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Advanced Unix programming (SAMS) by Gay W.

By Gay W.

It is a e-book approximately UNIX programming. It starts off with easy techniques and ends with insurance of complex subject matters. it's a self-teaching consultant, and but it services as a UNIX reference publication. The examples supplied are written within the C and C++ languages. The examples are brief courses, each one meant to illustrate use of a selected programming facility. The C++ courses are written as basic courses and will be good understood by means of those who don't application in C++. This e-book makes an attempt to be UNIX platform impartial. during the booklet, transformations in performance are famous in your comfort. it will prevent time for those who needs to write tasks that needs to be UNIX moveable. FreeBSD 3.4 liberate is used all through this publication for demonstration reasons. This promises that the instance courses will bring together and run with none extra attempt on that platform. This additionally offers a selected point of performance, seeing that a few features are missing or fluctuate on different structures. you could receive FreeBSD from the net or buy it on a CD-ROM at a nominal price. this permits you to paintings during the publication on a platform that's on a par with different specialist UNIX systems.

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Server-Independent Restores Server-independent restores is a feature of NetBackup that makes it possible to back up data from one server and restore the data to another server of the same type. TechEvolve uses server-independent restores in some situations. For example, if a server crashes and must be rebuilt, they may need to begin restoring the data before the server is completely rebuilt. With server-independent restores, one group can rebuild the server from a hardware and operating system standpoint while another group simultaneously restores the data to a different server.

In a large organization, the backup catalog can reach hundreds of Mbytes in size. Members of TechEvolve staff have been working with VERITAS, suggesting that the backup catalog be implemented as a database. They believe VERITAS has been receptive, and they may proceed in that direction. ) Architecting Tape Storage To implement their backup and restore architecture, TechEvolve is currently using a combination of directly attached tape libraries and tape drives, along with networked backup servers.

One of the interesting features of their system is that they rely not just on hot backups, as many companies do, but on database exports as well. Chapter 3 Case Studies 41 Two Backup Methods TechEvolve performs database backups for two different purposes: ■ Database recovery applies to situations where the database in general has been corrupted, perhaps due to a media failure such as a disk crash. ■ Data recovery applies to a situation where data needs to be recovered, perhaps because someone accidentally deleted a large number of records or dropped a table.

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