On Sunday 16 November 2003 01:18, Danny Ybarra wrote: >I'm new to amanda but I read that amanda now spans >multiple tapes. How do you set that up on a Dell 132T >LTO Autoloader? I also want to use that feature on a >regular single HP DAT drive. > Amanda can use more than one tape, however it cannot span a single disklist entry to two or more tapes. Each disklist entry must be smaller than 1 tape.
I'm watching amanda use 2 tapes here, and just saw it switch to the next tape. Unforch, the file it failed on was over half a tape, so it wasted about 1.5 gigs in changing the tapes. Looks like I'll need to re-arrange that entry into 2 or 3 to make it into smaller pieces. I'm seeing, in the status reports, that amanda seems to be ignoreing my dumporder "STSTSTST", as its often been seen to do a 70 meg DLE, a 600Mb DLE, then a 2.1Gb DLE and a 1.1Gb DLE, in that order while filling up a teeny 4Gb tape which wound up with: dumped : 12 7721415k 7503717k (102.90%) ( 22.21%) wait for writing: 8 3018755k 2801057k (107.77%) ( 8.68%) wait to flush : 0 0k 0k (100.00%) ( 0.00%) writing to tape : 1 2296810k 2296810k (100.00%) ( 6.61%) failed to tape : 0 0k 0k ( 0.00%) ( 0.00%) taped : 3 2405850k 2405850k (100.00%) ( 6.92%) tape 1 : 3 2405850k 2405850k DailySet1-28 tape 2 : 0 0k 0k DailySet1-01 which says I'll have to run a flush in the morning as its going to EOT the second tape with quite a bit left in /dumps. 3018755k+2296810k will be about a 1.6Gb overflow, and my indice saver will fail with EOT. Suggested change to planner algorythm: When runtapes is >1, juggle the order to achieve a best fit within the tapetypes capacity as entered in amanda.conf, overriding the 'dumporder' specified, setting up a seperate list for each allowed tape. And even greater modifcation would be to write that amount of data, then change tapes even without hitting EOT, thereby saving the time and wear on the drive it wastes in writing till EOT is encountered before doing the tape change. In this case it would have saved about an 1 hr & 9 mins, or used that time to put about another gigabyte of smaller DLE's on the first tape used tonight. Just my $0.02. That, and another buck, might get you a cuppa most places :-) -- Cheers, Gene AMD [EMAIL PROTECTED] 320M [EMAIL PROTECTED] 512M 99.27% setiathome rank, not too shabby for a WV hillbilly Yahoo.com attornies please note, additions to this message by Gene Heskett are: Copyright 2003 by Maurice Eugene Heskett, all rights reserved.
