Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

See Adding unsupported disk arrays to the DISKS category on page 94.
Disks in JBODs that do not fall into any supported category, and which are not
capable of being multipathed by DMP are placed in the OTHER_DISKS category.
Adding support for a new disk array
You can dynamically add support for a new type of disk array. The support comes
in the form of Array Support Libraries (ASLs) that are developed by Symantec.
Symantec provides support for new disk arrays through updates to the VRTSaslapm
depot. To determine if an updated VRTSaslapm depot is available for download,
refer to the hardware compatibility list tech note. The hardware compatibility list
provides a link to the latest depot for download and instructions for installing the
VRTSaslapm depot. You can upgrade the VRTSaslapm depot while the system is
online; you do not need to stop the applications.
To access the hardware compatibility list, go to the following URL:
http://entsupport.symantec.com/docs/330441
The new disk array does not need to be already connected to the system when the
VRTSaslapm depot is installed. If any of the disks in the new disk array are
subsequently connected, you need to trigger OS device discovery using the ioscan
command followed by the insf command. Then trigger DDL device discovery
using the vxdctl enable command.
See Adding new LUNs dynamically to a new target ID on page 202.
If you need to remove the latest VRTSaslapm depot, you can revert to the previously
installed version. For the detailed procedure, refer to the Veritas Volume Manager
Troubleshooting Guide.
Enabling discovery of new disk arrays
The vxdctl enable command scans all of the disk devices and their attributes,
updates the VxVM device list, and reconfigures DMP with the new device database.
There is no need to reboot the host.
Warning: This command ensures that Dynamic Multi-Pathing is set up correctly
for the array. Otherwise, VxVM treats the independent paths to the disks as
separate devices, which can result in data corruption.
To enable discovery of a new disk array
Type the following command:
# vxdctl enable
Administering disks
Discovering and configuring newly added disk devices
86