Themes & Channels
Cost Advantages of Using Tape in Tiered Storage Approaches
This is a Press Release edited by StorageNewsletter.com on Mon, June 2nd, 2008
A white paper from The Clipper Group sponsored by the LTO consortium
The sponsored white paper, written by David Reine and Mike Kahn of The Clipper Group, looked at total costs of ownership over a five year period for the long-term storage of data in tiered disk-to-disk-to-tape versus disk-to-disk-to-disk solutions. After factoring in acquisition costs of equipment and media, as well as electricity and data center floor space, Clipper found that the total cost of SATA disk archiving solutions were up to 23 times more expensive than tape solutions for archiving. When calculating energy costs for the competing approaches, the costs for disk were up to 290 times that of tape.
“Our goal was to answer the overriding question of ‘how much does it really cost?’ to provide readers with a balanced ‘apples to apples’ comparison of these two archiving approaches,” said Mike Kahn, Managing Director, The Clipper Group. “In the end we have determined that a blended environment of disk and tape is the right configuration, incorporating both high performance disk to satisfy contracted SLAs along with the lower TCO figures of tape for long-term storage.“
“While the CIO might be anxious to push forward with newer technology, our paper shows that disk-only archiving solutions are not a replacement for tape if cost is at all an issue -- disk should be used to complement tape,” said Dave Reine, Director, Enterprise Systems, The Clipper Group. “Our findings show that there are substantial potential savings when using tape in tiered approaches, and even when you factor in de-duplication, tape-based strategies still provide an estimated 5:1 cost advantage over de-duped disk in archiving.”
Findings of the report include:
- The total cost of ownership of SATA disk archiving solutions is about 23 times that of tape-based archive solutions
- Tape is the more energy efficient choice for the data center, providing up to a 290:1 advantage on energy costs
- Tape is the more economical solution for long-term storage requirements for mid-sized data centers
- Tiered D2D2T solutions can be justified on acquisition costs alone
- Employing de-duplication can bring down the overall TCO of SATA-based archiving solutions, but tape-based archiving still has an estimated 5:1 advantage
“Tape is an integral component of a user’s information infrastructure strategy,” said Cindy Grossman, Vice President, Tape and Archive Systems, IBM. “A tiered storage blend of disk and tape can help the IT manager address a myriad of data center goals that include SLA performance targets, disaster recovery, archive, data security and of course, TCO and energy consumption.“
To download the Clipper Group paper, “Disk and Tape Square Off Again – Tape Remains King of the Hill with LTO-4”
(You need to register)
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