DiskSuite: Breaking mirrors. Post: 94285

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Operating Systems Solaris DiskSuite: Breaking mirrors. Post 94285 by reborg on Wednesday 28th of December 2005 06:22:59 PM

12-28-2005

Administrator Emeritus

Quote:

Originally Posted by Just Ice

i doubt that /var was ever mounted ro as that would mean that the system would have complained way lot earlier as the system does write to /var/adm/messages fairly regularly even if it doesn't need to write to /var/adm/wtmpx ... i'm convinced that the filesystem had some corruption that gave it a problem booting up ... btw, what was the last thing that happened to the server prior to it having the boot problem? was it patched and then rebooted? if patched, was the server in single-user mode or without regular user logins/processes at all during the patching?

Actually, that's not quite right. A system where var (or even root if var is on root disk) is ro then the first complaint will be that message indicated by BOHF, if you have a spare test box try it and see. This somtimes does happen even after an fsck has completed and the command

remount -o rw,remount /var

is required to remount it read-write, i think BOHF has already said that he tried this, it might appear that a reboot should fix this but it is not always the case. I have seen this message many times but it has never that I can recall been the precursor to a disk failure nor even left the system unrecoverable.

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wtmpx

utmpx(4)							   File Formats 							  utmpx(4)

NAME

       utmpx, wtmpx - utmpx and wtmpx database entry formats

SYNOPSIS

       #include <utmpx.h>
       /var/adm/utmpx
       /var/adm/wtmpx

DESCRIPTION

       The utmpx and wtmpx files are extended database files that have superseded the obsolete utmp and wtmp database files.

       The  utmpx database contains user access and accounting information for commands such as who(1), write(1), and login(1). The wtmpx database
       contains the history of user access and accounting information for the  utmpx database.

USAGE

       Applications should not access these databases directly, but should use the functions described on the getutxent(3C) manual page to  inter-
       act with the utmpx and wtmpx databases to ensure that they are maintained consistently.

FILES

       /var/adm/utmpx	       user access and adminstration information

       /var/adm/wtmpx	       history of user access and adminstrative information

SEE ALSO

       getutxent(3C), wait(3C)wait.h(3HEAD)

SunOS 5.10							    22 Feb 1999 							  utmpx(4)