ADIC Time Clock 6-00028-01 Rev A Manuel D’Utilisation

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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