Log all LVM commands
[root@test ~]# cp /etc/lvm/lvm.conf /etc/lvm/lvm.conf_backup
[root@test ~]# vi /etc/lvm/lvm.conf
log {
# Controls the messages sent to stdout or stderr.
# There are three levels of verbosity, 3 being the most verbose.
verbose = 0
# Should we send log messages through syslog?
# 1 is yes; 0 is no.
syslog = 1
# Should we log error and debug messages to a file?
# By default there is no log file.
#file = "/var/log/lvm2.log"
# Should we overwrite the log file each tisme the program is run?
# By default we append.
overwrite = 0
# What level of log messages should we send to the log file and/or syslog?
# There are 6 syslog-like log levels currently in use - 2 to 7 inclusive.
# 7 is the most verbose (LOG_DEBUG).
level = 0
# Format of output messages
# Whether or not (1 or 0) to indent messages according to their severity
indent = 1
# Whether or not (1 or 0) to display the command name on each line output
command_names = 0
# A prefix to use before the message text (but after the command name,
# if selected). Default is two spaces, so you can see/grep the severity
# of each message.
prefix = " "
# To make the messages look similar to the original LVM tools use:
# indent = 0
# command_names = 1
# prefix = " -- "
# Set this if you want log messages during activation.
# Don't use this in low memory situations (can deadlock).
# activation = 0
}
2 modifications to be done
Uncomment the line # file = “/var/log/lvm2.log
Change the level = 0 to a value between 2 and 7.
What level of log messages should we send to the log file and/or syslog?
# There are 6 syslog-like log levels currently in use - 2 to 7 inclusive.
# 7 is the most verbose (LOG_DEBUG).
Enter level=7
save and exit.
Just test it with the lvm command and view the logs
This is not the right syntax, just showed here for example.
[root@test ~]# lvcreate VG1
Please specify either size or extents
Run `lvcreate --help' for more information.
[root@test ~]# tail -f /var/log/lvm2.log
activate/activate.c:471 Getting target version for striped
ioctl/libdm-iface.c:1687 dm versions OF [16384] (*1)
lvcreate.c:363 Please specify either size or extents
lvcreate.c:768 <backtrace>
lvmcmdline.c:623 Run `lvcreate --help' for more information.
lvmcmdline.c:1123 Completed: lvcreate VG1
cache/lvmcache.c:1602 Wiping internal VG cache
metadata/vg.c:74 Freeing VG #orphans_lvm1 at 0x1f09d90.
metadata/vg.c:74 Freeing VG #orphans_pool at 0x1f0e600.
metadata/vg.c:74 Freeing VG #orphans_lvm2 at 0x1f13110.
[root@test ~]# cp /etc/lvm/lvm.conf /etc/lvm/lvm.conf_backup
[root@test ~]# vi /etc/lvm/lvm.conf
log {
# Controls the messages sent to stdout or stderr.
# There are three levels of verbosity, 3 being the most verbose.
verbose = 0
# Should we send log messages through syslog?
# 1 is yes; 0 is no.
syslog = 1
# Should we log error and debug messages to a file?
# By default there is no log file.
#file = "/var/log/lvm2.log"
# Should we overwrite the log file each tisme the program is run?
# By default we append.
overwrite = 0
# What level of log messages should we send to the log file and/or syslog?
# There are 6 syslog-like log levels currently in use - 2 to 7 inclusive.
# 7 is the most verbose (LOG_DEBUG).
level = 0
# Format of output messages
# Whether or not (1 or 0) to indent messages according to their severity
indent = 1
# Whether or not (1 or 0) to display the command name on each line output
command_names = 0
# A prefix to use before the message text (but after the command name,
# if selected). Default is two spaces, so you can see/grep the severity
# of each message.
prefix = " "
# To make the messages look similar to the original LVM tools use:
# indent = 0
# command_names = 1
# prefix = " -- "
# Set this if you want log messages during activation.
# Don't use this in low memory situations (can deadlock).
# activation = 0
}
2 modifications to be done
Uncomment the line # file = “/var/log/lvm2.log
Change the level = 0 to a value between 2 and 7.
What level of log messages should we send to the log file and/or syslog?
# There are 6 syslog-like log levels currently in use - 2 to 7 inclusive.
# 7 is the most verbose (LOG_DEBUG).
Enter level=7
save and exit.
Just test it with the lvm command and view the logs
This is not the right syntax, just showed here for example.
[root@test ~]# lvcreate VG1
Please specify either size or extents
Run `lvcreate --help' for more information.
[root@test ~]# tail -f /var/log/lvm2.log
activate/activate.c:471 Getting target version for striped
ioctl/libdm-iface.c:1687 dm versions OF [16384] (*1)
lvcreate.c:363 Please specify either size or extents
lvcreate.c:768 <backtrace>
lvmcmdline.c:623 Run `lvcreate --help' for more information.
lvmcmdline.c:1123 Completed: lvcreate VG1
cache/lvmcache.c:1602 Wiping internal VG cache
metadata/vg.c:74 Freeing VG #orphans_lvm1 at 0x1f09d90.
metadata/vg.c:74 Freeing VG #orphans_pool at 0x1f0e600.
metadata/vg.c:74 Freeing VG #orphans_lvm2 at 0x1f13110.
