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null device SCSI generic (sg) device block device SCSI tape device raw device unable to 'stat' file BLKSSZGET ioctl errorBLKGETSIZE64 ioctl error Write cdb: %s duration=%u ms writingWriting, continuing Read cdb: %s readingReading, continuingsgm_dd: SG_IO error (sg_read)no flag found appenddirectdpodsyncexclfuanullunrecognised flag: %s so far at %.2f MB/sec Interrupted by signal,%sbptsgm_dd: bad argument to 'bs' cdbszcoecountibsifSecond 'if=' argument?? iflagofSecond 'of=' argument?? oflagobsseekskiptime--dry-run--dry_run--help-?--verb--versUnrecognized option '%s' 1.67 20200510sgm_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_dioNot 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 Some error occurred,Usage: sgm_dd [bs=BS] [count=COUNT] [ibs=BS] [if=IFILE] [iflag=FLAGS] [obs=BS] [of=OFILE] [oflag=FLAGS] [seek=SEEK] [skip=SKIP] [--help] [--version] [bpt=BPT] [cdbsz=6|10|12|16] [dio=0|1] [fua=0|1|2|3] [sync=0|1] [time=0|1] [verbose=VERB] [--dry-run] [--verbose] where: bpt is blocks_per_transfer (default is 128) bs must be device logical block size (default 512) cdbsz size of SCSI READ or WRITE cdb (default is 10) count number of blocks to copy (def: device size) dio 0->indirect IO on write, 1->direct IO on write (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 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 [bgs64] number of blocks=%ld [0x%lx], logical block size=%d 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 time to transfer data%s: %d.%06d secsProgress report, continuing ... 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' ((logical) 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 readingsgm_dd: sg driver prior to 3.1.22 sgm_dd: SG_GET_RESERVED_SIZE errorsgm_dd: SG_SET_RESERVED_SIZE errorsgm_dd: error using mmap() on file: %ssgm_dd: could not open %s for readingsgm_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 writingsgm_dd: could not open %s for writingsgm_dd: could not open %s for raw writingsgm_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 logical block size on %s confusion; bs=%d, from device=%d Unit attention(out), continuing Aborted command(out), continuing logical 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 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