Tiered Storage Basics
Many studies of data creation and data access patterns have proven time and time again that within 60 – 90 days of creation, 80% of that data is either seldom accessed, or is never accessed again.
However, many organizations continue to store infrequently accessed data on expensive, primary storage devices such as SAN and high-end NAS systems, resulting in unmanageable and unreliable backups, and leaving critical data vulnerable to hard disk and other system-related failures.
As SAN and NAS systems reach their maximum storage capacity, the normal response has been to “just add another tray of drives” into their disk array cabinets, ignoring the back-end ramifications such as increasing the amount of data to backup in an already tight backup window, and reaching file and/or object limitations inherent to their storage device.
Tiered Storage Software
Tiered Storage Software allows a system administrator to define “policies” for data migration and retention, thereby controlling the movement of data from expensive primary storage devices to less-expensive storage where it is still accessible to the file system and to applications requiring access to the data.
Storage tiering applications provide the ability to “stub and migrate” files to less-expensive storage devices such as Optical libraries, Tape libraries, or Cloud storage, based on a number of criteria such as file age, file size, and file type, to name a few.
With the growing popularity and steadily decreasing costs of Cloud Storage Services, there are now an abundance of options for “pay-as-you-grow” storage providers, thereby eliminating the requirement to purchase and maintain Optical libraries or Tape libraries, and eliminating the physical handling requirements and security concerns for managing removable media.
Examples of Storage Tiering
• Move all scanned document image files with .TIF and .PDF extensions that have not been
accessed in over 90 days to an Optical library
• Move any video surveillance recordings with .AVI extensions that are greater than 10MB in size
to an LTO Tape library, regardless of its creation date or last access date
• Move voice mail recordings to a Cloud Storage provider, beginning when free space on the
primary storage device reaches 10%, and stopping when free space reaches 25%, ensuring
that “out of disk space” situations are prevented
Where to go from here
To speak with a Tiered Storage specialist, call (631) 789-9595 or fill out our Information Request Form and a representative will call you back shortly.