系统显示逻辑日志和备份的地点都是/home/informix/etc/backup
cat onconfig.prod | grep -i tape
# ontape Tape Device Configuration Parameters
# TAPEDEV - The tape device path for backups. To use standard
# TAPEBLK - The tape block size, in KB, for backups
# TAPESIZE - The maximum amount of data to put on one backup
# tape. Acceptable values are 0 (unlimited) or any
# positive integral multiple of TAPEBLK.
TAPEDEV /home/informix/etc/backup
TAPEBLK 32
TAPESIZE 0
# ontape Logial Log Tape Device Configuration Parameters
# LTAPEDEV - The tape device path for logical logs
# LTAPEBLK - The tape block size, in KB, for backing up logical
# LTAPESIZE - The maximum amount of data to put on one logical
# log tape. Acceptable values are 0 (unlimited) or any
# positive integral multiple of LTAPEBLK.
LTAPEDEV /home/informix/etc/backup
LTAPEBLK 32
LTAPESIZE 0
然后多产生几个逻辑日志
onmode -l
onmode -c
onmode -l
onmode -c
但是 很奇怪，为什么没有日志产生？
/home/informix/etc/backup>pwd
/home/informix/etc/backup
ls显示的是空
使用ontape -a可以产生日志备份
ontape -a
Performing automatic backup of logical logs.
File created: /home/informix/etc/backup/ldz_0_Log0000000940
File created: /home/informix/etc/backup/ldz_0_Log0000000941
File created: /home/informix/etc/backup/ldz_0_Log0000000942
File created: /home/informix/etc/backup/ldz_0_Log0000000943
Do you want to back up the current logical log? (y/n) y
File created: /home/informix/etc/backup/ldz_0_Log0000000944
但是我想让系统的逻辑日志满的时候会自定归档日志到/home/informix/etc/backup中，于是使用onmode -l ,onmode -c来手动切日志，发现无法产生日志
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