StorageTek 9840 - Manual (Page 120)

Overview
5-4 Sixth Edition 95741
CSL Firmware Update/Load
Drive code release 1.28.10x, and up, combines the latest CSL released code with
the 9840 Tape Drive code. The code load process is as follows:
Note: Drive code update/load must always be completed by a qualified
technician.
1. When the code tape is loaded, the code loads into the drive EEPROM.
2. When the drive is IPLd and if the drive is installed in a CSL, the CSL code is
checked.
3. If the code is different, the code will be updated within the CSL EEPROM.
Note: If the code levels are the same, no download occurs.
4. The drive displays CSL Update (update takes approximately 1.5 minutes).