Managing the Configuration Daemon in VxVM

The VxVM configuration daemon (vxconfigd) provides the interface between VxVM commands and the kernel device drivers. vxconfigd handles configuration change requests from VxVM utilities, communicates the change requests to the VxVM kernel, and modifies configuration information stored on disk. vxconfigd also initializes VxVM when the system is booted.

The vxdctl command is the interface to the vxconfigd daemon.

You can use vxdctl to:

control the operation of the vxconfigd daemon
manage the initialization of the rootdg disk group configuration
manipulate the contents of the volboot file which contains a list of disks that have rootdg disk group configuration databases

If only simple disks exist in rootdg, the vxconfigd daemon cannot read the rootdg configuration without the existence of a /etc/vx/volboot file. The volboot file contains entries for disks that contain rootdg configuration databases. To add an entry for a disk to the volboot file, use the following command where device is the disk access name of the disk device to be added:

# vxdctl add disk device

If your system is configured to use Dynamic Multipathing (DMP), you can also use vxdctl to:

reconfigure the DMP database to include disk devices newly attached to, or removed from the system
create DMP device nodes in the directories /dev/vx/dmp and /dev/vx/rdmp
update the DMP database with changes in path type for active/passive disk arrays. Use the utilities provided by the disk-array vendor to change the path type between primary and secondary

For more information about how to use vxdctl, refer to the vxdctl(1M) manual page.

Managing the Configuration Daemon in VxVM

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