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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
 
Chapter 5      Configuring Virtual Switching Systems
Understanding Virtual Switching Systems
  cat4000_flash:       Directory or file name
  cns:                 Directory or file name
  crashinfo:           Directory or file name
  kinfo:               Directory or file name
  null:                Directory or file name
  nvram:               Directory or file name
  revrcsf:             Directory or file name
  slavebootflash:      Directory or file name
  slavecat4000_flash:  Directory or file name
  slavecrashinfo:      Directory or file name
  slavekinfo:          Directory or file name
  slavenvram:          Directory or file name
  slaveslot0:          Directory or file name
  slaveusb0:           Directory or file name
  slot0:               Directory or file name
  system:              Directory or file name
  tar:                 Directory or file name
  tmpsys:              Directory or file name
  usb0:                Directory or file name
  |                    Output modifiers
All file or directory name with prefix "slave" show vss standby files.
In Quad-Supervisor VSS mode, the following output is displayed:
Switch dir ?
/all List all files
/recursive List files recursively
all-filesystems List files on 
all filesystems
bootflash-ics: Directory or file name
bootflash: Directory or file name
cat4000_flash: Directory or file name
cns: Directory or file name
crashinfo: Directory or file name
kinfo: Directory or file name
lcfpga: Directory or file name
null: Directory or file name
nvram: Directory or file name
revrcsf: Directory or file name
slavebootflash-ics: Directory or file name
slavebootflash: Directory or file name
slavecat4000_flash: Directory or file name
slavecrashinfo: Directory or file name
slavekinfo: Directory or file name
slavenvram: Directory or file nameslaveslot0: Directory or file name
slaveusb0: Directory or file nameslot0: Directory or file name
smi: Directory or file name
system: Directory or file name
tar: Directory or file name
tmpsys: Directory or file nameusb0: Directory or file name| Output modifiers
Note The in-chassis standby (ICS) bootflash is displayed as bootflash-ics: and slavebootflash-ics. The 
ICS USB0: and slot0: is not accessible from the VSS Active switch, and is not displayed in the output.
Diagnostics
Bootup diagnostics are run independently on both switches. Online diagnostics can be invoked on the 
basis of virtual slots, which provide accessibility to modules on both switches. Use the show switch 
virtual slot-map command to display the virtual to physical slot mapping.