[Simh] Size of disks created by Simulator

[Bucher, Andreas (Andreas)** CTR **]

Hi, 

that's quite easy: 

1)
Either in the SIMH console or in the VAX.INI file used to configure your simulation, use the following commands:

{from VAX.INI}

; This virtual machine has 256M memory (cpu extend to enable mem >64M)
; note: set cpu extend is not needed, as it is implicitely included in the 256m setting
;set cpu extend
set cpu 256m

; Define disk drive types. (RAUSER=sizeMB is variable size)
set rq0 ra92
set rq1 rauser=2000
set rq2 cdrom
;set rq3 cdrom
set rq3 rauser=20000
; the latter will define DUA3: in VMS as ~20GB = ~40Mio blocks

; Attach defined drives to local files
attach rq0 d0.dsk
attach rq1 d1.dsk
attach rq3 d3.dsk
; d3.dsk will be the ~20GB image file of DUA3:

; Attach the CD-ROM to its image file (read-only) 
attach -r rq2 ..\images\vms072.iso

2)
then boot up the system:
simh> boot cpu
(or put this command in the VAX.INI, and launch the VAX emulator)

3) 
Once VMS has loaded, you need to initialize the newly created disk:
$ init dua3: test

This may take a while, as now, the d3.dsk container file on the host is written, as VMS initializes the file system inside it.

4)
Next, mount it:
$ mount dua3: test

5)
If you list your devices now, you should see about 40M Blocks = 20GB

$ show dev d

Device                  Device           Error    Volume         Free  Trans Mnt
 Name                   Status           Count     Label        Blocks Count Cnt
VXAB03$DUA0:            Mounted              0  SYS1            762768   283   1
VXAB03$DUA1:            Mounted              0  DAT1           3797752     1   1
VXAB03$DUA2:            Online               0
VXAB03$DUA3:            Mounted alloc        0  TEST          39079352     1   1

6) Your 20GB disk is now usable:
$ dir dua3:[000000]

Directory DUA3:[000000]

000000.DIR;1        BACKUP.SYS;1        BADBLK.SYS;1        BADLOG.SYS;1
BITMAP.SYS;1        CONTIN.SYS;1        CORIMG.SYS;1        INDEXF.SYS;1
SECURITY.SYS;1      VOLSET.SYS;1

Total of 10 files.

7) The next time you boot um VMS and need this disk, you only have to mount it.


Hope this helps !

Kind Regards,
Andreas


> -----Original Message-----
> From: simh-bounces at trailing-edge.com [mailto:simh-bounces at trailing-
> edge.com] On Behalf Of priya chincholikar
> Sent: Montag, 11. November 2013 12:39
> To: Bruce Claremont
> Cc: simh at trailing-edge.com
> Subject: Re: [Simh] Size of disks created by Simulator
> 
> Hi,
> 
> I understand that sim> SET RQ1 RAUSER=4096 will give me 4096 MB space.
> I want to create atleast 20GB disk size.
> I read that
> "RAUSER is a "user specified" disk; the user can specify the size of
> the disk in either MB (1000000 bytes) or logical block numbers (LBN's,
> 512 bytes each). The minimum size is 5MB; the maximum size is 2GB
> without extended file support, 1TB with extended file support "
> So that means its possible to create a 20 GB disk.. How do I proceed ?
> 
> - Priya
> 
> 
> On Fri, Nov 8, 2013 at 9:36 PM, Bruce Claremont
> <Bruce.Claremont at migrationspecialties.com> wrote:
> 
> 
> 	The easiest way to increase the disk size under VMS is to create
> new disks, then use BACKUP /IMAGE to move transfer the data from old to
> new.
> 
> 
> 	At 05:52 AM 11/8/2013, priya chincholikar wrote:
> 
> 
> 		Hi,
> 
> 		I have a question about the disks created during
> simulation.
> 		I noticed that 3 disks get attached when we run the
> simulator for the first time.
> 
> 		[root at localhost data]# ls
> 		cd.iso  d0.dsk  d1.dsk  d2.dsk ka655x.bin  nvram.bin
> 
> 		ford/system$ sho dev d
> 
> 		Device                  Device           Error    Volume
> Free
> 
> 		 Name                   Status           Count     Label
> Blocks
> 		DNFS0:                  Online                 0
> 		FORD$DUA0:          Mounted             0      FORD
> 2371878
> 		FORD$DUA1:          Mounted alloc     0      DATA1
> 2940579
> 		FORD$DUA2:          Mounted alloc     0      DATA2
> 2940579
> 		FORD$DUA3:           Online                0
> 
> 
> 		Is there a way to increase the size of any these disks ?
> 
> 		- Priya
> 
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> 
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> 	Migration Specialties International, Inc.
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> 
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