[Info-vax] Pagefile is not showing on 8.2 running on Alpha

[AEF]

On Aug 26, 9:26 am, Jan-Erik Soderholm <jan-erik.soderh... at telia.com>
wrote:
> On 2010-08-26 15:19, AEF wrote:
>
>
>
> > On Aug 26, 12:41 am, Jeremy Begg<jeremy.removet... at vsm.com.au>  wrote:
> >> Hello,
>
> >> CY wrote:
> >>> On Aug 25, 3:56 pm, Joseph Huber<joseph.hu... at NOSPAM.web.de>  wrote:
>
> >>>> CY wrote:
[...]
> >> What do you see when you try
>
> >>       $ show log/full sys$sysdevice
> >>       $ show log/full disk$alphasys
> >>       $ show dev dsa0
> >>       $ mcr sysman
> >>       SYSMAN>  PARAM USE CURRENT
> >>       SYSMAN>  PARAM SHOW SHADOWING
> >>       SYSMAN>  PARAM SHOW SHADOW_SYS_DISK
> >>       SYSMAN>  PARAM SHOW SHADOW_SYS_UNIT
> >>       SYSMAN>  EXIT
> >>       $
>
> >> These will identify which volume you're actually booting from, and if your
> >> system disk is actually DSA0.
>
> > Do you mean which _member_ it boots from?
>
> You can see (in the running VMS system) which member
> it actualy *booted* from. As this from my lab/test
> system that happens to run from a single disk
> shadow set at the moment :
>
> $ sh dev d
>
> Device                  Device           Error    Volume
>   Name                   Status           Count     Label
> DSA10:                  Mounted              0  ALPHASYS
> $1$DKA0:      (OSSBY1)  ShadowSetMember      0  (member of DSA10:)
> $1$DKA500:    (OSSBY1)  Mounted              0  DISK3
> ...
> ...
>
> So DKA0: is the boot device.
>
> VMS never *boots* from a (HBS) shadowset, at least not initialy...

You lost me. You have only one member! That makes it too easy.

The only way I know to find out on a running system with a system disk
shadow set that has a minimum of two members is to see which is the
master member of SYS$SYSDEVICE using ANAL/SYS:

$ MCR SYSGEN
SYSGEN>  SHOW SHADOW_SYS_UNIT
Parameter Name            Current    Default     Min.     Max.
Unit  Dynamic
--------------            -------    -------    -------  -------
----  -------
SHADOW_SYS_UNIT                 0          0         0      9999 Unit
SYSGEN>

            ----- SHAD Device summary for DSA0  -----

Device $1$DKA100 ... Master Member
  Index 0 Status     000000A0 src,valid
  UCB 83561EF0   VCB 83A1B340   Unit Id. 11610064 00000001
        Member Read Bias 0000002A
Device $1$DKA0
  Index 1 Status     000000A0 src,valid
  UCB 83A08000   VCB 83A704C0   Unit Id. 11610000 00000001
        Member Read Bias 0000002A
    Press RETURN for more.
SDA>

SHADOW_SYS_UNIT is the virtual unit number:

  SHADOW_SYS_UNIT

       Use this parameter for Phase II shadowing only. The SHADOW_SYS_
       UNIT parameter is an integer value that contains the virtual
unit
       number of the system disk. The default value is 0. The maximum
       value allowed is 9999. This parameter is effective only when
the
       SHADOW_SYS_DISK parameter has a value of 1. This parameter
should
       be set to the same value on all nodes booting off a particular
       system disk shadow set. See Volume Shadowing for OpenVMS for
more
       information about setting system parameters for volume
shadowing.

I've never seen an exception to "master system disk shadow set member"
= "boot device" on my systems. A counterexample is welcome.

AEF