Edit: /usr/bin/sgm_dd (34976B)
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(only when read side is sg device (using mmap))
fua force unit access: 0->don't(def), 1->OFILE, 2->IFILE,
3->OFILE+IFILE
if file or device to read from (def: stdin)
iflag comma separated list from: [direct,dpo,dsync,excl,fua,
null]
of file or device to write to (def: stdout), OFILE of '.'
treated as /dev/null
oflag comma separated list from: [append,dio,direct,dpo,dsync,
excl,fua,null]
seek block position to start writing to OFILE
skip block position to start reading from IFILE
sync 0->no sync(def), 1->SYNCHRONIZE CACHE on OFILE after copy
time 0->no timing(def), 1->time plus calculate throughput
verbose 0->quiet(def), 1->some noise, 2->more noise, etc
--dry-run|-d prepare but bypass copy/read
--help|-h print usage message then exit
--verbose|-v increase verbosity
--version|-V print version information then exit
Copy from IFILE to OFILE, similar to dd command
specialized for SCSI devices for which mmap-ed IO attempted
[bgs64] number of blocks=%ld [0x%lx], block size=%d
other (perhaps ordinary file) number of blocks=%ld [0x%lx], block size=%d
sgm_dd: for 6 byte commands, maximum number of blocks is 256
sgm_dd: for 6 byte commands, can't address blocks beyond %d
sgm_dd: for 6 byte commands, neither dpo nor fua bits supported
sgm_dd: for 10 byte commands, maximum number of blocks is %d
sgm_dd: expected cdb size of 6, 10, 12, or 16 but got %d
time to transfer data%s: %d.%06d secs Progress report, continuing ...
sgm_dd: bad wr cdb build, to_block=%ld, blocks=%d
sgm_dd: SG_IO error (sg_write) sgm_dd: bad rd cdb build, from_block=%ld, blocks=%d
sgm_dd: bad argument to 'bpt'
sgm_dd: bad argument to 'count'
sgm_dd: bad argument to 'ibs'
sgm_dd: bad argument to 'iflag'
sgm_dd: bad argument to 'oflag'
sgm_dd: bad argument to 'obs'
sgm_dd: bad argument to 'seek'
sgm_dd: bad argument to 'skip'
Unrecognised short option in '%s', try '--help'
For more information use '--help'
Assume default 'bs' (block size) of %d bytes
If 'ibs' or 'obs' given must be same as 'bs'
skip and seek cannot be negative
Can't use both append and seek switches
sgm_dd: unable to use scsi tape device %s
sgm_dd: could not open %s for sg reading sgm_dd: sg driver prior to 3.1.22
sgm_dd: SG_GET_RESERVED_SIZE error sgm_dd: SG_SET_RESERVED_SIZE error sgm_dd: error using mmap() on file: %s sgm_dd: could not open %s for reading sgm_dd: couldn't skip to required position on %s >> skip: lseek64 SEEK_SET, byte offset=0x%lx
sgm_dd: could not open %s for sg writing sgm_dd: could not open %s for writing sgm_dd: could not open %s for raw writing sgm_dd: couldn't seek to required position on %s >> seek: lseek64 SEEK_SET, byte offset=0x%lx
Won't default both IFILE to stdin _and_ OFILE to as stdout
Unit attention(in), continuing
Aborted command(in), continuing
Unable to read block capacity on %s
block size on %s confusion; bs=%d, from device=%d
Unit attention(out), continuing
Aborted command(out), continuing
block size on %s confusion: bs=%d, from device=%d
Couldn't calculate count, please give one
Note: SCSI command size increased to 16 bytes (for 'if')
Note: SCSI command size increased to 16 bytes (for 'of')
>>> dio only performed on 'of' side when 'if' is an sg device
>>> %s set to '0' but should be set to '1' for direct IO
Since both 'if' and 'of' are sg devices, only do mmap-ed transfers on 'if'
Unit attention or aborted command, continuing (r)
Unit attention or aborted command, continuing (w)
output file probably full, seek=%ld >> Non-zero sum of residual counts=%d
>> dio requested but _not_ done %d times
write(unix): count=%d, res=%d
remaining block count=%ld
%ld+%d records in
%ld+%d records out
BLKSSZGET ioctl error BLKGETSIZE64 ioctl error null device SCSI generic (sg) device block device SCSI tape device raw device unable to 'stat' file so far at %.2f MB/sec
Interrupted by signal, no flag found
append direct dpo dsync excl fua null unrecognised flag: %s
write cdb: %02x duration=%u ms
Writing, continuing writing read cdb: Reading, continuing reading sgm_dd: SG_IO error (sg_read) %s bpt sgm_dd: bad argument to 'bs'
cdbsz coe count ibs if Second 'if=' argument??
iflag of Second 'of=' argument??
oflag obs seek skip time --dry-run --dry_run --help -? --verb --vers Unrecognized option '%s'
1.60 20180811 sgm_dd: : %s
bpt must be greater than 0
>> Input file type: %s
sgm_dd: unable to access %s
>> Output file type: %s
Read capacity (if=%s): %s
Read capacity (of=%s): %s
/proc/scsi/sg/allow_dio Not enough user memory
sg_read failed, skip=%ld
read(unix): count=%d, res=%d
sg_write failed, seek=%ld
sgm_dd: writing, seek=%ld >> Synchronizing cache on %s
Synchronize cache(out): %s
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