Each tape device has an associated name that appears in a defined format. The format includes information about the type of device, rewind type, alias, and compression type.
The format of a tape device name is as follows:
[remote_host:]rewind_type st alias_number compression_type
remote_host is optional. You specify a remote host storage system if you want to use a tape drive attached to that host. You must follow the remote host name with a colon (:).
rewind_type is the rewind type.
st is the standard designation for a tape drive.
alias_number is the alias that Data ONTAP assigns to the tape drive. When Data ONTAP detects a new tape drive, it assigns an alias to it. You can modify an alias using the storage alias command (available through the nodeshell). An alias assigned by Data ONTAP or modified by the user persists through reboots.
compression_type is a drive-specific code for the density of data on the tape and the type of compression.
The following example shows the tape devices associated with HP Ultrium 2-SCSI:
Tape drive (fc202_6:2.126L1) HP Ultrium 2-SCSI rst0l - rewind device, format is: HP (200GB) nrst0l - no rewind device, format is: HP (200GB) urst0l - unload/reload device, format is: HP (200GB) rst0m - rewind device, format is: HP (200GB) nrst0m - no rewind device, format is: HP (200GB) urst0m - unload/reload device, format is: HP (200GB) rst0h - rewind device, format is: HP (200GB) nrst0h - no rewind device, format is: HP (200GB) urst0h - unload/reload device, format is: HP (200GB) rst0a - rewind device, format is: HP (400GB w/comp) nrst0a - no rewind device, format is: HP (400GB w/comp) urst0a - unload/reload device, format is: HP (400GB w/comp)The following list describes the abbreviations in the preceding example:
- GB—Gigabytes; this is the capacity of the tape.
- w/comp—With compression; this shows the tape capacity with compression.