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IBM TS7700 Overview
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IBM TS7700 Overview

IBM TS7700 Overview

High-end virtual tape
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High-End Virtual Tape:
IBM Leaps Ahead with a New
Grid Architecture
Summary
IBM has invented virtual tape again and far for the better.
Introduction
IBM invented virtual tape in 1996
beating StorageTek, to the market by
two years. (Note that Sun acquired
StorageTek and all subsequent
references will be to Sun in this
document).
IBM and Sun dominate the high-end
virtual tape market, which has
previously been mostly a game of
performance leapfrog.
However, IBM recently introduced a
dramatically improved architecture and
products, while Sun continues to plod along with an old architecture.
©2007 The Tod Point Group
Points to Remember
• IBM invented virtual tape.
• IBM's new virtual tape grid architecture lets virtual
tape data reside anywhere on a virtual tape grid.
• New gigabit IP links are easier to use and cost
.
less
• IBM's new policy management features make it
easy to meet recovery objectives.
• IBM's new hardware outperforms Sun's in most
cases.
• IBM has fulfilled on its goal to facilitate migration
from its older architecture products.
• Sun has lagged behind IBM in replication and
FICON support
• IBM is much more open than Sun.
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Summary of Contents for IBM TS7700

  • Page 1 High-End Virtual Tape: IBM Leaps Ahead with a New Grid Architecture Summary IBM has invented virtual tape again and far for the better. Introduction Points to Remember • IBM invented virtual tape. IBM invented virtual tape in 1996 • IBM’s new virtual tape grid architecture lets virtual beating StorageTek, to the market by tape data reside anywhere on a virtual tape grid.
  • Page 2 IBM’s vast array of technologies for performance, encryption and futures. Playing catch-up, IBM has finally added the capability to export a copy of the logical volumes stored to the node for disaster recovery purposes. Also, IBM’s tape grid is not compatible with its previous architecture, but a wealth of migration tools are available.

  • Page 3: System Comparison

    As discussed earlier, IBM’s Tape Grid architecture is by far the biggest differentiator and we will see more of its advantages as IBM rolls out future feature and function. The switch to IP links for inter-nodal traffic has been heartily embraced by users who find it much easier and less expensive than using FICON or ESCON channels, particularly for wide-area applications.

  • Page 4: Data De-Duplication

    Thus, as things stand today, Sun cannot integrate Diligent’s software into its VSM. IBM, on the other hand, has had various forms of data reduction running for years in its Tivoli Storage Manager (TSM) and although TSM formed the software basis for the previous IBM virtual tape servers, the TS7700 has purpose built firmware.

  • Page 5: Bottom Line

    TS7700 in the remote location, but with the nature if IBM’s tape grid, the derived metadata can be shared by all the nodes on the grid. What’s more, the shared knowledge of a volumes location could be used to direct the distribution of the indexing workload(s) thereby minimizing tape movement.
  • Page 6 1 - This score is a simple binary -- which vendor has better specifications 2 - Depends on lots of things including compression ratio, read/write ratio, block size, etc. 3 - Depends on features and updates installed Sources: IBM, Sun, and Google ©2008 The Tod Point Group www.TheTodPointGroup.com...