Quantum 3.5.2 Marine Sanitation System User Manual


 
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 figure 54
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.
8 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.