Quantum 3.1.3 User Manual

Chapter 6  Managing the File System

Performing File System Expansion

StorNext User’s Guide

150

Follow these steps when you are ready to use the File System Expansion 

Wizard:

From the SNFS home page, choose Expand File System from the 

Admin menu. The File System Expansion - Introduction screen 
appears, showing a list of file systems available for expansion.

During File System Expansion the file system is shut down. 

After expansion you must perform a new metadata dump 

runs after the file system is updated. For managed file 

systems, the File System Expansion wizard includes an option 

for you to run the metadump automatically, or you can do it 

separately from the wizard.

As a final part of the File System Expansion process, StorNext 

restarts the file system. This restart typically takes less than 

two minutes and is often completed in seconds, but during the 

restart all new read/write requests are paused while 

operations in progress continue normally.

When you add a new disk or stripe group to your SAN, 

often an OS-dependent operation must be run to make the 

added device recognizable by a host. Some of these 

utilities can disrupt access to existing disks, causing access 

hangs or failures. To avoid this, stop all file system 

operations on the affected host before rescanning for the 

new device.