Quantum Marine Sanitation System 3.5.2 User Manual

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Chapter 6  Managing the File System
Understanding Dynamic Resource Allocation
StorNext User’s Guide
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If the Stub File feature is enabled, indicate how StorNext determines 
the stub file size:
• By Policy: Use the stub file size entered when the storage policy 
was created
• User Set: Change the stub file size by entering the new size (in 
kilobytes) at this field
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Click Apply to modify attributes for the selected files.
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After the Status screen informs you that the operation was completed 
successfully, click OK.
Understanding Dynamic Resource Allocation
StorNext provides two Dynamic Resource Allocation tools that allow you 
to make changes to your file system: File System Expansion, and Stripe 
Group Movement
About File System 
Expansion
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StorNext’s File System Expansion feature enables you to dynamically add 
LUNs to a selected file system without interrupting that file system’s 
operation. 
The only disruption that occurs during File System Expansion is a short 
pause of new metadata requests as StorNext updates its internal system 
and clients to be aware of the new overall capacity and physical disk 
resources that are used.
File System Expansion is often done in conjunction with the Stripe Group 
Movement feature. That is, you might want to add new stripe groups 
knowing you’ll want to use those stripe groups for Stripe Group 
Movement.
StorNext provides a File Expansion Wizard to simplify the process. 
Quantum recommends using this wizard for File System Expansion, but 
you can also use the command line interface. (For information about 
using the CLI, see