Monitoring file systems backup Post: 302901023

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Special Forums UNIX and Linux Applications Infrastructure Monitoring Monitoring file systems backup Post 302901023 by frhling on Saturday 10th of May 2014 04:34:12 PM

05-10-2014

Registered User

Monitoring file systems backup

Hello,
I have some questions.
There are some File systems which are located on a SAN. There are two scenarios:
1) Some file systems are permanently mounted on certain servers
2) Others are part of a high availability cluster

In case of a cluster the needed file systems for a certain application are all visible to all cluster nodes (cluster servers) at the same time. A certain node is assigned to primarily run a certain service. Therefore it mounts the file system and provides the service as a new, virtual IP. The trick is now, that the virtual IP and virtual name can also be brought up by another cluster node in case the first one fails. This by itself is not a problem but it has turned out that this provides a problem for the backup because the backup is naturally file system oriented. From a user (or calling services) perspective the user only talks to the virtual IP and name, which never changes. He has no idea that this IP is in reality running on a physical cluster node with its own IP and name and on top of that the cluster nodes can even change.

by the default log file, I just get the machine names, mount points, full backup and incremental backups.

Now the question is how to be sure if file systems are correctly backed up?

I can think of some aproached:
1- check the list of file system and check the list of backed up files and compare to see if those FS are in back up. we pay attention to timestamp
2- the same as above but this time comparing also the size
3- check if machines in general are backed up
4- MD5 checksum

can someone give me any other idea and in general some suggestion?

Thanks

frhling

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umountall

mountall(1M)															      mountall(1M)

NAME

       mountall, umountall - mount and unmount multiple file systems

SYNOPSIS

       FStype] [file_system_table |
       FStype]

DESCRIPTION

       is  used  to  mount  file  systems  according  to  file_system_table.  By default, is the file_system_table.  If a dash is specified, reads
       file_system_table from the standard input; the standard input must be in the same format as the

       Before each file system is mounted, a check is done using (see fsck(1M)) to ensure that the file system is mountable.  If the  file  system
       is not mountable, it is repaired by before the mount is attempted.

       causes all mounted file systems except the non-removable file systems such as to be unmounted.

   Options
       and recognize the following options:

	      Specify the file system type
			     (FStype) to be mounted or unmounted.

	      Specify action on local file systems only.

	      Specify action on remote file systems only.

	      Send a	     signal to processes that have files opened.

	      Attempt to mount all the unmounted file systems. This option will not perform the file system consistency check and repair.

	      Perform the file system consistency check and repair on all unmounted file system. This option will not mount the file systems.

DIAGNOSTICS

       Error and warning messages may originate from or See fsck(1M), mount(1M), or fuser(1M) to interpret the error and warning messages.

EXAMPLES

       Mount all unmounted file systems listed in

       Mount all local file systems listed in

       Mount all remote file systems listed in

       Mount all local hfs file systems:

       Unmount all NFS file systems and kill any processes that have files opened in the file system:

WARNINGS

       especially with the option, should be used with extreme caution, because it can cause severe damage.

       The option may not be available in future releases.

       may not be effective with some cases of LOFS file systems.

FILES

       Static information about the file systems
       Mounted file system table

SEE ALSO

       fsck(1M), mount(1M), fuser(1M), mnttab(4), fstab(4), signal(2)

																      mountall(1M)