Backup & Replication

Backup & Replication

Network based Optical Storage methods of backup and replication meet today’s complex business requirements


With more and more pressure on IT administrators to protect data and make it readily accessible 24 hours a day, an increasing number of companies are looking for alternatives or supplemental solutions to traditional client-to-tape backup and restore. Faced with budget constraints and a steadily escalating need for quick, if not instant, data recovery, disk-to-optical disk backup is an option that some businesses have implemented, and many more are considering. But comparing disk backup to tape backup isn’t really an exercise in which method is “better”. More realistically, the comparison should be based on what is most appropriate based on networking demands, compliancy requirements and long term storage needs.

Historically, tape has been the preferred backup method because tape cartridges were inherently less expensive than optical disk media.

However, technology has evolved to meet demands. While tape media continues to exceed optical media in capacity optical media has greatly increased its capacity on an individual disk basis (30GB) when combined with library automation the latest optical disks produce multi-terabyte storage pools of network attached, secure, random access and removable data. Of equal significance is the fact that tape is comparatively slow (because it relies on sequential access), making it difficult to find files quickly. Optical drives, on the other hand, use direct random access and cache based read/write efficiencies that translate into enhanced productivity and potentially lower operating costs. In most all data restoration situations (except Disaster Recovery) data is typically retrieved as individual files which in most cases have been accidentally deleted by users. As such the utilization of random access optical storage is the most efficient (time & money) means of recovering this data. Restoring from tape is time consuming and without periodic testing, it may not be possible to verify the integrity of tape cartridges whereas data stored on optical does not have integrity related concerns.

Optical technology also provides the choice of storage media: Re-writable and WORM. Re-writable media can be used over and over; it’s the best choice when data permanency is not a requirement as previously written data can be written over thus recycling the space and lowering the cost of storage. WORM (Write Once Read Many) media provides secure data recording; once data is written to the media it cannot be erased. WORM media meets the compliance requirements for long term data archiving as well. It’s important to note that tape manufactures have been trying to fill the need for WORM capability for tape by introducing a WORM tape media however from a compliancy requirement standpoint the fact that WORM tape is “magnetic media”, by design a WORM tape cartridge can be easily erased via a standard bulk tape erasing tool or electro-magnetic field. WORM tape does not stand up to the compliancy requirements for Non-alterable, Non-erasable media.

Remote Replication

The StorageQuest Replication Manager is a revolutionary new product from StorageQuest, the leader in Optical Storage over IP networks. StorageQuest’s MSM Appliance with Replication Manager delivers an unprecedented level of information safety, simplicity and low cost of ownership.

How Replication Manager Works

By utilizing existing IP networks, StorageQuest appliances enable a complete remote copy of critical data to be maintained off-site at a fraction of the cost of other solutions. Patent and patent pending technology from StorageQuest is optimized to perform well on low-bandwidth network segments, which together with the operational simplicity of an appliance, enables smaller enterprises and branch office locations to implement business continuity plans.

StorageQuests Replication Manager Option provides a continuous backup / disaster recovery solution that inexpensively delivers real-time disaster preparedness. Continuously mirroring or replicating all data that is written to the Primary or Central optical storage library as it occurs, Replication Manager replicates the entire contents from one optical library to one or more additional optical libraries over any IP connection though an MSM series appliance asynchronously to any local or off site locations.

Ensuring business critical data is always available is an essential IT practice. Any data source can now have the best possible backup/disaster recovery capability. With StorageQuest’s Replication Manager, all your business data is replicated 24 hours a day for the most secure architecture possible. Just as importantly, you can have backup or hot sites anywhere you want -even AFTER a disaster takes place, and have the latest data instantly ready to use. Use Replication Manager for Disaster Recovery or as your standard Backup tool, it is both the simplest to use and most cost-effective. Any number of files, any size of files. Find out more about Replication Manager.

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