We have a strange problem with throughput to the backup server. The
backup-server is foo1 and the fileserver is foo3. Both servers have a 100Mb
NIC and connected to the same switch.
I can copy a 25Mb file from the /usr/share/admin/felles/infoavd share in 3
seconds to my computer, so the throughput from the fileserver should be ok.
But as you can see amanda finished that copy (4Gb) 17 hours after the
backup started.
Both servers run amanda 2.4.2p2-1.
Some parameters from amanda.conf:
netusage 10 Kbps
# Disk is 40Gb
holdingdisk hd1 {
directory "/u05/amanda/dumps"
comment "main holding disk"
use -10 Mb
chunksize 2000 Mb
}
define tapetype SLR100 {
comment "Tandberg SLR100 tape drives"
length 5 mbytes
filemark 8 kbytes
speed 1650 kps
}
define dumptype user-tar {
root-tar
comment "user partitions dumped with tar"
priority medium
}
define interface local {
comment "a local disk"
use 10 kbps
}
define interface eth0 {
comment "100 Mbps ethernet"
use 4 kbps
}
Here is a output of the backup running now: (Ignore the problem with
/usr/share/admin/data)
foo1:/ 11088k finished (22:32:22)
foo1:/boot 1 32k finished (22:31:31)
foo1:/home 1 11264k finished (22:31:55)
foo1:/u01 0 1012672k finished (23:12:57)
foo1:/u02 1 32k finished (22:31:19)
foo1:/u03 1 446624k finished (22:48:12)
foo1:/u04 0 1478240k finished (23:25:29)
foo1:/usr 13328k finished (22:32:36)
foo1:/var 14128k finished (22:32:04)
foo2:/11280k finished (22:31:43)
foo2:/boot1 32k finished (22:31:21)
foo2:/home17968k finished (22:33:39)
foo2:/usr 13360k finished (22:32:17)
foo2:/var 1 41920k finished (22:48:57)
foo3:/0 1018976k finished (2:58:04)
foo3:/boot1 32k finished (22:31:23)
foo3:/home4 1410816k finished (6:08:59)
foo3:/usr/share/admin 0 6924700k dumping 408896k ( 5.90%)
(15:02:
52)
foo3:/usr/share/admin/data2 [mesg read: Connection reset by peer]
(0:35:
46)
foo3:/usr/share/admin/felles/infoavd 0 4237920k finished (15:44:45)
foo3:/var 1 29632k finished (22:36:18)
SUMMARY part real estimated
size size
partition : 21
estimated : 21 16506208k
failed : 1 71160k ( 0.43%)
wait for dumping: 0 0k ( 0.00%)
dumping to tape : 0 0k ( 0.00%)
dumping : 1 408896k 6924700k ( 5.90%) ( 2.48%)
dumped : 19 9709344k 9510348k (102.09%) ( 58.82%)
wait for writing: 00k0k ( 0.00%) ( 0.00%)
writing to tape : 00k0k ( 0.00%) ( 0.00%)
failed to tape : 00k0k ( 0.00%) ( 0.00%)
taped : 19 9709344k 9510348k (102.09%) ( 58.82%)
5 dumpers idle : not-idle
taper idle
network free kps: 239878
holding space : 28343992k ( 80.37%)
dumper0 busy : 15:37:02 ( 90.65%)
dumper1 busy : 0:19:20 ( 1.87%)
dumper2 busy : 2:04:15 ( 12.02%)
taper busy : 1:51:04 ( 10.75%)
0 dumpers busy : 0:00:13 ( 0.02%) start-wait: 0:00:13 (100.00%)
1 dumper busy : 16:32:22 ( 96.01%) client-constrained: 15:49:30 ( 95.68%)
not-idle: 0:42:03 ( 4.24%)
start-wait: 0:00:49 ( 0.08%)
2 dumpers busy : 0:34:31 ( 3.34%) client-constrained: 0:34:19 ( 99.44%)
start-wait: 0:00:11 ( 0.56%)
3 dumpers busy : 0:06:30 ( 0.63%) client-constrained: 0:06:30 (
99.90%)
Vegard
