Quantum 3.5.1 User Manual

Allowance for Special Characters

StorNext User’s Guide

337

The best rule of thumb is to use a 16K FsBlockSize unless other 

requirements such as directory ratio dictate otherwise. 
This setting is not adjustable after initial file system creation, so it is 

configuration.
Example: 

FsBlockSize             16K

1

The optimal settings for JournalSize are in the range between 16M and 

64M, depending on the FsBlockSize. Avoid values greater than 64M due 

to potentially severe impacts on startup and failover times. Values at the 

higher end of the 16M-64M range may improve performance of metadata 

operations in some cases, although at the cost of slower startup and 

failover time. 
The following table shows recommended settings. Choose the setting that 

corresponds to your configuration.

This setting is adjustable using the 

 utility. For more 

information, see the 

 man page.

Example: 

JournalSize             16M 

Allowance for Special Characters

In prior StorNext releases, the StorNext GUI would sometimes operate 

incorrectly when encountering files whose names contained certain non-

standard characters: single quotation marks and characters with ASCII 

values less than 32, such as tab stops and carriage returns. 

16KB

16MB

64KB

64MB