How to handle incremental backup failures after a system reboot.
revision 1/16/2014
If you have enabled the [Change Tracking persistent],this products snapshot driver startup and shutdown is handled by system startup/shutdown scripts （/etc/rc.d/rc.sysinit and /etc/rc.d/init.d/halt）. The installer will apply the appropriate patch by checking the version of initscripts.rpm ※ 1 in the package distributor provides.
If a newer (than the release date of the product installer) initscripts.rpm is installed on the system , the patch may not be applied automatically. Follow the procedures below to add the appropriate descriptor, or apply the appropriate patch to the system startup/shutdown script. When this situation occurs even if the [Change Tracking Persistent] is enabled, incremental backups may fail.
※1：/etc/rc.d/rc.sysinit and/etc/rc.d/init.d/halt are files included in initscripts.rpm
Run the following command from the console to verify the presence or absence of a patch from the server.
# aipmng --modupdate --patches
※ An internet connection is required to get a patch from the server.
The patch will be applied to the local system. If it is successful the message "Successfully applied." will be displayed.
At system start up (shutdown) the snapshot driver will also be able to start up (shutdown) and backups should function normally.
The message "No patch files found for this system." will be displayed.
In this case an appropriate patch does not yet exist, please contact technical support.
If your environment has customized /etc/rc.d/rc.sysinit or /etc/rc.d/init.d/halt scripts, you cannot add descriptions to the start p shutdown scripts through the patch file provided by us.Please add the descriptions on your own using the following information.
After the initialization of related device mappers is complete and before the repair mode integrity check (fsck) is run on all file systems, including the root ("/") add the following red items.
if [ -f /etc/crypttab ]; then
init_crypto 0
fi
# start tracking
if [ -f /etc/aipsnap -a ! -f /.aipsnap_dirty ]; then
/etc/aipsnap
start --tracking
fi
if [ -f /fastboot ] || strstr "$cmdline" fastboot ;
then
fastboot=yes
fi
After all the file systems are re-mounted as read only add the following read items.
# Remount read only anything
that's left mounted.
# echo $"Remounting remaining filesystems readonly"
mount | awk '{ print $1,$3 }' | while read dev dir;
do
fstab-decode mount -n -o
ro,remount $dev $dir
done
# now clear dirty flag on tracking table
[ -f /etc/aipsnap ] && /etc/aipsnap clear_dirtyflag
# If we left mdmon's running wait for the raidsets to
become clean
if [ -n "$OMITARGS" ]; then
mdadm --wait-clean --scan
fi
Please refer to sample patch files installed with this product in /opt/NetJapan/patch（rc.sysinit-sample.patch、halt-sample.patch）.
If you have questions regarding your specific system please contact technical support.