Does bacula uses software compression by default? Arunav.
----- Original Message ----- From: "Georger Araujo" <[EMAIL PROTECTED]> To: <bacula-users@lists.sourceforge.net> Sent: Sunday, September 17, 2006 2:09 PM Subject: Re: [Bacula-users] SDLT600 tapes on bacula 1.38.11 According to the specs presented in http://www.tape-library.com/quantum/sdlt-600.htm, your tapes can store 300 GB native and *up to* 600 GB compressed. Keep in mind that 2:1 compression is just wishful thinking; an optimistic estimate. It could be less in practice. I have an LTO-2 drive, and my tapes have a native capacity of 200 GB. All datasheets say it *should* store up to 400 GB, but I found that in my real-world scenario it maxes out at ~310 GB. Your drive features hardware compression, so you should turn software compression *off* in bacula. It slows down your backups, eats lots of CPU cycles *and* could also use more storage than uncompressed backups, because the drive will attempt to compress the already compressed data on its own and things could go awry. My $0.02. Regards, Georger --- Arunav Mandal <[EMAIL PROTECTED]> escreveu: > I am using SDLT600 tapes and that is suppose to fit > 600GB compressed. It > seems it is unevenly filling up. Some tapes are as > low as 136Gb and some are > 456GB to 594GB. I am using disk spool first then to > tape. So why is this > difference? > > Arunav. _______________________________________________________ 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 ------------------------------------------------------------------------- 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
