Symantec 5.1 manual an extent pool. See also extent pool

	CommandCentral Glossary 51
volume	In storage media managed by Veritas Volume Manager, a virtual disk made up of
	a portion or portions of one or more physical disks and representing an addressable
	range of disk blocks. It is used by applications such as file systems or databases.
	In an IBM DS6000 or DS8000 array, an addressable unit (LUN) that is created from
	an extent pool. See also extent pool
	In a NetApp unified storage device, a file system holding user data that is accessible
	through one or more of the access protocols supported by Data ONTAP, including
	NFS, CIFS, HTTP, WebDAV, FTP, FCP and iSCSI. Each volume depends on its
	containing aggregate for all of its physical storage—that is, for all storage in the
	aggregate’s disks and RAID groups. See also aggregate
Volume Manager	See Veritas Volume Manager.
VRTSaz	See Symantec Product Authorization Service.
VSAN	See virtual fabric.
VxPBX	See Symantec Private Branch Exchange (VxPBX).
Web Engine	See CommandCentral Storage Web Engine.
World Wide Name	A registered, 64-bit, unique identifier that is assigned to nodes and ports.
(WWN)
XML (Extensible Markup	A specification developed by the W3C. XML allows designers to create custom
Language)	tags to enable flexibility in sharing and displaying Web documents.
zone	A named subset of nodes and ports (zone members) on a single fabric. On a SAN,
	fabrics secure data from unwanted access by restricting the interconnectivity
	between nodes belonging to different zones.
zone alias	A symbolic name assigned to a device or group of devices on a SAN fabric. By
	creating a zone alias, you can assign a familiar name to a device, or you can group
	multiple devices into a single name. A zone alias must be a unique alphanumeric
	string beginning with an alpha character. The underscore character ( _ ) is allowed,
	and zone alias names are case sensitive.
zone member	An object (node or port) that belongs to a zone. An object can be a member of more
	than one zone.
zone membership	For an object (node or port) on a SAN, the state or status of being a member of a
	specific zone. A zone member can communicate only with other objects that are
	members of the same zone—in other words, with objects that share at least one
	zone membership with it.
zone set	A set of zone definitions for a single Fibre Channel fabric. Zone sets are useful for
	defining and enforcing access restrictions that change, for example, at different
	times during the day. A zone can belong to more than one zone set; however, only
	one zone set for a given fabric can be active at one time.