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Conference decwet::advfs_support

Title:	AdvFS Support/Info/Questions Notefile
Notice:	note 187 is Freq Asked Questions;note 7 is support policy
Moderator:	DECWET::DADDAMIO

Created:	Wed Jun 02 1993
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	1077
Total number of notes:	4417

1041.0. "showfdmn inconsistency.. DU v3.2C" by EVTAI1::BROCHARD (Manuel Brochard - French CSC) Mon Apr 14 1997 10:07

    
    	Hi,
    
    	One customer is running old Digital Unix v3.2c with dupatch 
    	DUV32CAS00001-19961217.tar installed.
    
    	This week-end he made some maintenance operation on 1 domain, con-
    	taining 1 fileset.
    	The domain was 4 disks :
    	Log disk rz1c and rz9 rz20 and rz28.
    
    	He added rz12, then remove rz9. shutdown the system,
    	Physicaly swap rz9 (replace a RZ29-VA by a RZ29-VW in the internal 
    	storageWorks of the Alpaserver 2100, and then rebooted.
    
	After, he tried to add the new rz9 (after disklabel) and remove rz12
    
    	Adding rz9 was successfull.
    	During the remove operation of rz12, he saw that the output of
    	showfdmn was corrupt : rz28 was listed 2 times !
    	one as log disk instead rz1 and one normaly as previous.
    
    	The /etc/fdmns/domain_name was correct (links OK) and then tried to
    	reboot..
    
    	It finishes by multiple advfs exception and restauration from the
    	previous backup....
    
    	I saw previous notes about such inconsistency, 
    	Is there specials conditions when it appears ?
    
    
    Thanks for info,
    
    
    	Manuel.

T.R	Title	User	Personal Name	Date	Lines
1041.1	What are the exceptions?	NNTPD::"[email protected]"	jwang	`Wed Apr 16 1997 13:56`	4
	You mentioned there are two entries for the last vd after removing a disk. Any error messages during the vol removal? What are the multiple AdvFS exceptions you saw? [Posted by WWW Notes gateway]
1041.2	thx	EVTAI1::BROCHARD	Manuel Brochard - French CSC	`Thu Apr 17 1997 08:33`	7
	Hi, Thanks for looking at this note. I'll post more info when i'll get customer tape. Manuel.
1041.3	morte info...	EVTAI1::BROCHARD	Manuel Brochard - French CSC	`Mon Apr 21 1997 05:40`	53
	Hi, Apparently the customer didn't noticed any error during addvol/rmvol. Yes, it was the last vd (rz28) which was duplicated, and rz1 disapears Summary of operations : initial add rz12 remove rz9 re-add rz9 remove rz12 rz1 rz1 rz1 rz1 rz1 rz9 rz9 rz12 rz9 rz9 rz20 rz12 rz20 rz12 rz20 rz28 rz20 rz28 rz20 rz28 rz28 rz28 final corrupted output : rz28 <-- 2 times rz28 rz9 rz20 rz28 <-- panic while running bcheckrc at boot time : > ADVFS: using 15195 buffers containing 118.71 megabytes of memory > ADVFS EXCEPTION > Module = 10, Line = 4065 Here's the stack of the panic. I can make crash-data, vmcore and vmunix available if needed. 0 boot 1 panic 2 advfs_sad 3 load_from_shadow_rec 4 load_inmem_xtnt_map 5 x_create_inmem_xtnt_map 6 bs_map_bf 7 rbf_access_one_int 8 rbf_access_int 9 bs_access 10 bs_fragbf_open 11 advfs_mountfs 12 msfs_mount 13 mount 14 syscall 15 _Xsyscall Thanks, Manuel.
1041.4	volume confusion in advfs v3.2c	RUSURE::KATZ		`Fri Apr 25 1997 12:31`	6
	I recall this symptom in earlier versions of v3.2c Please check to make sure the patch install worked correctly. There has been discussion of not being able to install easily unless the user first backs out all patches (official and unofficial) so that dupatch encounters no conflicts.