Veritas Volume Manager 5.0 Administrator's Guide (September 2006)

85Administering disks
Discovering and configuring newly added disk devices
Note: If any EMCpower discs are configured as foreign discs, use the vxddladm
rmforeign
command to remove the foreign definitions, as shown in this example:
# vxddladm rmforeign blockpath=/dev/dsk/emcpower10 \
charpath=/dev/rdsk/emcpower10
To allow DMP to receive correct enquiry data, the Common Serial Number (C-bit)
Symmetrix Director parameter must be set to enabled.
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. The DDL is administered using the
vxddladm utility, which can be used 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 disks that are supported in the DISKS (JBOD) category.
■ Add disks from different vendors to the DISKS category.
■ Remove disks from the DISKS category.
■ Add disks as foreign devices.
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 all
Note: Use this command to obtain values for the vid and pid attributes that are used
with other forms of the vxddladm command.
To display more detailed information about a particular array library, use this form of the
command:
# vxddladm listsupport libname=library_name.sl