Re: [Bacula-users] Slow backup on Sparc SunFire 280R

Wed, 19 Jul 2006 12:00:19 -0700

Do you mean that the whole 280R machine maybe running at half-duplex?!

Gabriele Bulfon - Sonicle S.r.l.
Tel +39 028246016 Int. 30 - Fax +39 028243880
Via Felice Cavallotti 16 - 20089, Rozzano - Milano - ITALY
http://www.sonicle.com



----------------------------------------------------------------------------------

Da: Kern Sibbald <[EMAIL PROTECTED]>
A: bacula-users@lists.sourceforge.net
Cc: Gabriele Bulfon <[EMAIL PROTECTED]>
Data: 19 luglio 2006 20.53.39 CEST
Oggetto: Re: [Bacula-users] Slow backup on Sparc SunFire 280R

One user had similar problems with his Sparc and it turned out the problem was
his switches which are auto speed detecting (10/100Mb). The problem was when
he plugged a device in to the switch, the switch detected the speed then went
into half-duplex mode making Bacula run very slowly. To correct the problem
he had to power off the switch then power it back on.

On Wednesday 19 July 2006 09:07, Gabriele Bulfon wrote:
> I monitored a machine tonight.
> This is a self-backup machine running both the server and the fd, still on
> a sparc 280r. The avarage throughput is 1Mb/sec, while the network backup
> of another fd is 4Mb/sec. While the machine was backing-up itself, I used
> "top" to see the machine status. It was 4% of CPU load, with 3% assigned to
> postgres (I use postgres as the bacula db). Then there was 0.5% for
> bacula-sd and 0.5% for bacula-fd.
> Maybe I should use some sort of buffering on bacula?
> Gabriele Bulfon - Sonicle S.r.l.
> Tel +39 028246016 Int. 30 - Fax +39 028243880
> Via Felice Cavallotti 16 - 20089, Rozzano - Milano - ITALY
> http://www.sonicle.com
> ---------------------------------------------------------------------------
>------- Da: Hristo Benev <[EMAIL PROTECTED]>
> A: Gabriele Bulfon <[EMAIL PROTECTED]>
> Cc: MaxxAtWork <[EMAIL PROTECTED]> bacula-users@lists.sourceforge.net
> Data: 18 luglio 2006 16.43.04 CEST
> Oggetto: Re: [Bacula-users] Slow backup on Sparc SunFire 280R
>
> On Tue, 2006-07-18 at 16:37 +0200, Gabriele Bulfon wrote:
> > Do you have any suggestion about parameters I may use to optimize the
> > daemons?
>
> I'm not a developer :( ... unfortunately --> but you need to see where
> is the problem (due high CPU usage; low available RAM etc..) to ask for
> optimizations.
> Furthermore I do not have sparc machines in my setup to give you
> comparison data.
>
> > Gabriele Bulfon - Sonicle S.r.l.
> > Tel +39 028246016 Int. 30 - Fax +39 028243880
> > Via Felice Cavallotti 16 - 20089, Rozzano - Milano - ITALY
> > http://www.sonicle.com
> >
> >
> >
> > -------------------------------------------------------------------------
> >---------
> >
> > Da: Hristo Benev <[EMAIL PROTECTED]>
> > A: Gabriele Bulfon <[EMAIL PROTECTED]>
> > Cc: MaxxAtWork <[EMAIL PROTECTED]> bacula-
> > [EMAIL PROTECTED]
> > Data: 18 luglio 2006 16.32.54 CEST
> > Oggetto: Re: [Bacula-users] Slow backup on Sparc SunFire 280R
> >
> > My opinion is that you have bottleneck somewhere (probably CPU
> > or RAM,
> > network).
> > You need to monitor those machines during backup to see where
> > exactly.
> >
> > On Tue, 2006-07-18 at 15:53 +0200, Gabriele Bulfon wrote:
> > > When the sparc machine are just clients, I may achieve
> >
> > 2-4Mb/sec
> >
> > > When these machines are both servers and clients (backup
> >
> > themselves),
> >
> > > often I achieve less then 1Mb!!
> > >
> > >
> > > Gabriele Bulfon - Sonicle S.r.l.
> > > Tel +39 028246016 Int. 30 - Fax +39 028243880
> > > Via Felice Cavallotti 16 - 20089, Rozzano - Milano - ITALY
> > > http://www.sonicle.com
> >
> >
> > -------------------------------------------------------------------------
> >---------
> >
> > > Da: Hristo Benev <[EMAIL PROTECTED]>
> > > A: Gabriele Bulfon <[EMAIL PROTECTED]>
> > > Cc: MaxxAtWork <[EMAIL PROTECTED]> bacula-
> > > [EMAIL PROTECTED]
> > > Data: 18 luglio 2006 15.43.15 CEST
> > > Oggetto: Re: [Bacula-users] Slow backup on Sparc SunFire
> >
> > 280R
> >
> > > Just to exclude network!
> > >
> > > What is the transfer rate that you can achieve with those
> > > servers?
> > >
> > > On Tue, 2006-07-18 at 15:37 +0200, Gabriele Bulfon wrote:
> > > > Oh no. I do not use compression at all.
> > > > And if I'd use compression, I'd use hardware one.
> > > > I don't think it's a problem of compression.
> > > > I have this problem only on sparc machines.
> > > > And they slow down the entire network backup during the
> > >
> > > night
> > >
> > > > Gabriele Bulfon - Sonicle S.r.l.
> > > > Tel +39 028246016 Int. 30 - Fax +39 028243880
> > > > Via Felice Cavallotti 16 - 20089, Rozzano - Milano -
> >
> > ITALY
> >
> > > > http://www.sonicle.com
> >
> >
> > -------------------------------------------------------------------------
> >---------
> >
> > > > Da: Hristo Benev <[EMAIL PROTECTED]>
> > > > A: Gabriele Bulfon <[EMAIL PROTECTED]>
> > > > Cc: MaxxAtWork <[EMAIL PROTECTED]> bacula-
> > > > [EMAIL PROTECTED]
> > > > Data: 18 luglio 2006 15.16.37 CEST
> > > > Oggetto: Re: [Bacula-users] Slow backup on Sparc SunFire
> > >
> > > 280R
> > >
> > > > Do you use compression, because You have difference in
> > > > processing power
> > > > Sparc III is much less powerful than Opteron?
> > > >
> > > > On Tue, 2006-07-18 at 13:58 +0200, Gabriele Bulfon wrote:
> > > > > Yes, it's a network backup. The SunFire is running the
> > >
> > > FD.
> > >
> > > > > The server is running on a v20z.
> > > > > This server backup many other machines, but no other
> >
> > one
> >
> > > is
> > >
> > > > running
> > > >
> > > > > that slow.
> > > > > I usually achieve 5-8MB/s both on Windows clients and
> > >
> > > other
> > >
> > > > solaris 10
> > > >
> > > > > platforms (x86/amd).
> > > > > May it be that the compiled agent for SPARC has some
> > > >
> > > > problem?
> > > >
> > > > > Gabriele Bulfon - Sonicle S.r.l.
> > > > > Tel +39 028246016 Int. 30 - Fax +39 028243880
> > > > > Via Felice Cavallotti 16 - 20089, Rozzano - Milano -
> > >
> > > ITALY
> > >
> > > > > http://www.sonicle.com
> >
> >
> > ______________________________________________________________________
> >
> > > > > Da: MaxxAtWork <[EMAIL PROTECTED]>
> > > > > A: bacula-users@lists.sourceforge.net
> > > > > Data: 18 luglio 2006 13.22.13 CEST
> > > > > Oggetto: Re: [Bacula-users] Slow backup on Sparc
> >
> > SunFire
> >
> > > > 280R
> > > >
> > > > > On 7/14/06, Gabriele Bulfon <[EMAIL PROTECTED]>
> >
> > wrote:
> > > > > Hello,
> > > > > I have some bacula installations on SunFire 280R Sparc
> > > > > machines, with Solaris 10.
> > > > > These machines apperar to be very very slow with
> > > > > respect to other installations (such as v20z) with
> > > > > same LTO2 device.
> > > > > As you can see from the report, 60Gb are copied in 9
> > > > > hours, with an avarage rate of 1898.9 KB/s!
> > > > > On a v20z, the same amount of data is done in 5 hours
> > > > > or less, with an avarage a rate of 3139.2 KB/s..
> > > > >
> > > > >
> > > > > Are you talking about local backups, i.e. both your
> > >
> > > bacula-
> > >
> > > > fd
> > > >
> > > > > and bacula-sd are running on the same server, or there
> >
> > is
> >
> > > a
> > >
> > > > > network in between? In the latter case you might be
> > >
> > > hitting
> > >
> > > > > the network transfer limit.
> > > > >
> > > > > Cheers,
> > > > > --
> > > > > Maxx
> >
> >
> > -------------------------------------------------------------------------
> >
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> > > > > _______________________________________________
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> >
> > users
> >
> >
> >
> >
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> > >
> > > users
> > >
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> > >
> > > --
> > > Hristo Benev
> > > IT Manager
> > >
> > > WAVEROAD
> > > Partners in Telecommunications
> > >
> > > 514-935-2020 x225 T
> > > 514-935-1001 F
> > > www.waveroad.ca
> > > [EMAIL PROTECTED]
> >
> > --
> > Hristo Benev
> > IT Manager
> >
> > WAVEROAD
> > Partners in Telecommunications
> >
> > 514-935-2020 x225 T
> > 514-935-1001 F
> > www.waveroad.ca
> > [EMAIL PROTECTED]
>
> --
> Hristo Benev
> IT Manager
> WAVEROAD
> Partners in Telecommunications
> 514-935-2020 x225 T
> 514-935-1001 F
> www.waveroad.ca
> [EMAIL PROTECTED] 



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