Unix Tipz & Tricz

VxVM relies on the following constantly-running daemons for its operation:

■ vxconfigd—The VxVM configuration daemon maintains disk and group configurations. It communicates configuration changes to the kernel, and modifies configuration information stored on disks.

■ vxiod—VxVM I/O kernel threads provide extended I/O operations. By default, 16 I/O threads are started at boot time, and at least one I/O thread must continue to run at all times.

■ vxrelocd—The hot-relocation daemon monitors VxVM for events that affect redundancy, and performs hot-relocation to restore redundancy.