RT-11 DU configuration

From: CLASSICCMP_at_trailing-edge.com <(CLASSICCMP_at_trailing-edge.com)>
Date: Sun Aug 15 14:55:48 1999

>Now that I've got it back running V5.4 I noticed something interesting,
>under V5.3 when you do a 'SHOW DEV' in the section for DU it lists the how
>DU0: through DU7: are configured. This is very nice when you've got
>partitions ranging across a couple disks. However, this feature seems to
>be missing under V5.4, is there any way to get this information, or do I
>simply need to write it down?

Do a "SHOW DEV:DU" and you'll see it - for example, on my 5.7 system:

.show dev:du

Device Status CSR Vector(s)
------ ------ --- ---------
  DU Resident 172150 154 150 144 140

          DU0: is set PORT = 0, UNIT = 0, PART = 0
          DU1: is set PORT = 0, UNIT = 1, PART = 0
          DU2: is set PORT = 0, UNIT = 2, PART = 0
          DU3: is set PORT = 0, UNIT = 3, PART = 0
          DU4: is set PORT = 0, UNIT = 4, PART = 0
          DU5: is set PORT = 0, UNIT = 5, PART = 0
          DU6: is set PORT = 0, UNIT = 6, PART = 0
          DU7: is set PORT = 0, UNIT = 7, PART = 0
          D10: is set PORT = 0, UNIT = 8, PART = 0
          D11: is set PORT = 0, UNIT = 9, PART = 0
          D12: is set PORT = 0, UNIT = 10, PART = 0
          D13: is set PORT = 0, UNIT = 11, PART = 0
          D14: is set PORT = 0, UNIT = 12, PART = 0
          D15: is set PORT = 0, UNIT = 13, PART = 0
          D16: is set PORT = 0, UNIT = 14, PART = 0
          D17: is set PORT = 0, UNIT = 15, PART = 0
          D20: is set PORT = 0, UNIT = 16, PART = 0
          D21: is set PORT = 0, UNIT = 17, PART = 0
          D22: is set PORT = 0, UNIT = 18, PART = 0
          D23: is set PORT = 0, UNIT = 19, PART = 0
          D24: is set PORT = 0, UNIT = 20, PART = 0
          D25: is set PORT = 0, UNIT = 21, PART = 0
          D26: is set PORT = 0, UNIT = 22, PART = 0
          D27: is set PORT = 0, UNIT = 23, PART = 0
          D30: is set PORT = 0, UNIT = 3, PART = 0
          D31: is set PORT = 0, UNIT = 3, PART = 1
          D32: is set PORT = 0, UNIT = 3, PART = 2
          D33: is set PORT = 0, UNIT = 3, PART = 3
          D34: is set PORT = 0, UNIT = 3, PART = 4
          D35: is set PORT = 0, UNIT = 3, PART = 5
          D36: is set PORT = 0, UNIT = 3, PART = 6
          D37: is set PORT = 0, UNIT = 3, PART = 7
          D40: is set PORT = 0, UNIT = 4, PART = 0
          D41: is set PORT = 0, UNIT = 4, PART = 1
          D42: is set PORT = 0, UNIT = 4, PART = 2
          D43: is set PORT = 0, UNIT = 4, PART = 3
          D44: is set PORT = 0, UNIT = 4, PART = 4
          D45: is set PORT = 0, UNIT = 4, PART = 5
          D46: is set PORT = 0, UNIT = 4, PART = 6
          D47: is set PORT = 0, UNIT = 4, PART = 9
          D50: is set PORT = 0, UNIT = 4, PART = 8
          D51: is set PORT = 0, UNIT = 4, PART = 9
          D52: is set PORT = 0, UNIT = 4, PART = 10
          D53: is set PORT = 0, UNIT = 43, PART = 0
          D54: is set PORT = 0, UNIT = 44, PART = 0
          D55: is set PORT = 0, UNIT = 45, PART = 0
          D56: is set PORT = 0, UNIT = 46, PART = 0
          D57: is set PORT = 0, UNIT = 47, PART = 0
          D60: is set PORT = 0, UNIT = 4, PART = 0
          D61: is set PORT = 0, UNIT = 5, PART = 0
          D62: is set PORT = 0, UNIT = 6, PART = 0
          D63: is set PORT = 0, UNIT = 7, PART = 0
          D64: is set PORT = 0, UNIT = 8, PART = 0
          D65: is set PORT = 0, UNIT = 9, PART = 0
          D66: is set PORT = 0, UNIT = 10, PART = 0
          D67: is set PORT = 0, UNIT = 11, PART = 0
          D70: is set PORT = 0, UNIT = 4, PART = 1
          D71: is set PORT = 0, UNIT = 5, PART = 1
          D72: is set PORT = 0, UNIT = 6, PART = 1
          D73: is set PORT = 0, UNIT = 7, PART = 1
          D74: is set PORT = 0, UNIT = 8, PART = 1
          D75: is set PORT = 0, UNIT = 9, PART = 1
          D76: is set PORT = 0, UNIT = 10, PART = 1
          D77: is set PORT = 0, UNIT = 11, PART = 1

Another thing that helps with keeping tracks of large numbers
of partitions is to assign descriptive Volume ID and owner
fields to the partitions. For example:

.init ld4:/volu
LD4:/Initialize; Are you sure? Y
Volume ID? junk
Owner? me

.dir/vol ld4:

 Volume ID: junk
 Owner : me

 0 Files, 0 Blocks
 1986 Free blocks

Presumably, you'll find something more useful than "junk" and "me"
to fill the fields in with :-)

-- 
 Tim Shoppa                        Email: shoppa_at_trailing-edge.com
 Trailing Edge Technology          WWW:   http://www.trailing-edge.com/
 7328 Bradley Blvd		   Voice: 301-767-5917
 Bethesda, MD, USA 20817           Fax:   301-767-5927
Received on Sun Aug 15 1999 - 14:55:48 BST

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