What's New as of January 12th, 2000

Changes For This Release

The following changes have been made to dt Version 13.6:

Within Compaq, the updated dt kits are located @ URL:

http://www.zk3.dec.com/~rmiller/dt.html

External to Compaq, you can obtain dt kits from URL:

http://www.bit-net.com/~rmiller/dt.html

Mail Send mail to admin of this page: [email protected] Home To Robin's home page.

Last modified: February 19th, 2000


Examples:


Example showing read-after-write option:
----------------------------------------

tru64% dt of=/dev/rfd0c min=b max=64k incr=7b iotype=random enable=raw runtime=3m
Read After Write Statistics:
     Total records processed: 100 with min=512, max=65536, incr=3584
     Total bytes transferred: 2949120 (2880.000 Kbytes, 2.812 Mbytes)
      Average transfer rates: 16923 bytes/sec, 16.526 Kbytes/sec
     Number I/O's per second: 0.574
      Total passes completed: 1
       Total errors detected: 0/1
          Total elapsed time: 02m54.26s
           Total system time: 00m00.01s
             Total user time: 00m00.16s

Total Statistics:
     Output device/file name: /dev/rfd0c (Device: floppy, type=disk)
     Type of I/O's performed: random (seed 0xa775f81)
   Data pattern read/written: 0x00ff00ff
     Total records processed: 109 with min=512, max=65536, incr=3584
     Total bytes transferred: 3011072 (2940.500 Kbytes, 2.872 Mbytes)
      Average transfer rates: 16642 bytes/sec, 16.252 Kbytes/sec
     Number I/O's per second: 0.602
      Total passes completed: 1
       Total errors detected: 0/1
          Total elapsed time: 03m00.93s
           Total system time: 00m00.01s
             Total user time: 00m00.16s
               Starting time: Wed Jan 12 16:38:38 2000
                 Ending time: Wed Jan 12 16:41:43 2000

tru64% 


Example showing multi-volume option: ------------------------------------ linux% dt of=/dev/st0 bs=32k files=4 limit=50m pattern=iot enable=multi Please insert volume #2 in drive /dev/st0... Press ENTER when ready to proceed: [ Continuing in file #3, record #1425, bytes written so far 151519232... ] Write Statistics: Total records processed: 6400 @ 32768 bytes/record (32.000 Kbytes) Total bytes transferred: 209715200 (204800.000 Kbytes, 200.000 Mbytes) Average transfer rates: 510529 bytes/sec, 498.564 Kbytes/sec Number I/O's per second: 15.580 Total passes completed: 0/1 Total files processed: 4/4 Total errors detected: 0/1 Total elapsed time: 06m50.78s Total system time: 00m00.75s Total user time: 00m06.90s Please insert volume #1 in drive /dev/st0... Press ENTER when ready to proceed: Please insert volume #2 in drive /dev/st0... Press ENTER when ready to proceed: [ Continuing in file #3, record #1425, bytes read so far 151519232... ] Read Statistics: Total records processed: 6400 @ 32768 bytes/record (32.000 Kbytes) Total bytes transferred: 209715200 (204800.000 Kbytes, 200.000 Mbytes) Average transfer rates: 489657 bytes/sec, 478.181 Kbytes/sec Number I/O's per second: 14.943 Total passes completed: 1/1 Total files processed: 4/4 Total errors detected: 0/1 Total elapsed time: 07m08.29s Total system time: 00m00.91s Total user time: 00m26.53s Total Statistics: Output device/file name: /dev/st0 (device type=tape) Type of I/O's performed: sequential Data pattern string used: 'IOT Pattern' Total records processed: 12800 @ 32768 bytes/record (32.000 Kbytes) Total bytes transferred: 419430400 (409600.000 Kbytes, 400.000 Mbytes) Average transfer rates: 434589 bytes/sec, 424.403 Kbytes/sec Number I/O's per second: 13.263 Total passes completed: 1/1 Total files processed: 8/8 Total errors detected: 0/1 Total elapsed time: 16m05.12s Total system time: 00m01.66s Total user time: 00m33.43s Starting time: Fri Feb 18 18:48:22 2000 Ending time: Fri Feb 18 19:04:28 2000 linux%
Example showing proper operation of IOT pattern with lba option: ---------------------------------------------------------------- tru64% dt if=/dev/rrz4c min=1b max=64k incr=7k lba=1000 limit=100m pattern=iot Total Statistics: Input device/file name: /dev/rrz4c (Device: RRD47, type=disk) Type of I/O's performed: sequential Data pattern string used: 'IOT Pattern' Total records processed: 3200 with min=512, max=65536, incr=7168 Total bytes transferred: 104857600 (102400.000 Kbytes, 100.000 Mbytes) Average transfer rates: 878695 bytes/sec, 858.101 Kbytes/sec Number I/O's per second: 26.816 Total passes completed: 1/1 Total errors detected: 0/1 Total elapsed time: 01m59.33s Total system time: 00m00.35s Total user time: 00m14.05s Starting time: Thu Jan 13 14:46:32 2000 Ending time: Thu Jan 13 14:48:33 2000 tru64%
Example showing proper operation with mutliple tape files: ---------------------------------------------------------- linux% dt of=/dev/st0 bs=64k limit=10m enable=lbdata files=10 Write Statistics: Total records processed: 1600 @ 65536 bytes/record (64.000 Kbytes) Total bytes transferred: 104857600 (102400.000 Kbytes, 100.000 Mbytes) Average transfer rates: 1559917 bytes/sec, 1523.356 Kbytes/sec Number I/O's per second: 23.802 Total passes completed: 0/1 Total files processed: 10/10 Total errors detected: 0/1 Total elapsed time: 01m07.22s Total system time: 00m00.45s Total user time: 00m02.90s Read Statistics: Total records processed: 1600 @ 65536 bytes/record (64.000 Kbytes) Total bytes transferred: 104857600 (102400.000 Kbytes, 100.000 Mbytes) Average transfer rates: 2359532 bytes/sec, 2304.230 Kbytes/sec Number I/O's per second: 36.004 Total passes completed: 1/1 Total files processed: 10/10 Total errors detected: 0/1 Total elapsed time: 00m44.44s Total system time: 00m00.56s Total user time: 00m13.07s Total Statistics: Output device/file name: /dev/st0 (device type=tape) Type of I/O's performed: sequential Data pattern read/written: 0x39c39c39 (w/lbdata, starting lba 0) Total records processed: 3200 @ 65536 bytes/record (64.000 Kbytes) Total bytes transferred: 209715200 (204800.000 Kbytes, 200.000 Mbytes) Average transfer rates: 1661374 bytes/sec, 1622.435 Kbytes/sec Number I/O's per second: 25.351 Total passes completed: 1/1 Total files processed: 20/20 Total errors detected: 0/1 Total elapsed time: 02m06.23s Total system time: 00m01.01s Total user time: 00m15.98s Starting time: Thu Jan 13 14:50:51 2000 Ending time: Thu Jan 13 14:52:57 2000 linux%
Example showing multi-volume capability with 'tar': --------------------------------------------------- tru64% tar cf - dt.d | dt if=- of=/dev/rfd0c bs=10k iomode=copy enable=multi Please insert volume #2 in drive /dev/rfd0c... Press ENTER when ready to proceed: [ Continuing at record #145, bytes written so far 1474560... ] Total Statistics: Input device/file name: - (device type=pipe) Type of I/O's performed: sequential Total records processed: 392 @ 10240 bytes/record (10.000 Kbytes) Total bytes transferred: 4014080 (3920.000 Kbytes, 3.828 Mbytes) Average transfer rates: 39961 bytes/sec, 39.024 Kbytes/sec Number I/O's per second: 3.902 Total passes completed: 1/1 Total errors detected: 0/1 Total elapsed time: 01m40.45s Total system time: 00m00.06s Total user time: 00m00.00s Starting time: Wed Jan 19 17:10:43 2000 Ending time: Wed Jan 19 17:12:24 2000 tru64% tar cf - dt.d | dt if=- of=/dev/rfd0c bs=10k iomode=verify enable=multi Please insert volume #2 in drive /dev/rfd0c... Press ENTER when ready to proceed: [ Continuing at record #145, bytes read so far 1474560... ] Total Statistics: Input device/file name: - (device type=pipe) Type of I/O's performed: sequential Data operation performed: Verified '-' with '/dev/rfd0c'. Total records processed: 392 @ 10240 bytes/record (10.000 Kbytes) Total bytes transferred: 4014080 (3920.000 Kbytes, 3.828 Mbytes) Average transfer rates: 38486 bytes/sec, 37.584 Kbytes/sec Number I/O's per second: 3.758 Total passes completed: 1/1 Total errors detected: 0/1 Total elapsed time: 01m44.30s Total system time: 00m00.05s Total user time: 00m00.15s Starting time: Wed Jan 19 17:14:16 2000 Ending time: Wed Jan 19 17:16:03 2000 tru64% mv dt.d dtx.d tru64% dt if=/dev/rfd0c of=- bs=10k iomode=copy enable=multi | tar xvf - blocksize = 20 x dt.d x dt.d/dt.c, 79238 bytes, 155 tape blocks . . . x dt.d/tape0c.log, 6447 bytes, 13 tape blocks Please insert volume #2 in drive /dev/rfd0c... Press ENTER when ready to proceed: [ Continuing at record #145, bytes read so far 1474560... ] x dt.d/rmt0h.log, 28482 bytes, 56 tape blocks . . . Total Statistics: Input device/file name: /dev/rfd0c (Device: floppy, type=disk) Type of I/O's performed: sequential Data operation performed: Copied '/dev/rfd0c' to '-'. Total records processed: 393 @ 10240 bytes/record (10.000 Kbytes) Total bytes transferred: 2017280 (1970.000 Kbytes, 1.924 Mbytes) Average transfer rates: 20793 bytes/sec, 20.306 Kbytes/sec Number I/O's per second: 4.051 Total passes completed: 0/1 Total errors detected: 0/1 Total elapsed time: 01m37.01s Total system time: 00m00.06s Total user time: 00m00.00s Starting time: Wed Jan 19 17:18:10 2000 Ending time: Wed Jan 19 17:19:50 2000 tru64% diff -r dt.d dtx.d tru64%