Thank you to everybody for their help and suggestions. I went ahead and disabled hardware compression on my drive.
Unfortunately, I am running into further problems in my attempts to clear out the previously spooled dumps with amflush. amflush fails after a short time without writing anything at all to tape. Here is what happens... I rum amflush and get the following output: Scanning /local0/ambackup/nextrials... 20030703: found Amanda directory. 20030704: found Amanda directory. Multiple Amanda directories, please pick one by letter: A. 20030703 B. 20030704 Select directories to flush [A..B]: [ALL] I get the same results, whether I pick A, B, or ALL. The amflush report looks like: STATISTICS: <big fat 0's for every reported time and size value> <Avg Compressed Size, Avg Dump Rate and Avg Tp Write Rate all report "--"> NOTES: driver: WARNING: /local0/ambackup: 83886080 KB requested, but only 61325902 KB available taper: tape NEXTRIALS026 kb 0 fm 0 [OK] DUMP SUMMARY: DUMPER STATS TAPER STATS HOSTNAME DISK L ORIG-KB OUT-KB COMP% MMM:SS KB/s MMM:SS KB/s -------------------------- --------------------------------- ----------- anubis / NO FILE TO FLUSH --------------------------- anubis /local0 NO FILE TO FLUSH --------------------------- anubis /usr/local NO FILE TO FLUSH --------------------------- anubis /var NO FILE TO FLUSH --------------------------- athene.web / NO FILE TO FLUSH --------------------------- athene.web /var NO FILE TO FLUSH --------------------------- etc, etc, etc... While amflush is running, amstatus reports that everything is waiting to flush, as in: flush : 47 7288612k <0k, 0.00% values for everything else> wait to flush : 47 7288612kk 7288612k (100.00%) ( 0.00%) 4 dumpers idle, 0 dumpers busy... The amanda log file reports: DISK amflush hades / DISK amflush hades /usr etc, etc... DISK amflush bali.web /var START amflush date 20030707 START driver date 20030707 WARNING driver WARNING: /local0/ambackup/nextrials: 104857600 KB requested, but only 61325652 KB available. STATS driver startup time 0.071 START taper datestamp 20030707 label NEXTRIALS026 tape 0 The amflush log file reports: amflush: datestamp 20030707 driver: pid 58387 executable driver version 2.4.3b2 driver: send-cmd time 0.004 to taper: START-TAPER 20030707 FLUSH ra /local0 20030703 0 /local0/ambackup/nextrials/20030703/ra._local0.0 FLUSH ra /usr/local 20030703 1 /local0/ambackup/nextrials/20030703/ra._usr_local .1 etc, etc... ENDFLUSH driver: adding holding disk 0 dir /local0/ambackup/nextrials size 61325652 reserving 61325652 out of 61325652 for degraded-mode dumps driver: start time 0.071 inparallel 4 bandwidth 1410666408 diskspace 61325652 di r OBSOLETE datestamp 20030707 driver: drain-ends tapeq LFFO big-dumpers sssS taper: pid 58388 executable taper version 2.4.3b2 taper: page size is 4096 taper: buffer size is 32768 taper: buffer[00] at 0x30048000 taper: buffer[01] at 0x30050000 taper: buffer[02] at 0x30058000 taper: buffer[03] at 0x30060000 taper: buffer[04] at 0x30068000 taper: buffer[05] at 0x30070000 taper: buffer[06] at 0x30078000 taper: buffer[07] at 0x30080000 taper: buffer[08] at 0x30088000 taper: buffer[09] at 0x30090000 taper: buffer[10] at 0x30098000 taper: buffer[11] at 0x300a0000 taper: buffer[12] at 0x300a8000 taper: buffer[13] at 0x300b0000 taper: buffer[14] at 0x300b8000 taper: buffer[15] at 0x300c0000 taper: buffer[16] at 0x300c8000 taper: buffer[17] at 0x300d0000 taper: buffer[18] at 0x300d8000 taper: buffer[19] at 0x300e0000 taper: buffer structures at 0x300e8000 for 240 bytes taper: read label `NEXTRIALS026' date `20030707' taper: wrote label `NEXTRIALS026' date `20030707' driver: result time 8.932 from taper: TAPER-OK driver: send-cmd time 8.932 to taper: FILE-WRITE 00-00001 /local0/ambackup/nextr ials/20030703/ra._local0.0 ra /local0 0 20030703 driver: state time 8.932 free kps: 1410666408 space: 61325652 taper: writing idl e-dumpers: 4 qlen tapeq: 46 runq: 0 roomq: 0 wakeup: 86400 driver-idle: not-idle driver: interface-state time 8.932 if : free 600000 if FXP0: free 1410065408 if LOCAL: free 1000 driver: hdisk-state time 8.932 hdisk 0: free 61325652 dumpers 0 This is frustrating, I need to get the spool disk flushed or else backups will fail completely tonight due to lack of space. Amanda has been chugging along just fine for over a year, this problem has just now crept up as my ammount of data storage has grown. Thanks again, you folks are super helpful! --Joshua D. Bello On Mon, Jul 07, 2003 at 10:26:09AM -0700, Joshua D. Bello wrote: > I am currently experiencing problems with Amanda backup runs completing > successfully, supposedly due to running out of tape. I am using > Amanda 2.4.3 on a FreeBSD 4.8-STABLE machine, backing up to 35/70GB > DLT 7000 drive. Compression is enabled on the drive, and we are also > using compression within Amanda. We are getting nowhere near the > expected 70GB compressed capacity of the tapes.