Storage Retrieval

Download Pro Data Backup and Recovery by Steven Nelson PDF

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By Steven Nelson


Good backup and restoration suggestions are key to the healthiness of any association. Medium- to very-large-scale structures directors need to safeguard quite a lot of severe information in addition to layout backup ideas which are scalable and optimized to satisfy altering stipulations. professional facts Backup and restoration will hide the various extra universal backup functions, corresponding to Symantec NetBackup/BackupExec, EMC NetWorker, and CommVault, however the major dialogue will specialize in the implementation of twenty first century architectures that permit the backup software program to be a “commodity" merchandise. The underlying structure offers the framework for assembly the necessities of knowledge security for the association.

This booklet covers new advancements in information safeguard in addition to the effect of single-instance garage upon backup infrastructures. It discusses the effect of backup and knowledge replication, the usually misapplied B2D and D2D ideas, and “tapeless" backup environments. non-stop information security and distant replication ideas also are addressed as they're built-in inside of backup innovations - an important subject this day.
* examine backup resolution layout despite particular backup software program * layout reasonable restoration suggestions * have in mind new facts safety criteria and the impression of knowledge replication even if you're utilizing NetBackup, CommVault, or another backup software program, professional facts Backup and restoration provide you with the knowledge you must continue your information secure and on hand. What you will examine * parts of a backup setting and purposes of these components * New applied sciences in the backup know-how zone and their influence on layout * Configurations utilizing either Symantec NetBackup and CommVault Simpana, with combos of backup serves, media servers, and consumers, and the affects of every blend * combos of either and software program configurations which are scalable from small to giant environments * Designs that deal with perennial areas of difficulty akin to distant places of work, very brief (less-than-15-minute) restoration aspect ambitions (RPOs), and tape administration * Reporting specifications that may help in retaining and starting to be an implementation as soon as accomplished Who this publication is for the overall viewers for this publication contains platforms engineers, structures directors, and expert backup directors. desk of Contents * advent to Backup and restoration * Backup software program * actual Backup Media * digital Backup Media * New Media applied sciences * software program Architectures: CommVault * software program Architectures: NetBackup * program Backup recommendations * placing all of it jointly: pattern Backup Environments * tracking and Reporting * precis

Über den Autor

Steven has been a Sys Admin/Engineer for over 15 years, protecting working platforms from SVR3.2, Microsoft home windows, RedHat Linux, HP-UX and, in fact, the various types of Solaris. He has a heritage with scripting in KSH, SH, and Perl, in addition to program improvement in C and VB. Â He was once the Lead Backup and restoration Engineer for Washington Mutual financial institution, and am at present the Western region's local Technical advisor for EMC's Backup, restoration and Archiving (BURA) perform, assisting five different neighborhood Technical experts, and masking over a hundred company point money owed. i've been released in SysAdmin journal (Aug 1999), discussing elements of Fibre Channel and its implementation in the atmosphere during which I labored on the time. I at present carry a Brocade CFP, EMC Backup and restoration professional certifications, in addition to numerous UNIX working approach certifications.

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Sun/StorageTek T10000 (T10k) The Sun/StorageTek T10000 (T10k) represents a leader in proprietary tape storage technology in terms of capacity. The T10k is a proprietary format only produced by StorageTek and is typically found in environments where previous STK technologies (9840/9940) have been deployed either for open systems or mainframe. The T10k is rated to hold 500 GB of native storage at 120 MB/sec. Tape Storage Characteristics Although all these statistics represent interesting performance numbers, all tape devices share similar performance characteristics that must be taken into account when designing backup environments.

The only way to avoid this effect is to ensure that the maximum amount of data is sent to a tape drive to keep it streaming at a rate above the minimum required to keep the tape transport moving. Fortunately, both CommVault and NetBackup have mechanisms to assist with ensuring that the tape transport is fed as much data as possible through the use of multiplexing (see Figure 3–6). Multiplexing is the ability to interleave backup streams from multiple clients onto a single device. Each client sends the backup stream to the backup server, in which it is broken up into blocks of data within a data buffer.

Because disk-based backups are typically written to LUNs that consist of more than one disk, there are benefits from the aggregation of disks that are realized. Disk performance is not only measured based on transfer rates, but on the number of IOPS or I/O Operations Per Second. This is a measure of how much data can be moved during a given period of time, not just the rate of transfer, and standardizes the performance metrics of dissimilar disks. Measurements of bandwidth are useful in determining the rate at which data can transfer, but IOPS ultimately determine the total quantity of data that can be transferred because IOPS measures in terms of blocks of data, which can vary from platform to platform, and even from version to version of particular operating systems, and is much more granular than overall bandwidth, which is in gross MB/sec.

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