Details about Optical Disk Migration
Optical disk libraries, also referred to as optical jukeboxes, are robotic-based storage devices that utilize Write Once Read Many (WORM) optical disks as a storage medium, and have a robotic “media picker” that moves media from a storage slot into an available optical drive for reading and writing archived data.
Due to the high cost of maintaining an optical storage archive – in addition to slow data retrieval times associated with media swap cycles within an pptical library – the current trend has been to migrate data to faster performing and easier-to-manage platforms such as Isilon or VNX – thereby creating a need for data migration for optical disk libraries.
To begin planning a data migration effort, organizations need to first understand that many legacy optical file systems did not write data sequentially to the disks in a library device, and there was little to no consistency between the application layer, the optical file system layer and the host server file system layer.
Due to the lack of consistency across file systems, initiating a mass file copy at the application level or operating system level will, in most cases, cause a condition within the library known as thrashing, which is the constant mechanical movements of the robotics and continual media load/unload cycles, resulting in extremely lengthy migration efforts for even a small volume of data.
To eliminate optical library thrashing issues and minimize project duration, our purpose-built One Pass migration software “images” the data from each side of each media in a single pass, and streams it to a temporary disk array for further processing, making it the most efficient optical migration engine available.
One Pass also captures and logs every step of the migration process, beginning with selecting the source data and ending with post-migration verification of content on the new system, thereby documenting the chain-of-custody for each file in a report that we produce at the conclusion of a migration project.
For data that has met its retention period, One Pass provides a powerful set of inclusion and exclusion filters that migrates only the subset of data that’s selected, further ensuring that regulatory compliance is maintained during the migration.
Optical Media Formats We Migrate
• Magneto-Optical (1.3GB, 2.6GB, 5.2GB, 9.1GB)
• UDO Optical (30GB, 60GB)
• 12″ Optical (12GB LM-6000, 30GB LM-8000
Optical File Systems We Migrate
• EMC Disk Xtender for Windows
• Plasmon Archive Appliance
• IBM FileNet OSAR
• IBM OS/400
• IBM Tivoli Storage Manager (TSM)
• POINT Jukebox Manager for Windows
• QStar for Windows, Linux, and UNIX
• SAM-FS for Sun Solaris
• Others upon request
Where to go from here
To speak with an Optical Media Migration specialist, call (631) 789-9595 or fill out our Information Request Form and a representative will call you back shortly.