Vects wrote:

> Today I run another 'Full' set and had opportunity to test what Stefan
> said. I still saw single dumping process per host but something got
> changes and I found two dumping processes on the same computer in
> parallel. I'll run amplot on current Full and publish amfiles later
> today.

Fine.

> This is when two dumpers were running on the same host
> ---------------------
> [amanda@backup Full3]$ amstatus Full3 --dumping
> Using /var/lib/amanda/Full3/amdump from Tue Jun 21 11:05:05 IDT 2005
> comp1:/dev/sd3a      0  1375797k dumping    71808k (  5.22%) (12:18:30)
> comp1:/dev/sd5a      0   208657k dumping   184320k ( 88.34%) (12:18:15)

Ok.

> localhost:sda1       0   440160k finished (12:05:13)
> localhost:sda5       0       50k finished (11:33:03)
> localhost:sda6       0   574320k finished (12:12:55)
> localhost:sda7       0  1134510k finished (12:20:08)

DON'T USE localhost IN YOUR DISKLIST!

> SUMMARY          part      real  estimated
>                            size       size
> partition       :  35
> estimated       :  35             41569897k
> flush           :   0         0k
> failed          :   0                    0k           (  0.00%)
> wait for dumping:  12             32046404k           ( 77.09%)
> dumping to tape :   0                    0k           (  0.00%)
> dumping         :   1    169216k   1375797k ( 12.30%) (  0.41%)
> dumped          :  22   8283060k   8147696k (101.66%) ( 19.93%)
> wait for writing:   0         0k         0k (  0.00%) (  0.00%)
> wait to flush   :   0         0k         0k (100.00%) (  0.00%)
> writing to tape :   0         0k         0k (  0.00%) (  0.00%)
> failed to tape  :   0         0k         0k (  0.00%) (  0.00%)
> taped           :  22   8283060k   8147696k (101.66%) ( 19.93%)
>   tape 1        :  22   8283060k   8147696k ( 14.58%) Full308
> 15 dumpers idle : no-bandwidth

Here you are: Your network bandwidth seems to get exhausted ...

> taper idle
> network free kps:      1776
> holding space   :  70809996k ( 98.09%)
>  dumper0 busy   :  0:56:29  ( 96.83%)
>  dumper1 busy   :  0:12:36  ( 21.62%)
>  dumper2 busy   :  0:06:27  ( 11.07%)
>  dumper3 busy   :  0:00:00  (  0.01%)
>    taper busy   :  0:45:41  ( 78.32%)
>  0 dumpers busy :  0:00:00  (  0.00%)
>  1 dumper busy  :  0:41:06  ( 70.46%)        no-bandwidth:  0:41:06
> (100.00%)
>  2 dumpers busy :  0:17:13  ( 29.53%)        no-bandwidth:  0:17:13
> (100.00%)
>  3 dumpers busy :  0:00:00  (  0.00%)
>  4 dumpers busy :  0:00:00  (  0.01%)

You seem to lack bandwidth for running more than 2 dumpers at a time.
What does your Report-email say for the rates you get?

How much "Avg Dump Rate" do you get, are ther DLEs that seem especially
slow?

Stefan.