Table of Contents
Advertisement
394
Buffalo Surveillance Server
Media
"Media" refers to containers, within Buffalo Surveillance Server Vaults, on which data is stored.
There are various types of media, including hard disk, tape, CD, DVD, and Blu-ray. Hard disks
are sometimes referred to as "virtual media"; CD, DVD, and Blu-ray are sometimes referred to
as "optical media". Tape is sometimes referred to as "physical media".
Metadata Catalog
Metadata is "data about data". It is structured data which describes the characteristics of a
data asset. In can include information such as how and when and by whom a particular set of
data was collected, and how the data is formatted.
Metadata catalogs reside in Vaults and servers and contain metadata files. The Vault uses a
portion of its host computer's hard disk to house the primary working copy of the metadata
catalog. This catalog will grow in direct relation to the amount of data stored in the Vault.
The ratio between the size of the metadata catalog and the Vault's data store is an
average of 1%. This can vary based on the length of a file's pathname of origin and the
average file size. For example, small files with long pathnames will result in a higher
catalog to data store ratio than large files with short pathnames. The metadata catalog
is replicated for safety and redundancy. Every unit of media used to store data is
equipped with the metadata of the data it contains, which is updated every time the
media is utilized. A metadata file is created for every file managed by a Buffalo
Surveillance Server Vault. The metadata file contains information about the files in the
Information Repository, including file name, pathname, original owner rights, ACLs, date
and time stamp, file size, file type, and the file's stored location. This information is used
to track and manage files while they are in the Information Repository. It is also used to
provide a quick response to queries about files required for retrieval.
Object
As used in this help documentation, an "object" is any thing that can be clearly identified apart
from other things. For example, networks, computers, drives, folders, files, icons, etc.
On-Media Catalog
The On-Media Catalog is the metadata catalog, stored on every media unit, that contains
metadata for all the files. The on-media catalog is an Information Repository safeguard. Should
a Vault catalog become lost or corrupted, the on-media catalogs are used to rebuild it.
OS
OS is an abbreviation for Operating System. For example, Windows, OS X, Linux.
Advertisement
Table of Contents
