User Manual

Enterasys X-Pedition User Reference Manual 11
Chapter 2
Virtual File Systems
This chapter provides information about the Virtual File Systems used on the PCMCIA Flash
Module.
PCMCIA Virtual File System (VFS)
The Virtual File System is used to format the PCMCIA Flash Module in such a way that the module
can organize and store files, and enable you to change Boot and System Firmware images on the
module. Enterasys refers to the original virtual file system as VFS1. With Boot Firmware version
1.1.0.8 and System Firmware version 3.0.0.6, Enterasys introduced a second virtual file system
(VFS2) to improve system performance and stability. Under typical conditions, VFS1 requires
10-20 minutes to add or delete a System Firmware image—with VFS2, this operation requires a
fraction of that time. Because of the myriad of possible network configurations, you may require
one VFS over another; the XP allows you to switch between VFS1 and VFS2. The following table
illustrates firmware and VFS version compatibility.
Note: Moving between VFS1 and VFS2 does not alter files stored on the PCMCIA module.
Firmware Version Supports VFS1 Supports VFS2
Boot Firmware version 1.0.0.0 and up YES NO
Boot Firmware version 1.1.0.8 and up YES YES
System Firmware version 1.0.0.0 and up YES NO
System Firmware version 3.0.0.6 and up YES YES