LTO8 Tape Drive Code Fixlist


===================================================================================================

Drive Code Level: LTO8_N4Q0  (LTO8_FH_FC)
Fixes:
===================================================================================================

Improved error handling during unload  (FSC 6000)
Fix and enhancements for repositioning errors 
Fix command timeout on LOCATE/SPACE to the last record on the tape
Fix unexpected reboot that sometimes occurs by reading mixed encrypted data near BOP
Fix unexpected endmarker found (FSC 6601)
Fix drive hang after rechuck failure due to head stuck during unload (FSC 78E3)
Improve MTR (Improve transition from deceleration to unspool in MTR)
Fix unload command hangs (no response) after unload failure with 2E0C (bottom sensor error)
Do not allow initialization of read only tape gens
Fix Read error case  (FSC 7274)
Fix SAS loopback diagnostic
Allow to load a tape whose validity is rfx=300 = (FSC 8C3E)
Adjust calibration criteria in special cases
Improve calibration in certain conditions
Prevent tape run-off due to command queuing issue  (FSC 2E12)
Remove LP3 passes from media EOL criteria
Fix Read failure at EOW (FSC 5175)
Fix read SAW (Suspended Append Write) DS on BOW (FSC 6353)
Refresh tape pack after MTR
Fix Read failure on BOW (FSC 6353)
Fix Write failure when writing from BOT on brand new tape in append-only mode  (FSC 6017)
Fix append failure
FIX tension shutdown due to inboard/outboard velocity mismatch (if LTU is enabled (disabled by default))
Prevent drives with degraded tracks from writing. Drive will post FSC B3B1/D058 or 53B1/1058 and will be fenced until replaced
Add support for service action 1Eh for Report/Set Automation Device Attributes commands
Fix write failure (FSC 2C30) on uninitialized WORM tape 20 minutes after loading cartridge
Fix for Read command timeout






===================================================================================================

Drive Code Level: LTO8_M570  (LTO8_FH_FC)
Fixes:
===================================================================================================

Log Sense parameter collection and reporting improvements 
Error recovery handling and enhancements
Unload and Load command and processing improvements
EOD processing improvements
Tape handling and servo improvements




===================================================================================================

Drive Code Level: LTO8_KAH0  (LTO8_FH_FC)
Fixes:
===================================================================================================

Mode Sense and Log Sense improvements 
Read error recovery handling and enhancements
Write command and write error recovery handling and enhancements
Reset due to bad link quality
Improved transfer length and overlap handling
Correct parameter checking for Write Attribute command
Host interface logging in and task management message improvements
Allow unload to invoke mid tape recovery after un-spool operation failure
Tape servo improvements
Not reset after power saving unthread
Update Erase command time-out for LTO8






===================================================================================================

Drive Code Level: LTO8_K4K0  (LTO8_FH_FC)
Fixes:
===================================================================================================

Host interface command and abort handling improvements
Error recovery and sense reporting enhancements
Fix wrong motion status report (wrong "writing") to library
FCR3356: Inquiry page C2h (drive bar codes)
Servo and tape handling improvements
Prevent resets that could happen on entering power saving mode or during unload







===================================================================================================
Drive Code Level: LTO8_JAYE  (LTO8_FH_FC)
Fixes:
===================================================================================================

Host interface and queued task management improvements
Cartridge memory improvements for MAM attributes
Servo detection and tension control enhancements
Avoid returning incorrect density code when not loaded/ready
Improvement of Performance Diagnostic
SCD displays "0" instead of blank incorrectly





===================================================================================================
Drive Code Level: LTO8_JAY0  (LTO8_FH_FC)
Fixes:
===================================================================================================

Improve and enhance host interface transfers and attachment
Improve log page data reporting
Fix medium access queue hangs   
Improve LUN1 sense, data, and inquiry handling
Correct SCD display for error indications
Write Attribute command improvements
Error recovery enhancements
T10-OOB: do not clear KME error/info on repositions
Archive mode improvements
Tape and head servo control improvements




===================================================================================================

Drive Code Level: LTO8_J4D0  (LTO8_FH_FC)

Fixes:
===================================================================================================

Improve host interface communications
Add tension control and error recovery procedures (ERP)
LN1: not set VS bits in inquiry data
Servo control improvements
Improve head brush ERP
Fixes for log sense and tape alert data
Request clean for errors that require re-chuck ERP