(sorry if this is a duplicate, i sent it while my subscription was in
limbo w/ majordomo)
---
All:
New material for the FAQ-o-matic. There are Dell 120 series unit
listed, but none feature a 120T.
I'm not sure about these filemark values. Obviously a value of 0 won't
work, will it?
~BAS
------------
$ uname -msr
FreeBSD soundwave 5.3-RELEASE-p15 i386
ch1 at ahc0 bus 0 target 0 lun 0
ch1: <ADIC FastStor DLT D116> Removable Changer SCSI-2 device
ch1: 3.300MB/s transfers
ch1: 7 slots, 1 drive, 1 picker, 0 portals
sa0 at ahc0 bus 0 target 1 lun 0
sa0: <QUANTUM DLT7000 2561> Removable Sequential Access SCSI-2 device
sa0: 20.000MB/s transfers (10.000MHz, offset 8, 16bit)
-------------
# chio -f /dev/ch1 status
picker 0:
slot 0: <ACCESS,FULL>
slot 1: <ACCESS>
slot 2: <ACCESS,FULL>
slot 3: <ACCESS>
slot 4: <ACCESS>
slot 5: <ACCESS,EXCEPT>
slot 6: <ACCESS,EXCEPT>
drive 0: <ACCESS,FULL>
# chio -f /dev/ch1 params
/dev/ch1: 7 slots, 1 drive, 1 picker
/dev/ch1: current picker: 0
# amtapetype -f /dev/sa0
Writing 256 Mbyte compresseable data: 25 sec
Writing 256 Mbyte uncompresseable data: 207 sec
WARNING: Tape drive has hardware compression enabled
Estimated time to write 2 * 1024 Mbyte: 1656 sec = 0 h 27 min
wrote 454530 32Kb blocks in 1390 files in 13494 seconds (short write)
[interrupt]
# mt -f /dev/sa0 comp off
# amtapetype -of /dev/sa0
Writing 32 Mbyte compresseable data: 25 sec
Writing 32 Mbyte uncompresseable data: 26 sec
Estimated time to write 2 * 1024 Mbyte: 1664 sec = 0 h 27 min
wrote 454530 32Kb blocks in 1390 files in 13494 seconds (short write)
wrote 455585 32Kb blocks in 2795 files in 16343 seconds (short write)
define tapetype unknown-tapetype {
comment "just produced by tapetype prog (hardware compression off)"
length 14220 mbytes
filemark 0 kbytes
speed 984 kps
}
# ---- WITH COMPRESSION -----
# mt -f /dev/sa0 comp on
# mt -f /dev/sa0 status
Mode Density Blocksize bpi Compression
Current: 0x19:DLTapeIII variable 62500 IDRC
---------available modes---------
0: 0x19:DLTapeIII variable 62500 IDRC
1: 0x19:DLTapeIII variable 62500 IDRC
2: 0x19:DLTapeIII variable 62500 IDRC
3: 0x19:DLTapeIII variable 62500 IDRC
---------------------------------
Current Driver State: at rest.
---------------------------------
File Number: 0 Record Number: 0 Residual Count 0
# time amtapetype -of /dev/sa0
Writing 256 Mbyte compresseable data: 25 sec
Writing 256 Mbyte uncompresseable data: 206 sec
WARNING: Tape drive has hardware compression enabled
Estimated time to write 2 * 1024 Mbyte: 1648 sec = 0 h 27 min
wrote 409404 32Kb blocks in 1252 files in 13262 seconds (short write)
wrote 410923 32Kb blocks in 2521 files in 18251 seconds (short write)
define tapetype unknown-tapetype {
comment "just produced by tapetype prog (hardware compression on)"
length 12817 mbytes
filemark 0 kbytes
speed 854 kps
}
real 536m42.013s
user 0m3.708s
sys 1m8.313s
|
