Recover from lost log volume

How do I recover from total loss of my log volume? I can restore
database backups ok, but when, after restoring the backups, I try to
change the database to online mode (from dbmgui) I get
 
-24988 sql error [db_online -f] -902,I/O error.
 
In knldiag:
 
2007-01-29 14:23:20       0x14     11000 vattach
'/var/opt/sdb/data/MAXDB1/log/DISKL0001' T92 failed
2007-01-29 14:23:20       0x14 ERR    26 IOMan    Attach error on Log
volume 1: Could not open volume

/var/opt/sdb/data/MAXDB1/log/DISKL0001 is the lost log volume. I have
tried creating the file (just an empty file) and that makes no
difference. I found something in the mailing archive about 'util_execute
clear log' to reinit the log, but that crashes the database.
 
What am I missing?
 
Thanks
 
David Lane
 
 

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