Actually, I'm not using a holding disk at all. I had no idea that I could be
shortening the life of the tape drive by not using one. So, that's probably
the source of my problem then?
I'd say the error count is insignificant...
# netstat -ni
Name Mtu Net/Dest Address Ipkts Ierrs Opkts Oerrs Collis Queue
lo0 8232 127.0.0.0 127.0.0.1 1492823 0 1492823 0 0 0
dmfe1 1500 xxx.xxx.xxx.0 xxx.xxx.xxx.xx 275677299 0 402788989 1 0 0
Duncan
-----------------------------------------------
Duncan Salada
Titan Corporation
301-925-3222 x375
> -----Original Message-----
> From: Paul Bijnens [mailto:paul.bijnens AT xplanation DOT com]
> Sent: Tuesday, April 12, 2005 10:27 AM
> To: Salada, Duncan S.; amanda-users AT amanda DOT org
> Subject: Re: slow client
>
>
> Salada, Duncan S. wrote:
> >
> > The slow client is a Sun V100 running Solaris 8. While it is
> > certainly a low-end system, it is also the newest. According to
> > Amanda's reports, it's consistently transferring dumps at around 425
> > to 475 KB/s. By contrast, I have another client (a Sun Ultra
> > Enterprise I running 2.6, arguably a dinosaur) that
> consisently dumps
> > a 750 - 800 KB/s.
> >
> > One thing I've thought of is the partition size. The V100 is using
> > the default partitions that the system was shipped with, the biggest
> > of which is a 67G partition. The Ultra I has a 16G
> partition as it's
> > biggest. The traffic on the network isn't bad when I'm doing the
> > backups. I'm just not sure what I should be looking at or for? Any
> > help or tips would be greatly appreciated.
>
>
> Are you using the holdingdisk for that 67 Gbyte partition or
> is the holdingdisk too small? If not, your tapedrive probably stops
> streaming, resulting in poor throughput, and a broken tapedrive in
> a few weeks/months due to the wear/tear on the mechanics.
> To verify, grep the amdump.X output for "PORT-DUMP" (dump to
> a tcp-port, where the taper program is listening, instead of
> the normal word "FILE-DUMP" when dumping to holdingdisk file).
>
> Also watch out for ethernet duplex mismatches (although in that case
> I wouldn't even expect a speed of 40 KB/s.). Is the errorcount
> in "netstat -ni" significant?
>
> --
> Paul Bijnens, Xplanation Tel +32
> 16 397.511
> Technologielaan 21 bus 2, B-3001 Leuven, BELGIUM Fax +32
> 16 397.512
> http://www.xplanation.com/ email:
> Paul.Bijnens AT xplanation DOT com
> **************************************************************
> *********
> * I think I've got the hang of it now: exit, ^D, ^C, ^\, ^Z,
> ^Q, F6, *
> * quit, ZZ, :q, :q!, M-Z, ^X^C, logoff, logout, close,
> bye, /bye, *
> * stop, end, F3, ~., ^]c, +++ ATH, disconnect, halt, abort,
> hangup, *
> * PF4, F20, ^X^X, :D::D, KJOB, F14-f-e, F8-e, kill -1 $$,
> shutdown, *
> * kill -9 1, Alt-F4, Ctrl-Alt-Del, AltGr-NumLock, Stop-A,
> ... *
> * ... "Are you sure?" ... YES ... Phew ... I'm out
> *
> **************************************************************
> *********
>
>
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