Optimized Synthetics 1 OpenStorage Optimized Synthetics

Agenda Optimized Synthetics 2 What is Synthetic Backup? 1 What is an Optimized Synthetic Backup? 2 How to use Optimized Synthetic Backup? 3

What is a Synthetic Backup? Method of producing a new backup image utilizing existing images. No client involvement. Utilizes True Image Restore catalog metadata to calculate the content of a new full or cumulative incremental backup based on change contained in differential incremental backups. Reads from full and/or differential incremental backups, filtering out replaced or deleted files and writes to a new image. – Full read and write of image data. Typical use, avoid full backup: – First full, regular differential incrementals, followed by synthetic full – Repeat incrementals and synthetic full Optimized Synthetics 3

What is an Optimized Synthetic Backup? Method of producing synthetic backup images utilizing unique OST capabilities Produces synthetic backup images with content and layout identical to traditional synthetic backup images Does not require direct read or write of image data. Relies on implicit object sharing for storage savings and operation efficiency. OST device is responsible for storage organization: – Decouples object sharing complexity from Netbackup. – Leverages special capabilities of OST devices. Optimized Synthetics 4

How to Use Optimized Synthetic Backup Configure OST storage device that supports optimized synthetic and its plugin – Netbackup storage server will inherit the “OptimizedImage” attribute during storage server configuration (nbdevconfig -creatests). – Disk pools created for that storage server will inherit the “OptimizedImage” attribute from the storage server (nbdevconfig -createdp). Disk pools with the “OptimizedImage” attribute will be capable of producing synthetic backups utilizing the Optimized Synthetic method. bpsynth, the Synthetic Backup controller, chooses the construction method based on the “OptimizedImage” attribute on the disk pool – All source images and the target STU must be the same disk pool. Cannot cross disk pools or storage servers – Target STU for full, incremental, and synthetic backup should be same STU Optimized Synthetics 5

How to Use Optimized Synthetic Backup For already configured storage servers upgraded to support Optimized Synthetic, the “OptimizedImage” attribute must be set on the Netbackup storage server and disk pool: – nbdevconfig -changests -storage_server -stype -setattribute OptimizedImage – nbdevconfig -changedp -stype -dp - setattribute OptimizedImage To disable Optimized Synthetic globally, create touch file on master server: – netbackup/db/config/OPTIMIZED_SYNTHETIC_DISABLE If an Optimized Synthetic is being performed, activity monitor: – “Performing Optimized Synthetic Operation” Optimized Synthetics 6

Technical Feature Implementation Traditional synthetic has a “triangle of connections”: – reader to bsynth, writer to bpsynth, writer to reader – can be different servers, socket connections firewall sensitive Optimized Synthetic connects to one media server – bptm on that media server performs OST operations – media and master server must be Traditional synthetic and Optimized Synthetic both controlled by improved bpsynth Logs: bpsynth (master) and bptm (media server) Primary copy of source images are considered for read – no media type analysis is performed on non-primary backups Optimized Synthetics 7

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