Quantum Marine Sanitation System 3.5.2 Manual Do Utilizador

Chapter 6  Managing the File System

Performing File System Expansion

StorNext User’s Guide

156

• Label Type: If you plan to create LUNs larger than 2TB, you 

must specify the EFI label type when configuring a file system. 
VTOC labels were used for all operating systems in previous 

StorNext and Xsan releases, and are still required for the SGI IRIX 

operating system, Solaris releases prior to Solaris 10 Update 2, 

and LUNs less than 1TB. 
EFI labels are required if you plan to create LUNs that are larger 

than 2TB. (For Solaris, EFI labels are also required for LUNs with 

a raw capacity greater than 1TB.) EFI labels will not work with 

the IRIX operating system. 
The correct value is automatically selected on the New Stripe 

Groups screen, so you can accept the default value unless you 

have a reason to change the label type. 
For more information about 2TB LUN requirements, see the 

StorNext Installation Guide.

• Label Help: Click this link to display guidelines for determining 

whether to select VTOC or EFI labels. (See 

 on page 89.)

• Stripe breadth drop-down menu: The stripe breadth for the file 

system. The stripe breadth is the number of kilobytes (KB) that is 

read from or written to each disk in the stripe. For a typical 

StorNext installation, 64KB is the recommended setting.

• Metadata or Data: Specify whether you plan to use the stripe 

group for data or for metadata. 

Click Next to continue. If you are entering more than one stripe 

group, your choices are saved and you are ready to make selections 

for the next stripe group. Repeat step 5 for each stripe group you are 

adding.
If you are adding only one stripe group, the Complete File System 

Task screen appears after you click Next.