[Info-vax] delay in startup

[Fred Zwarts (KVI)]

"Phillip Helbig---undress to reply"  wrote in message 
news:jkkbit$a98$1 at online.de...
>
>While I was travelling, power went off for a few hours for
>maintenance.  (This is the first time I have ever experienced planned
>outage and only the second or third unplanned.)  I thought about logging
>in and shutting everything down cleanly, but decided to use it as a hard
>test instead.  Two of three nodes came back up; that was expected since
>the battery in one of the PWS is dead (now I know which one).  Can this
>be replaced by a standard off-the-shelf battery?  Everything else came
>up OK, but I am puzzled by this:
>
>   13-MAR-2012 17:35:38.00 MINNIM 13-MAR-2012 17:38:31.84
>   13-MAR-2012 14:46:40.00 JANDER 13-MAR-2012 17:38:59.19
>
>These two lines are generated by the following code:
>
>   $    OPEN/APPEND/SHARE BOOT_HISTORY CLUSTER_MANAGER:BOOT.HISTORY
>   $    WRITE BOOT_HISTORY "''F$GETSYI("BOOTTIME")' ''NODENAME' ''F$TIME()"
>   $    CLOSE BOOT_HISTORY
>
>The three minutes for MINNIM between booting and writing to the file is
>about what I expect.  JANDER waited for MINNIM to boot (quorum is 2), so
>that explains the almost three-hour wait between booting and writing for
>JANDER, but why did MINNIM boot almost three hours after JANDER?  All
>the nodes lost power at the same time.
>
>Relevant system parameters seem to be:
>
>   SHADOW_MBR_TMO                300
>   MVTIMEOUT                    3600
>   SHADOW_SYS_WAIT               480
>   RECNXINTERVAL                  20
>
>all of which are much shorter than three hours.

There is not much information, so I can only guess. A possible scenario is 
that at 14:46 the power returned. Both systems started, but MINNIM has a 
problem with autonegotiation, because the network switch is also booting. No 
good communication could be established between the two nodes. They both 
start to wait for quorum. At 17:35, for some reason (a power glitch?) MINNIM 
crashed and rebooted again. Now there was no problem with autonegotiation, 
the communication was restored, quorum was found and the cluster was formed.