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Hi Mark,
just playing around with the latest update (includes the patch of yesterday). It all seems to work, but I did find a bug.
The dump_tape command shows the remaining capacity now, like this:
[root@orange ~]# dump_tape -f LTO1
PCL is : LTO1
Media density code: 0x40
Media type code : 0x01
Media description : Ultrium 1/8T
Tape Capacity : 1048576000
Remaining Tape Capacity : 943256287
Total num of filemarks: 6
Hdr: Compressed data(0b), sz 1047/10240 , Blk No.: 0, data 0
Hdr: Filemark(03), sz 0, Blk No.: 1, data 1047
Hdr: Compressed data(0b), sz 10173/10240 , Blk No.: 2, data 1047
Hdr: Compressed data(0b), sz 10251/10240 , Blk No.: 3, data 11220
Hdr: Compressed data(0b), sz 10239/10240 , Blk No.: 4, data 21471
Hdr: Compressed data(0b), sz 7504/10240 , Blk No.: 5, data 31710
Hdr: Filemark(03), sz 0, Blk No.: 6, data 39214
Hdr: Compressed data(0b), sz 278/10240 , Blk No.: 7, data 39214
Hdr: Compressed data(0b), sz 3002/10240 , Blk No.: 8, data 39492
Hdr: Compressed data(0b), sz 1365/10240 , Blk No.: 9, data 42494
Hdr: Compressed data(0b), sz 886/10240 , Blk No.: 10, data 43859
Hdr: Compressed data(0b), sz 712/10240 , Blk No.: 11, data 44745
Hdr: Compressed data(0b), sz 2471/10240 , Blk No.: 12, data 45457
Hdr: Compressed data(0b), sz 4634/10240 , Blk No.: 13, data 47928
Hdr: Compressed data(0b), sz 3689/10240 , Blk No.: 14, data 52562
Hdr: Compressed data(0b), sz 3313/10240 , Blk No.: 15, data 56251
Hdr: Compressed data(0b), sz 2896/10240 , Blk No.: 16, data 59564
Hdr: Compressed data(0b), sz 3037/10240 , Blk No.: 17, data 62460
Hdr: Compressed data(0b), sz 3654/10240 , Blk No.: 18, data 65497
Hdr: Compressed data(0b), sz 896/10240 , Blk No.: 19, data 69151
Hdr: Compressed data(0b), sz 2482/10240 , Blk No.: 20, data 70047
Hdr: Compressed data(0b), sz 4716/10240 , Blk No.: 21, data 72529
Hdr: Compressed data(0b), sz 3884/10240 , Blk No.: 22, data 77245
Hdr: Compressed data(0b), sz 3189/10240 , Blk No.: 23, data 81129
Hdr: Compressed data(0b), sz 2558/10240 , Blk No.: 24, data 84318
Hdr: Filemark(03), sz 0, Blk No.: 25, data 86876
Hdr: data(0b), sz 10240/10240 , Blk No.: 26, data 86876
Hdr: data(0b), sz 10240/10240 , Blk No.: 27, data 97116
Hdr: data(0b), sz 10240/10240 , Blk No.: 28, data 107356
Hdr: data(0b), sz 10240/10240 , Blk No.: 29, data 117596
Hdr: data(0b), sz 10240/10240 , Blk No.: 30, data 127836
Hdr: data(0b), sz 10240/10240 , Blk No.: 31, data 138076
Hdr: data(0b), sz 10240/10240 , Blk No.: 32, data 148316
Hdr: data(0b), sz 10240/10240 , Blk No.: 33, data 158556
Hdr: data(0b), sz 10240/10240 , Blk No.: 34, data 168796
Hdr: data(0b), sz 10240/10240 , Blk No.: 35, data 179036
Hdr: data(0b), sz 10240/10240 , Blk No.: 36, data 189276
Hdr: data(0b), sz 10240/10240 , Blk No.: 37, data 199516
Hdr: data(0b), sz 10240/10240 , Blk No.: 38, data 209756
Hdr: data(0b), sz 10240/10240 , Blk No.: 39, data 219996
Hdr: data(0b), sz 10240/10240 , Blk No.: 40, data 230236
Hdr: data(0b), sz 10240/10240 , Blk No.: 41, data 240476
Hdr: data(0b), sz 10240/10240 , Blk No.: 42, data 250716
Hdr: data(0b), sz 10240/10240 , Blk No.: 43, data 260956
Hdr: Filemark(03), sz 0, Blk No.: 44, data 271196
Hdr: data(0b), sz 10240/10240 , Blk No.: 45, data 271196
Hdr: data(0b), sz 10240/10240 , Blk No.: 46, data 281436
Hdr: data(0b), sz 10240/10240 , Blk No.: 47, data 291676
Hdr: data(0b), sz 10240/10240 , Blk No.: 48, data 301916
Hdr: data(0b), sz 10240/10240 , Blk No.: 49, data 312156
Hdr: data(0b), sz 10240/10240 , Blk No.: 50, data 322396
Hdr: data(0b), sz 10240/10240 , Blk No.: 51, data 332636
Hdr: data(0b), sz 10240/10240 , Blk No.: 52, data 342876
Hdr: data(0b), sz 10240/10240 , Blk No.: 53, data 353116
Hdr: data(0b), sz 10240/10240 , Blk No.: 54, data 363356
Hdr: data(0b), sz 10240/10240 , Blk No.: 55, data 373596
Hdr: data(0b), sz 10240/10240 , Blk No.: 56, data 383836
Hdr: data(0b), sz 10240/10240 , Blk No.: 57, data 394076
Hdr: data(0b), sz 10240/10240 , Blk No.: 58, data 404316
Hdr: data(0b), sz 10240/10240 , Blk No.: 59, data 414556
Hdr: data(0b), sz 10240/10240 , Blk No.: 60, data 424796
Hdr: data(0b), sz 10240/10240 , Blk No.: 61, data 435036
Hdr: data(0b), sz 10240/10240 , Blk No.: 62, data 445276
Hdr: Filemark(03), sz 0, Blk No.: 63, data 455516
Hdr: Compressed data(0b), sz 278/10240 , Blk No.: 64, data 455516
Hdr: Compressed data(0b), sz 3002/10240 , Blk No.: 65, data 455794
Hdr: Compressed data(0b), sz 1365/10240 , Blk No.: 66, data 458796
Hdr: Compressed data(0b), sz 886/10240 , Blk No.: 67, data 460161
Hdr: Compressed data(0b), sz 712/10240 , Blk No.: 68, data 461047
Hdr: Compressed data(0b), sz 2471/10240 , Blk No.: 69, data 461759
Hdr: Compressed data(0b), sz 4634/10240 , Blk No.: 70, data 464230
Hdr: Compressed data(0b), sz 3689/10240 , Blk No.: 71, data 468864
Hdr: Compressed data(0b), sz 3313/10240 , Blk No.: 72, data 472553
Hdr: Compressed data(0b), sz 2896/10240 , Blk No.: 73, data 475866
Hdr: Compressed data(0b), sz 3037/10240 , Blk No.: 74, data 478762
Hdr: Compressed data(0b), sz 3654/10240 , Blk No.: 75, data 481799
Hdr: Compressed data(0b), sz 896/10240 , Blk No.: 76, data 485453
Hdr: Compressed data(0b), sz 2482/10240 , Blk No.: 77, data 486349
Hdr: Compressed data(0b), sz 4716/10240 , Blk No.: 78, data 488831
Hdr: Compressed data(0b), sz 3884/10240 , Blk No.: 79, data 493547
Hdr: Compressed data(0b), sz 3189/10240 , Blk No.: 80, data 497431
Hdr: Compressed data(0b), sz 2558/10240 , Blk No.: 81, data 500620
Hdr: Filemark(03), sz 0, Blk No.: 82, data 503178
Hdr: End of Data(05), sz 0, Blk No.: 83, data 503178
Now I erase the tape (can be done only when the tape is at BOT).
[root@orange ~]# mt -f /dev/nst0 erase
Show the tape again:
[root@orange ~]# dump_tape -f LTO1
PCL is : LTO1
Media density code: 0x40
Media type code : 0x01
Media description : Ultrium 1/8T
Tape Capacity : 1048576000
Remaining Tape Capacity : 943256287
Total num of filemarks: 0
Hdr: End of Data(05), sz 0, Blk No.: 0, data 0
As you can see the remaining tape capacity isn't updated when erasing the tape, i.e. reset to the maximum capacity.
Albert
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