[Samba] much slower backups using smbtar
Sutto Zoltan
sutto.zoltan at rutinsoft.hu
Fri Feb 6 20:51:45 GMT 2004
Hi!
I have moved our samba configuration to a new hardware.
Old config:
PII 266 MHz
96MB memory
RedHat 7.2
20Gb ide hard drive for samba shares
samba-*-2.2.7-3.7.2 packages installed
kernel-2.4.20-28.7
New config:
P4 2.4GHz
512MB memory
RedHat 9.0
60GB scsi hard drive for samba shares and OS
40GB ide hard drive for backups
samba-*-2.2.7a-8.9.0 packages installed
kernel-2.4.20-28.9
There is a backup script running from cron which create daily incremental
and (full on friday)
backups from samba shares (>6GB/share) using smbtar.
On the new config this script runs much slower. I can not figure it out what
could be the problem.I have recompiled samba-2.2.7a package from srpm but
nothing has
changed. Same with samba-2.2.8a.
Output of backup script on PII config:
538112 ( 3981.1 kb/s)
23040 ( 3214.3 kb/s)
56320 ( 3928.6 kb/s)
27648 ( 3000.0 kb/s)
314368 ( 3837.5 kb/s)
17920 ( 2916.7 kb/s)
249344 ( 3927.4 kb/s)
27648 ( 3000.0 kb/s)
18432 ( 3000.0 kb/s)
Output of backup script on P4 config:
37888 ( 146.2 kb/s)
63488 ( 73.8 kb/s)
59392 ( 92.1 kb/s)
29184 ( 67.9 kb/s)
24576 ( 114.3 kb/s)
97280 ( 74.9 kb/s)
137216 ( 79.7 kb/s)
56320 ( 87.3 kb/s)
36352 ( 84.5 kb/s)
88451 ( 82.3 kb/s)
96256 ( 74.7 kb/s)
62464 ( 72.5 kb/s)
606180 ( 76.2 kb/s)
21071 ( 98.5 kb/s)
Any help would be appreciated.
Thanks
Zoltan Sutto
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