> Hello Phil, Hello, Kern, Phill,
> There should be no difference in how Bacula handles tapes between 7.4.7 > and 9.0.x. If there is I would suggest that you carefully document it > in a way that I can "see" the problem and easily reproduce it so that I > can fix it. mtx-changer will *not* work unless you have an > autochanger. There is no fake autochanger for tapes. There are two > types of "fake" autochangers for Disks. The first one is something like > mhvtl that is a program that simulates in detail and autochanger. The > second is the Bacula virtual disk autochanger. > > If you have a real stand-alone tape drive, I personally know of no way > to make it work with mtx, and if Bacula does not work with it, I will be > happy to work on fixing it, but only if it is clearly documented in a > detailed but very concise way. I think Phil refers to this is script <http://bacula.us/manual-tape-drive-automation/>. I documented it many years ago. This is the original thread <http://bacula.10910.n7.nabble.com/automount-with-single-non-autoloader-drive-td28536.html>. I'm not sure who was the original poster. I will try to find it now. > The Bacula virtual disk autochanger and certain other cases are very > nicely documented in several of the white papers that are on www.bacula.org. Regards, > Best regards, > > Kern > > > On 08/01/2017 08:44 PM, Phil Stracchino wrote: >> I've just upgraded from Bacula 7.4.7, in which my standalone LTO4 tape >> drive worked perfectly, to Bacula 9.0.2, in which it doesn't. In 9.0.2, >> I had to use the workaround of setting up a fake autochanger with one drive. >> >> The problem is that this trick is not documented, and I had to largely >> figure it out by trial and error and reference to outdated documentation >> that doesn't address the fake-autochanger case anyway. The mtx-changer >> command is just copied directly from a standard changer invocation, and >> Changer Device is a total guess - it's the generic SCSI device >> corresponding to the tape drive. I don't know if it's right, wrong, or >> unneeded, or what to use in its place. I also don't know whether any of >> the directives in the Device description are obsolete or not needed any >> more. >> >> >> >> Here's the configuration in my Director: >> >> Storage { >> Name = babylon5-sd >> Address = babylon5.babcom.com >> SDPort = 9103 >> Password = "********************" >> Device = babylon5-changer >> Media Type = LTO-4 >> Maximum Concurrent Jobs = 20 >> Autochanger = yes >> } >> >> >> And on the relevant Storage: >> >> Autochanger { >> Name = babylon5-changer >> Device = LTO-4 >> Changer Command = "/usr/libexec/bacula/mtx-changer %c %o %S %a %d" >> Changer Device = /dev/sg5 # this is largely a guess >> } >> >> Device { >> Name = LTO-4 >> Media Type = LTO-4 >> Archive Device = /dev/nst0 >> Drive Index = 0 # pretend >> Autochanger = yes # pretend >> AutomaticMount = yes # when device opened, read it >> AlwaysOpen = yes >> OfflineOnUnmount = yes >> RemovableMedia = yes >> RandomAccess = no >> Maximum File Size = 5GB >> Maximum Block Size = 2048000 >> Spool Directory = /var/tmp/bacula >> Maximum Spool Size = 10GB >> Maximum Job Spool Size = 5GB >> } >> >> >> Now, this *WORKS.* But it throws non-fatal mtx-changer errors like this: >> >> >> 01-Aug 14:11 minbar-dir JobId 14328: BeforeJob: Client babylon5 has address >> +10.24.32.10 >> 01-Aug 14:11 minbar-dir JobId 14328: Start Backup JobId 14328, >> +Job=Babylon5_Backup.2017-08-01_14.11.23_04 >> 01-Aug 14:11 minbar-dir JobId 14328: Using Device "LTO-4" to write. >> 01-Aug 14:11 babylon5-sd JobId 14328: No slot defined in catalog >> (slot=0) for Volume >> +"LTO4-FULL-0024" on "LTO-4" (/dev/nst0). >> 01-Aug 14:11 babylon5-sd JobId 14328: Cartridge change or "update slots" >> may be >> +required. >> 01-Aug 14:11 babylon5-sd JobId 14328: 3991 Bad autochanger "loaded? drive 0" >> +command: ERR=Child exited with code 1. >> Results=mtx: Request Sense: Long Report=yes >> mtx: Request Sense: Valid Residual=no >> mtx: Request Sense: Error Code=70 (Current) >> mtx: Request Sense: Sense Key=Illegal Request >> mtx: Request Sense: FileMark=no >> mtx: Request Sense: EOM=no >> mtx: Request Sense: ILI=no >> mtx: Request Sense: Additional Sense Code = 20 >> mtx: Request Sense: Additional Sense Qualifier = 00 >> mtx: Request Sense: BPV=no >> mtx: Request Sense: Error in CDB=no >> mtx: Request Sense: SKSV=no >> READ ELEMENT STATUS Command Failed >> >> 01-Aug 14:11 babylon5-sd JobId 14328: Recycled volume "LTO4-FULL-0007" >> on Tape >> +device "LTO-4" (/dev/nst0), all previous data lost. >> >> >> I get similar errors from mounting and unmounting volumes. Clearly >> mtx-changer is really not on board with this whole "fake autochanger' >> thing. Does anyone know what changes I should make to eliminate these >> errors? Is there a specific way to configure mtx-changer for the "fake >> autochanger" case? Should I be even using a Changer Command at all if >> there is no Changer? >> >> >> > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Bacula-users mailing list > Bacula-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bacula-users -- =========================================================================== Heitor Medrado de Faria | CEO Bacula do Brasil | Visto EB-1 | LPIC-III | EMC 05-001 | ITIL-F • Não seja tarifado pelo tamanho dos seus backups, conheça o Bacula Enterprise: http://www.bacula.com.br/enterprise/ • Ministro treinamento e implementação in-company do Bacula Community: http://www.bacula.com.br/in-company/ +55 61 98268-4220 | www.bacula.com.br ============================================================================ Indicamos também as capacitações complementares: • Shell básico e Programação em Shell com Julio Neves. • Zabbix com Adail Host. ============================================================================ ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
