Veritas Storage Foundation 5.1 SP1 Cluster File System Administrator"s Guide (5900-1738, April 2011)

local mounted file
system
A file system mounted on a single host. The single host mediates all file system
writes to storage from other clients. To be a local mount, a file system cannot be
mounted using the mount -o cluster option.
metadata Structural data describing the attributes of files on a disk.
MB (megabyte) 2
20
bytes or 1024 kilobytes.
mirror A duplicate copy of a volume and the data therein (in the form of an ordered
collection of subdisks). Each mirror is one copy of the volume with which the
mirror is associated.
multi-volume file
system
A single file system that has been created over multiple volumes, with each volume
having its own properties.
MVS (multivolume
support)
node One of the hosts in a cluster.
node abort A situation where a node leaves a cluster (on an emergency basis) without
attempting to stop ongoing operations.
node join The process through which a node joins a cluster and gains access to shared disks.
OLT (object location
table)
The information needed to locate important file system structural elements. The
OLT is written to a fixed location on the underlying media (or disk).
page file A fixed-size block of virtual address space that can be mapped onto any of the
physical addresses available on a system.
preallocation A method of allowing an application to guarantee that a specified amount of space
is available for a file, even if the file system is otherwise out of space.
primary fileset The files that are visible and accessible to the user.
quotas Quota limits on system resources for individual users for file and data block usage
on a file system.
quotas file The quotas commands read and write the external quotas file to get or change
usage limits. When quotas are turned on, the quota limits are copied from the
external quotas file to the internal quotas file.
reservation An extent attribute used to preallocate space for a file.
SFCFS (Storage
Foundation Cluster File
System)
SFCFS Primary There is a primary node for each file system in the cluster responsible for updating
metadata in the file system.
Glossary204