I am running Amanda 3.1.1 on a Sun Solaris 10 x86 server.
MY QUESTION:
As you can see below when tape D01004 was at 92% and amanda was looking for a
file to finish writing to the remainder of the tape, amanda picked a file that
was 37GB in size which is
much greater than the remaining size on tape which is 8% x 350GB = 28GB, yet
there were plenty of files waiting to be written to tape that were less than
28GB.
Why would amanda pick a 37GB file when there is only ~28GB left on the tape and
when there were plenty of files waiting to go to tape that were less than 28GB?
And of course I get the following from amreport.
FAILURE DUMP SUMMARY:
hertz /gauss/export/users-h lev 0 partial taper: No space left on device
hertz /gauss/export/users-x lev 0 partial taper: No space left on device
The same thing happened when going from tape D01003 to D01004 but I was not
able to get the amreport and amstatus output.
If you look at the amstatus daily --waittaper output below the 37GB file that
was sent to tape was the second largest file waiting.
Thanks
Robert
-------------------------
My tape size is set to 350GB.
define tapetype LTO2-HWC {
comment "LTO-2-Hardware Compression on."
blocksize 1024 kbytes
length 350000 mbytes #350G compressed
filemark 0 kbytes
speed 27315 kps #27 Mb/s
}
My holdingdisk is 700GB
holdingdisk hd1 {
comment "holding disk"
directory "/zvol/amanda/holdingdisk/daily"
use 700GB
chunksize 10GB
}
my flush-threshold values.
flush-threshold-dumped 185
flush-threshold-scheduled 185
taperflush 100
#taperflush 0
autoflush yes
taperalgo largestfit
dumporder "ttTTTT" # specify the priority order of each dumper
On my last amanda run amreport showed the following:
USAGE BY TAPE:
Label Time Size % Nb Nc
D01003 2:08 284918M 81.4 9 9
D01004 2:02 321893M 92.0 6 6
DUMP SUMMARY:
DUMPER STATS
TAPER STATS
HOSTNAME DISK L ORIG-MB OUT-MB COMP% MMM:SS KB/s
MMM:SS KB/s
--------------------------------- ------------------------------------------
-----------------
hertz -ss/export/users-a 0 26794 26794 -- FLUSH
11:48 38753.2
hertz -ss/export/users-a 1 26783 26783 -- FLUSH
12:25 36812.9
hertz -ss/export/users-a 2 26783 26783 -- FLUSH
12:14 37364.6
hertz -ss/export/users-a 1 48 48 -- 28:16 28.8
hertz -ss/export/users-b 0 29130 29130 -- 81:55 6069.3
hertz -ss/export/users-c 0 64150 64150 -- 132:42 8250.6
20:44 52805.4
hertz -ss/export/users-d 0 26484 26484 -- 97:55 4616.0
hertz -ss/export/users-e 0 9753 9753 -- 17:50 9332.4
hertz -ss/export/users-f 0 12226 12226 -- 8:49 23679.5
21:21 9773.0
hertz -ss/export/users-g 0 26838 26838 -- 41:54 10931.7
hertz -ss/export/users-h 0 37395 37395 -- 36:45 17366.4
hertz -ss/export/users-i 0 404 404 -- 0:51 8170.1
hertz -ss/export/users-j 0 57423 57423 -- 120:13 8151.7
22:01 44512.2
hertz -ss/export/users-k 0 11347 11347 -- 24:53 7783.3
hertz -ss/export/users-l 0 71620 71620 -- 144:56 8433.8
30:07 40586.1
hertz -ss/export/users-m 0 60906 60906 -- 50:06 20745.9
25:50 40237.0
hertz -ss/export/users-n 0 42344 42344 -- 105:39 6839.8
hertz -ss/export/users-o 0 9718 9718 -- 51:37 3213.7
hertz -ss/export/users-p 0 24055 24055 -- 59:56 6849.2
hertz -ss/export/users-q 1 10807 10807 -- FLUSH
5:58 30912.5
hertz -ss/export/users-q 0 10803 10803 -- FLUSH
341:44 539.5
hertz -ss/export/users-q 1 10803 10803 -- FLUSH
6:04 30391.8
hertz -ss/export/users-q 2 3 3 -- 0:29 96.8
hertz -ss/export/users-r 0 56326 56326 -- 91:44 10479.8
hertz -ss/export/users-s 0 91655 91655 -- 167:25 9343.8
40:44 38402.0
hertz -ss/export/users-t 0 9534 9534 -- 13:48 11792.9
hertz -ss/export/users-u 0 2609 2609 -- 3:08 14220.7
hertz -ss/export/users-v 0 19500 19500 -- 49:55 6667.9
hertz -ss/export/users-w 0 48145 48145 -- 100:16 8195.2
hertz -ss/export/users-x 0 70863 70863 -- PARTIAL
16:31 73222.7
hertz -ss/export/users-y 0 35999 35999 -- 58:39 10474.4
hertz -ss/export/users-z 0 35903 35903 -- 75:45 8089.3
[97][amandaba...@hertz]:~% amstatus daily --waittaper
Using /var/amanda/daily/amdump
>From Sun Jul 4 01:34:47 EDT 2010
hertz:/gauss/export/users-a 1 47m dump done (2:25:37), waiting for
writing to tape
hertz:/gauss/export/users-b 0 29130m dump done (8:38:32), waiting for
writing to tape
hertz:/gauss/export/users-d 0 26484m dump done (8:20:24), waiting for
writing to tape
hertz:/gauss/export/users-e 0 9753m dump done (2:42:03), waiting for
writing to tape
hertz:/gauss/export/users-g 0 26838m dump done (4:52:43), waiting for
writing to tape
hertz:/gauss/export/users-h 0 37395m writing to tape (8527m done (22.80%))
(11:41:04)
hertz:/gauss/export/users-i 0 404m dump done (1:58:27), waiting for
writing to tape
hertz:/gauss/export/users-k 0 11347m dump done (3:06:56), waiting for
writing to tape
hertz:/gauss/export/users-n 0 42344m dump done (6:42:28), waiting for
writing to tape
hertz:/gauss/export/users-o 0 9718m dump done (3:17:14), waiting for
writing to tape
hertz:/gauss/export/users-p 0 24054m dump done (4:56:48), waiting for
writing to tape
hertz:/gauss/export/users-q 2 2m dump done (1:57:35), waiting for
writing to tape
hertz:/gauss/export/users-t 0 9533m dump done (2:24:12), waiting for
writing to tape
hertz:/gauss/export/users-u 0 2608m dump done (2:01:35), waiting for
writing to tape
hertz:/gauss/export/users-v 0 19499m dump done (3:56:51), waiting for
writing to tape
hertz:/gauss/export/users-w 0 48144m dump done (7:11:56), waiting for
writing to tape
hertz:/gauss/export/users-y 0 35999m dump done (5:31:40), waiting for
writing to tape
hertz:/gauss/export/users-z 0 35902m dump done (4:33:00), waiting for
writing to tape
SUMMARY part real estimated
size size
partition : 32
estimated : 26 704856m
flush : 6 112773m
failed : 0 0m ( 0.00%)
wait for dumping: 0 0m ( 0.00%)
dumping to tape : 0 0m ( 0.00%)
dumping : 0 0m 0m ( 0.00%) ( 0.00%)
dumped : 26 854377m 704856m (121.21%) (121.21%)
wait for writing: 17 331815m 290273m (114.31%) ( 47.08%)
wait to flush : 0 0m 0m (100.00%) ( 0.00%)
writing to tape : 1 37395m 34541m (108.26%) ( 5.31%)
failed to tape : 0 0m 0m ( 0.00%) ( 0.00%)
taped : 14 597941m 492814m (121.33%) ( 73.13%)
6 dumpers idle : no-dumpers
taper status: Writing hertz:/gauss/export/users-h
_____________________________________________________________________
Robert P. McGraw, Jr.
Manager, Computer System EMAIL: [email protected]
Purdue University ROOM: MATH-807
Department of Mathematics PHONE: (765) 494-6055
150 N. University Street
West Lafayette, IN 47907-2067
