On 19/09/11 23:04, Sampsa Laine wrote:
This time by adding volume shadowing:
I added the following to MODPARAMS.DAT:
! Volume Shadowing Parameters:
SHADOWING=2 ! Enables phase II shadowing
SHADOW_SYS_DISK=1 ! Enables system disk shadowing
SHADOW_SYS_UNIT=7 ! Specifies 7 as the virtual unit number
of the system disk
SHADOW_MAX_COPY=3 ! Specifies that 3 parallel copies can occur at one time
SHADOW_MBR_TMO=10 ! Allows 10 seconds for physical members to fail over
! before removal from the shadow set
Then ran:
@SYS$UPDATE:AUTOGEN SAVPARAMS SETPARAMS FEEDBACK
Rebooted with save feedback, when it comes up, it fails:
**** OpenVMS Alpha Operating System V8.3 - BUGCHECK ****
** Bugcheck code = 00000B14: SHDWREQALLOC, Allocation class is required for shadow set
members
** Crash CPU: 00000000 Primary CPU: 00000000 Node Name: CHIMPY
** Supported CPU count: 00000001
** Active CPUs: 00000000.00000001
** Current Process: SYSINIT
** Current PSB ID: 00000001
** Image Name: SYSINIT.EXE
Easiest way to fix?
You need to add an ALLOCLASS definition to MODPARAMS.DAT, or use SYSGEN to define, for
example:
$ MCR SYSGEN
SYSGEN> USE CURRENT
SYSGEN> SET ALLOCLASS 100
SYSGEN> WRITE CURRENT
Ctrl-Z
then reboot. If you use SYSGEN then make MODPARAMS.DAT match.
You'll probably need a conversational boot to get this point.
See here:
http://lakesdev.blogspot.com/2009/09/volume-shadowing-system-disk-on-vax.ht…
Mark.