What is Multi-Site Sync for LTO?
Multi-Site Sync for LTO is a cloud-based synchronization service that creates a single globally accessible file system for multiple LTO active archives. It allows an individual user or a local network to access one or more XenData LTO archives from anywhere.
Can it be used with existing XenData LTO archives?
Yes, XenData archive systems under a support contract may be upgraded to be part of a distributed network of archives. Files already archived to LTO may be easily included in the globally synchronized file system. And those files do not need to be restored from LTO to be included.
How does the synchronization appear to users?
As soon as a file is archived to LTO data tape at one location, it becomes available as a stub file within the global file system. When a user makes a change by writing, overwriting or deleting a file, that change is propagated to all locations. This provides a consistent up-to-date set of files across the entire distributed organization.
How does the synchronization work?
The XenData sync services used a cloud-based low-latency database to immediately synchronize stub files in all locations.
How do you restore files stored in another location?
An application simply reads the file and it will be restored via a direct transfer that uses peer to peer multi-threaded HTTPS. This delivers secure fast file transfers.
Can you write files to an LTO archive located elsewhere?
Yes, if the system is configured with permissions to write files to a remote LTO archive. Both writing files to and reading files from a remote archive use peer to peer multi-threaded HTTPS.
Are files ever stored in the cloud?
No. Although the Multi-Site Sync service uses a cloud database, the files themselves are never stored in cloud object storage, avoiding cloud storage and egress fees.
Is an Internet connection required at each archive location?
Yes. However, the Multi-Site Sync service requires minimal bandwidth because only file system metadata is being transferred. When files are written to or read from an LTO archive located elsewhere, the speed of transfer will typically be limited by the available Internet bandwidth.
What else is required at each archive location in addition to an Internet connection?
The XenData LTO archive software must be upgraded to add an S3 interface. And to use HTTPS, an SSL certificate must be installed on the XenData archive appliance. Note that SSL, more recently called TLS, is a protocol for encrypting Internet traffic and verifying server identity.
Can I access the LTO archives from a location without an on-premises archive?
Yes, you have two options to access the global archive file system: you may use a certified cloud storage browser such as Cloudberry Explorer PRO to access one of the synchronized LTO archives; or via XenData gateway software that runs on a Windows 10 machine or a Windows server.