IBM TS7650G PROTECTIER DEDUPLICATION GATEWAY, Руководство пользователя

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Chapter 1. Introduction
The TS7600 ProtecTIER Deduplication Solutions, V3.4.1 are advanced disk-based
storage systems.
ProtecTIER is a disk-based data storage system. It uses data deduplication
technology to store data to disk arrays. The ProtecTIER VTL service emulates
traditional automated tape libraries.
Before you use ProtecTIER and this document, ensure that you complete the
planning, preparation, and installation tasks. These tasks are described in the IBM
TS7650G ProtecTIER Deduplication Gateway Installation Roadmap Guide, GA32-0921
publication.
HyperFactor
This topic describes IBM data factoring technology, known as HyperFactor
®
.
ProtecTIER is the first virtual tape product to contain patented data deduplication
technology that IBM calls HyperFactor. This technology detects recurring data in
multiple backups. The common data is merged into a single instance store, saving
disk space needed to store multiple backups without sacrificing performance or the
availability of backups.
HyperFactor is a breakthrough on several fronts:
v It is scalable up to 1024 TB.
v The algorithm used to find the common data between backups does not affect
the backup performance of the virtual tape engine.
v Data integrity is not compromised, not even statistically.
v Merged data is stored in a format that preserves restore performance.
HyperFactor saves space by taking advantage of the fact that only a small
percentage of data actually changes from backup to backup. Incremental backups
include all files with modification dates that have changed since the last full or
incremental backup. Full backups store all the data, changed or not.
The amount of space saved depends on many factors, mostly of the backup
policies and retention periods and the variance of the data between them. The
more full backups retained on ProtecTIER, and the more intervening incremental
backups, the more overall space saved.
ProtecTIER Virtual Tape
The ProtecTIER Virtual Tape service acts like a traditional tape drive.
The ProtecTIER Virtual Tape (VT) service emulates traditional tape libraries.
Because ProtecTIER VT emulates tape libraries, you can switch to disk backup
without replacing your entire backup environment. Your existing backup
application can access virtual robots to move virtual cartridges between virtual
slots and drives. The backup application perceives that the data is being stored on
cartridges while ProtecTIER stores data on a deduplicated disk repository on the
storage fabric.
© Copyright IBM Corp. 2012, 2016
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