VERITAS Volume Manager 3.5 Administrator's Guide (September 2004)

Chapter 2 71
This 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.
Removing Support for a Disk Array
To remove support for the vrtsda disk array, use the following command:
# swremove vrtsda
If the arrays remain physically connected to the host after support has
been removed, they are listed in the OTHER_DISKS category, and the
volumes remain available.
Administering the Device Discovery Layer
Dynamic addition of disk arrays is possible because of the existence of
the Device Discovery Layer (DDL) which is a facility for discovering
disks and their attributes that are required for VXVM and DMP
operations.
Administering the DDL is the role of the vxddladm utility which is an
administrative interface to the DDL. You can use vxddladm to perform
the following tasks:
• List the types of arrays that are supported.
• Add support for an array to DDL.
• Remove support for an array from DDL.
• List information about excluded disk arrays.
• List the supported JBODs.
• Add JBOD support for disks from different vendors.
• Remove support for a JBOD.
The following sections explain these tasks in more detail. For further
information, see the vxddladm(1M) manual page.
Listing Details of Supported Disk Arrays
To list all currently supported disk arrays, use the following command
# vxddladm listsupport