Product manual

65
Web-based Management
Planning and CreatiOn OF the File SyStem
This section discusses the choices you must make when creating a shared network le system with the VTrak
A-Class using the Advanced Conguration option in the File System Setup Wizard. When planning the le
system, the administrator needs to take into account the types of applications that will be used and the expected
workload as this can impact some of the conguration choices.
Setting up the le system or le systems will be a relatively simple task for most users. For example, the
Automatic conguration option in the initial setup procedure does not require any other conguration decisions
from the administrator. Automatic le system conguration will create one le system using all available capacity.
The default le system conguration is best suited for video and audio applications.
If you intend to create more than one le system, use the Advanced option for le system conguration.
The default conguration settings for a le system created with Advanced conguration are better suited for
video and audio applications. You have additional options to override some settings (Block Size, Inode Ratio,
Journal Size) to suit specic applications. But once the le systems is created, these settings cannot be changed.
However, even after the le system has been created, there is still a high degree of exibility available to the
administrator. The VTrak supports multiple le system setups where le systems can be created for different
purposes and applications, for example, one le system might be setup for audio-video editing, while another is
used for more generic data les, text les, Email, etc. Plus, an existing le system can be expanded to increase
capacity.
It is important to understand that once a le system has been created, its structural elements such a the
size of the Journal or Block Size cannot be changed. If you are planning to change the congurable le system
settings Block Size , Journal Size or Inode Ratio , from the default values that are automatically generated,
it is important to understand how these changes might impact the efciency of storage space utilization and I/O
performance.