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Chapter 6: Testing and Validation Line 1: The filesperset parameter is set to one, there is a saving of over 91 percent of storage requirements. Line 2: When the filesperset parameter is set to the default you save 87 percent. This clearly demonstrates the effect of the filesperset parameter on deduplication rates. Setting the parameter to one achieves a four percent improvement in storage capacity savings. Restore Data Domain’s Stream-Informed Segment Layout (SISL) technology ensures balanced backup and restore speeds. The backup schedule utilizes only full backups every day. This is possible because only unique data is stored on the DD880 appliance. This schedule has the advantage that when a recovery is required for any point in time only a single restore is required as incremental or differential restores are not required. This greatly improves the RTO. When you implement an incremental backup schedule, as shown, you will need a multi-stage restore operation (to restore Thursday's backup). If in the worst case scenario a restore of Thursday’s backup is required, then a multi-stage restore operation is necessary. EMC Backup and Recovery for Oracle 11g OLTP Enabled by EMC CLARiiON, EMC Data Domain, EMC NetWorker, and Oracle Recovery Manager using NFS Proven Solution Guide 74
Chapter 6: Testing and Validation You must first restore the full weekend backup; after this restore is successful, you must restore each weekday’s incremental backup one after the other, and only Thursday data is restored. When using a Data Domain deduplication appliance, it is possible to implement a full only backup schedule. Therefore only a single restore is required, regardless of where in the schedule the data restore is required. EMC Backup and Recovery for Oracle 11g OLTP Enabled by EMC CLARiiON, EMC Data Domain, EMC NetWorker, and Oracle Recovery Manager using NFS Proven Solution Guide 75
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EMC Backup and Recovery for Oracle
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Table of Contents Table of Contents
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Chapter 1: About this Document Audi
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Chapter 1: About this Document Vali
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Chapter 2: Use Case Components EMC
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Chapter 3: Storage Design Chapter 3
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EMC Backup and Recovery for Oracle 11g OLTP Enabled by EMC ...

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