By W. Curtis Preston
Packed with functional, freely on hand backup and restoration recommendations for Unix, Linux, home windows, and Mac OS X platforms -- in addition to a number of databases -- this new consultant is an entire overhaul of Unix Backup & Recovery by way of an identical writer, now revised and increased with over seventy five% new material.
Backup & Recovery begins with a whole review of backup philosophy and layout, together with the elemental backup utilities of tar, unload, cpio, ntbackup, ditto, and rsync. It then explains numerous open resource backup items that automate backups utilizing these utilities, together with AMANDA, Bacula, BackupPC, rdiff-backup, and rsnapshot. Backup & Recovery then explains the best way to practice naked steel restoration of AIX, HP-UX, Linux, Mac OS, Solaris, VMWare, & home windows platforms utilizing freely-available utilities. The ebook additionally presents overviews of the present country of the industrial backup software program and marketplace, together with overviews of CDP, info De-duplication, D2D2T, and VTL expertise. ultimately, it covers the way to automate the backups of DB2, trade, MySQL, Oracle, PostgreSQL, SQL-Server, and Sybase databases - with out deciding to buy a advertisement backup product to do so.
For environments of all sizes and budgets, this targeted booklet indicates you the way to make sure information safety with out resorting to dear advertisement strategies. you'll soon examine to:
- Automate the backup of renowned databases with out a advertisement utility
- Perform naked steel restoration of any well known open structures platform, together with your computer or laptop
- Utilize important yet frequently unknown open resource backup products
- Understand the kingdom of business backup software program, together with reasons of CDP and knowledge de-duplication software
- Access the present country of backup undefined, together with digital Tape Libraries (VTLs)
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Additional resources for Backup & Recovery: Inexpensive Backup Solutions for Open Systems
Tape 1 2 GB unload three GB unload (2/3 of it) Tape 2 rest of three GB sell off determine 3-3. instance of a multiple-volume sell off backup Do i need to use the s and d ideas? a number of more moderen models of unload have performed away with those concepts and supplied a brand new dimension in kilobytes alternative you should use to specify the scale of the amount in kilobytes. in spite of this, i myself use the s and d recommendations with each unload command I run in order that I don’t need to take note how diversified types paintings. you'll find it is a universal topic all through this booklet: the extra belongings you can do an analogous far and wide, the less stuff you need to fear approximately. The extra per-host and per-OS customization you do, the extra difficulty you will get into. (For instance, the scale in kilobytes alternative makes use of a special letter on each one model of Unix that helps it! ) consequently, utilizing the archaic measurement and density thoughts really makes writing shell scripts a lot more uncomplicated, since you can use a similar thoughts on so much types of Unix. What occurs, then, in case you don’t use the s, d, or dimension in kilobytes innovations? On a few Unix flavors, unload makes use of the default values for measurement and density (except for AIX, which has it seems that performed away with those suggestions altogether). regrettably, the default values tend to be got to work with a nine-track tape. (Solaris has replaced its default values to be a bit of extra good. ) If this occurs, sell off will imagine it wishes a number of volumes. The output of unload seems to be anything just like the following: unload: envisioned 5860 blocks (3006KB) on 39. 00 tapes. seventy six | bankruptcy three: uncomplicated Backup and restoration Utilities Notice that it thinks it’s going to wish 39 tapes. this can be what can ensue if you happen to don't use the dimensions and density recommendations to specify the means of the quantity. As pointed out ahead of, you could simply disable this option through surroundings those values to a few ridiculously excessive determine in order that unload by no means thinks that it has run out of tape. (I for my part use numbers like a million for either. ) Specifying a backup gadget dossier (f) The f choice specifies the identify of the backup machine to that you are sending the information. (This “device,” in fact, will be both an exact tape gadget or a dossier sitting on a disk, optical platter, or CD. ) while you're looking forward to to exploit the compression function of your tape force, just remember to decide on a tool that helps compression. so that you can ship the knowledge to a force on one other procedure, use the layout remote_system_name:device. so much models of Unix aid utilizing distant units in unload, so long as you’re all right with utilizing rsh as an authentication mechanism. using rsh and /. rhosts records is an important safety gap, and lots of websites now not enable their use! Don’t move developing /. rhosts records in all places and blame it on me. ensure you examine no matter if you're allowed to exploit rsh at your website ahead of you begin utilizing it. while you're no longer allowed to exploit rsh, you have to examine imposing ssh as a drop-in substitute for rsh. See the part “Using ssh or rsh as a Conduit among structures” close to the top of this bankruptcy for additional information.