Hi. I agree with Manu. Even I would add that it is the best tool to detect File corruption too.
We are doing it for years in Windows, Linux, HP-UX and AIX boxes. We allways increase the BLKMAX from default 8196 to 65536. (Otherwise uvbackup takes ages to finish...) We schedule one uvbackup of all of the accounts, dumping to a single disk file. Then we "tar" it to tape or removable media. The main issue is that you can zip the uvbackup "on the fly", but you can't uvrestore from stdin. So that, we have to unzip prior to restore. Regarding the uvrestore issue that you mention on RHEL, I cant tell you, for sure, that uvrestore (from a file) works fine with block size 65536. Regards -- Augusto Alonso Alonso Director de Sistemas QUITER SERVICIOS CENTRALES Zoco Gran Santander, 1ª planta - 39011 Santander - España Telf: +34 902233323 - Fax: +34 902234280 AVISO LEGAL: Este mensaje contiene información destinada exclusivamente al usuario de destino, pudiendo contener información confidencial o protegida legalmente. Si, por un error de envío o transmisión, ha recibido este mensaje y usted no es el destinatario del mismo, por favor, notifique de este hecho al remitente y no use, informe, distribuya, imprima, copie o difunda este mensaje bajo ningún medio . Cualquier opinión en él contenida, es exclusiva de su autor y no representa necesariamente la opinión de Quiter Servicios Centrales. LEGAL WARNING: This e-mail and any attachment, contain information intended solely for the addressee and may contain confidential information or legally protected data. If you are not the intended recipient, please notify the sender and do not use, disclose, distribute, copy, print or rely on this e-mail under any circumstances. The views and opinions expressed are the author´s own and do not necessarily reflect those of Quiter Servicios Centrales. 2011/5/3 Manu Fernandes <[email protected]> > Hi group, > > I'm using uvbackup/uvrestore as the system to backup uv accounts. > Imho the only tool to perform : > - a uvdb backup with binary level <> db integrity. > - a cross plateform compatible backup > We perform account level uvbackup sent to a local file (uvbackup > > accountfile.uvb). I can't talk about block sizes impact. > > About perf, I use the option -limit set to 1 ; then uvbackup don't start > two process (reader/writer) this is really more quick. > > I know a problem with Type1 files when uvbackup from unix and uvrestore on > windows. > uvrestore 'restore' dir and subs-dir on windows like prepared on unix but > uvwindows don't "respect" Type1 subs dir ... > You must resize Type1 to Type19 on uvunix before uvbackup and uvrestore on > uvwin. > > My 2 pence > manu > > > -----Message d'origine----- > > De : [email protected] [mailto:u2-users- > > [email protected]] De la part de Gregor Scott > > Envoyé : mardi 3 mai 2011 04:13 > > À : U2 Users List > > Objet : [U2] Limitations of uvrestore > > > > I have just finished some testing of uvbackup and uvrestore on AIX and > Linux > > to see if there are areas to improve performance. > > The results were interesting, and somewhat alarming - see > > http://gdoesu2.wordpress.com/2011/05/02/facts-about-uvbackup-and- > > uvrestore/ for details. > > > > What I am interested in is: > > > > a) Do UV platforms other than AIX and Linux have similar issues with > > uvrestore? > > > > b) Does anyone use block sizes beyond 1mb for uvbackup and > uvrestore? > > If so, what size and what impact does it have on backup performance? > > > > Thanks > > > > Gregor > > > > ________________________________ > > This email and any attachments to it are confidential. > > You must not use, disclose or act on the email if you are not the > intended > > recipient. Liability limited by a scheme approved under Professional > > Standards Legislation. > > _______________________________________________ > > U2-Users mailing list > > [email protected] > > http://listserver.u2ug.org/mailman/listinfo/u2-users > > _______________________________________________ > U2-Users mailing list > [email protected] > http://listserver.u2ug.org/mailman/listinfo/u2-users > _______________________________________________ U2-Users mailing list [email protected] http://listserver.u2ug.org/mailman/listinfo/u2-users
