How Archive Storage Works

The archive process copies files to the SAN or NAS servers or Amazon S3 buckets and updates the database.

Archival to NAS server

If the Direct Attached Storage (DAS) capacity reaches the watermark set in the Archive Threshold field on the Archive Configuration page, or if the files reach their retention time limit, the files are deleted.

By default, the NetApp Snapshot feature is enabled on NetApp systems to copy data from an NFS storage location to the snapshot directory so that you can create restore points for files. You must disable NetApp Snapshot on your NetApp device because it affects some LogLogic LMI components via the mounted snapshot and is not supported in the LogLogic LMI appliance. For instructions about how to disable NetApp Snapshot, see article #000036898 on the TIBCO Support website.
Note:
  • Set the archive threshold to a non-zero positive number. For best results, use a number greater than 10.
  • In case of NAS server, LogLogic LMI owns the contents of the archival top directory, if one archive volume is:1.2.3.4:/ExportedShare (on the command line it appears as /loglogic/data/archive/mount_#/vol1), then every file under .../archive/mount_#/vol1 comes from the archival process.
  • If the connection with the NFS servers is lost or the NFS server is shut down after configuring the NFS archive server, the LogLogic LMI appliance cannot be shut down or restarted for a timeout period of about 30 minutes. After the appliance restarts, restart the NFS server and run the mount command. For a workaround or a resolution, see this article on the Red Hat website.

In HA mode, the node ID might have to be set up to avoid mount point conflicts due to multipathd being enabled. See Enabling a Node ID in the Archive Path.

Archival to Amazon S3 buckets

You can archive data to Amazon S3 buckets in AWS cloud by setting up a Storage Gateway of the type "File". Archiving to an Amazon S3 bucket is identical to archiving to an NFS remote storage. To configure the file gateway:

  1. On AWS cloud, follow the procedure Creating an NFS File Share in the AWS Storage Gateway User Guide. In the Create file share section, ensure that you set Squash level to No Root Squash.
  2. On the LogLogic LMI appliance, configure the archival from the Administration > Archive Configuration page. Follow the procedure in Configuring NAS Server Storage by selecting the Enable NAS option.