05-10-2014
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
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LEARN ABOUT DEBIAN
4s-backend-setup
4S-BACKEND_SETUP(1J) 4store 4S-BACKEND_SETUP(1J)
NAME
4s-backend-setup -- Create a new 4store KB
SYNOPSIS
4s-backend-setup kbname [--node node-number] [--cluster cluster-size] [--segments segment-count] kb-name
--node Number of this node in the cluster, values range from 0 to cluster-size - 1. The default is 0.
--cluster
The number of nodes in the cluster. The default is 1.
--segments
The number of segments in the cluster. The default is 2. We recommend one for each CPU core in the cluster as a good
starting point. Higher numbers tend to consume more resources, but may result in increased performance.
NOTES
Once crated with 4s-backend-setup KBs should be started with 4s-backend(1)
SEE ALSO
4s-query(1), 4s-size(1), 4s-httpd(1), 4s-backend(1), 4s-delete-model(1)
EXAMPLES
$ 4s-backend-setup --node 0 --cluster 1 --segments 4 demo
Creates the indexes for a single-machine KB with four segments, named "demo".
4store May 31, 2019 4store