The IOS file system consists of a number of devices and psuedo-devices which store interesting and useful information pertaining to the operation of an IOS device. The specific device availability varies by platform. There are a family of IOS commands designed to operate on IFS entities (like dir, erase, copy, etc).
IOS File System Types | Filesystem | Usage | Description | Available platforms |
|---|
| nvram: | nvram: | Storage of configuration information | All |
| flash: | flash[:partition:]path/filename | On-board flash memory | |
| disk[0-1]: | disk[0-1]:path | Local rotating disk drive, specified by number | |
| slot[0-1]: | slot[0-1]:path | Flash card in PCMCIA slot | PCMCIA flash slot platforms |
| tftp: | tftp://IP-address/path/file | TFTP service to a remote file | all |
| ftp: | ftp://IP-address/path/file | FTP service to a remote file | all |
| rcp: | rcp://IP-address/path/file | RCP service to a remote file | |
| bootflash: | bootflash: | Boot Flash memory (holding the minimum boot image) | |
| null: | null: | Discards the copy stream | |
| slavenvram: | slavenvram: | NVRAM on the slave RSP | HSA RSP cards |
| slavebootflash: | slavebootflash: | Bootflash on the slave RSP | HSA RSP cards |
| slaveslot[0-1]: | | | |
| slaveslot1: | | | |
| xmodem: | | | |
| ymodem: | | | |
| system: | | | |
| flh: | | | |
| pram: | | | |
