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Managing the AMASS File System
1-14 Initial Setup Tasks 6-00028-01 Rev A
The following figure illustrates these volume groups.
Uniform Media in Numeric and Cleaning Groups
Both numeric volume groups and the cleaning group must
contain a homogeneous type of media.
At a site using both WORM and erasable optical platters, for
example, volume group 47 can contain WORM platters or it can
contain erasable platters, but it cannot contain both media types.
Cleaning cartridges are assigned to the cleaning
group (CL). When a drive needs cleaning, AMASS
selects the appropriate cleaning volume from this
group.
Volumes can be assigned to the space pool (SP).
These are formatted volumes with specific
attributes. When a numeric volume group runs out
of space, and it has been enabled to use the space
pool, AMASS automatically takes a volume with the
same attributes from the space pool and assigns it
to the numeric group that ran out of space. Thus,
AMASS can continue to write data to the numeric
volume group.
Volumes can be assigned to a numeric volume
group. The group can be a number from 1 through
2047.
Space Pool
Cleaning Group
Numeric Volume Group
Media verification group. A volume assigned to the
media verification (MV) volume group consists of
media verified as “good” for the AMASS Infinite File
Life (IFL) optional feature.
Media Verification