adapter types (Fibre Adapters) where you have more than one active path to the disk device.