The tape drive used is /dev/nrst0, mounted on lanikai, and located on the instrument computer rack in the summit computer room. Insert your (data grade Exabyte) tape into this drive.
The most reliable backup scheme uses 'tar':
lanikai% tar cvf /dev/nrst0
This will create a backup file of the current directory. Exabyte tapes hold 2.2 Gigabytes of data, so you can write several tarfiles to tape in sequence, one for each night of an observing run, for example. These must be done in sequence without tape rewinds, or data may be over-written.
To dismount your tape, use 'mt'
lanikai% mt -f /dev/nrst0 offline
This will rewind and eject your tape.
Tar has many different options; consult the unix 'man' page for 'tar' for
more information.
-------------------------
You may also back up your data from HP, utilizing the tape drive mounted there. Follow the above instructions for remote mounting of the NIRC data disks.
-------------------------
You may back up your data from Waimea, utilizing the tape drive mounted on Kapaa. Do not back up data while any remote observing session is in progress. This will slow the T1 link to the summit so that observing is too unresponsive.