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Harmonic MediaGrid Release 4.1
Chapter 7
Administrative Procedures
This section includes Harmonic MediaGrid power off procedures, setting switch and
ContentDirector passwords, and software upgrade procedures. The following topics are included:
Drive Capacity Expansion in a Harmonic MediaGrid RAID System
Balancing the ContentServer Controllers
Setting the ContentStore 5840 Identification Number
Enabling Directories with More than 15 Levels
Using mgcopy to Copy Files Between Harmonic MediaGrid Systems
Using the mgquota Utility for the Mac FSD
Upgrading Harmonic MediaGrid Firmware
Powering Down a Harmonic MediaGrid System
Powering On a Harmonic MediaGrid System
Logging on to a ContentDirector
Installing Harmonic MediaGrid and ContentDirector Software
Drive Capacity Expansion in a Harmonic MediaGrid RAID System
Expanding drive capacity in your Harmonic MediaGrid RAID system requires significant planning.
An integral component of this process is shelf evacuation, which can take many hours, or even
days, for each ContentServer or ContentStore involved. Please read the following sections
carefully and plan accordingly.
NOTE:
Capacity expansion requires Harmonic MediaGrid version 3.5 or later (on all components in your
Harmonic MediaGrid system) and SystemManager 6.2.3 or later.
About Write Bandwidth During Shelf Evacuation
About Setting Shelves to Read-Only Mode
Expanding Drive Capacity in a Harmonic MediaGrid RAID System
Possible Errors During Shelf Evacuation
About Shelf Evacuation
In a Harmonic MediaGrid RAID system, a
shelf
is one ContentServer 3000 or 4000, one
ContentStore 3160 or 4240, or one
drawer
in a ContentStore 5840. Shelf evacuation involves
transferring data, one shelf at a time, to other shelves in the volume or, for stretch cluster
configurations, to other shelves in the same group. This allows you to maintain uninterrupted
access to data while expanding capacity, or while reconfiguring, replacing, or retiring a shelf.