I read the documentation for both drives in http://h18006.www1.hp.com/products/quickspecs/12128_div/12128_div.html and http://www.quantum.com/Products/TapeDrives/LTOUltrium/LTO-2HH/Index.aspx, and I believe you can go for the Quantum. Same 64 MB buffer memory size, same Ultra160 interface (the HP drive has a SAS model, too), very similar transfer rate, at a lower price than the HP drive. You should check if your prices are for external units and the terms of the warranty. Regards,
Georger ----- Mensagem original ---- De: Don MacArthur <[EMAIL PROTECTED]> Para: bacula-users@lists.sourceforge.net Enviadas: Quinta-feira, 12 de Outubro de 2006 13:38:44 Assunto: Re: [Bacula-users] DLT or LTO-2 drive On Thu, 2006-10-12 at 18:00 +0200, Gour wrote: > On Thu, 2006-10-12 at 09:28 -0600, Don MacArthur wrote: > > > lto is faster to backup and restore. The drives change speed to match > > the data transfer rate, which will extend the life of both the drives > > and the media. > > Oh, I didn't know that. > > > The lto media has higher capacity, and cost per data unit is lower. > > I've been running this config for about 1.5 years with no drive or > > media problems. > > Is there any advantage of dlt over lto-2 ? Yes: - capacity - speed - technological lifespan (newer, so will probably be around after dlt is gone) - durability (drive match data rate so drives and media have a longer lifespan We paid about US $2300 for an external hp960 a few months ago. You may need fewer lto tapes (because they hold more data), so maybe this will offset the higher cost of the drive. I load 700GB+ on my lto4 tapes, so 3 may be all you need to do a full backup. I use bacula to backup about 14 servers (win/lin/osx) nightly. I run 20 jobs, concurrently backing up each server to tape and raid. As one job finishes, another waiting job starts. Takes about 2 to 3 hours. I backed up a 3TB raid in a few hours this hardware with bacula. Maybe the time saved doing backups, and the faster restore performance (faster uptime) can be used to help justify the higher cost... FWIW. > > Sincerely, > Gour > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ Bacula-users mailing list > Bacula-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bacula-users ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users _______________________________________________________ O Yahoo! está de cara nova. Venha conferir! http://br.yahoo.com ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
