ADSM-L

Re: Slow backups

2002-10-13 11:18:52
Subject: Re: Slow backups
From: Edgardo Moso <edgardo_moso AT KINDREDHEALTHCARE DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Sun, 13 Oct 2002 11:19:28 -0400
In the dsm.opt file, I also set my tcpnodelay to yes, Txnbytelimit to 25600
in winnt, and in w2k machine I set my txnbytelimit to 131072 but my RAM is
4 GB.

By the way,  what's the profile of your files' sizes?





From: Mario Behring <mariobehring AT YAHOO DOT COM> on 10/13/2002 11:06 AM

Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>

To:   ADSM-L AT VM.MARIST DOT EDU
cc:
Subject:  Re: Slow backups

Yes Edgardo, my environment is mixed. I have AIX, W2K, NT and NetWare. I
had already changed the configurations at the server following your tips
but I cannot do it at production servers, at least not today.

My self tune parameters are all set to Yes.

Any other ideas ?

Mario



--- Edgardo Moso <edgardo_moso AT KINDREDHEALTHCARE DOT COM> wrote:
> Verify your network adapter in the server if it is set as auto then
> change
> it to full... ( if the adapter is 1 GB set it to ! GB full..not auto)
> Do you have mixed clients?  ( say w2k, aix, netware).   Mine, I set my
> selftunetxn and seltunebuf  to yes. I have mixed clients in one TSM
> server..
>
> Your client network adapter should be set to full also. For the other
> parameters I'm talking that's in the W2k or Winnt client.
>
>
>
>
>
>
>
> From: Mario Behring <mariobehring AT YAHOO DOT COM> on 10/13/2002 09:44 AM
>
> Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
>
> To:   ADSM-L AT VM.MARIST DOT EDU
> cc:
> Subject:  Re: Slow backups
>
> Edgardo,
>
> Should I do this configurations both at the server an at the client ?
>
> Mario
>
>
> --- Edgardo Moso <edgardo_moso AT KINDREDHEALTHCARE DOT COM> wrote:
> > Mario,
> >
> > I got the same problem as yours before.  Here's what I did:
> >
> > 1) for the restore,  adjust your  tcpbuffsize higher but be sure to
> set
> > you
> > network adapter to correct setting.  It should be set to full duplex (
> > if
> > it's capable .. say 100 MB full duplex) and in the advanced properties
> > parameter, set the received buffer to at least 64 or higher depending
> > your
> > CPU resource and memory.
> > 2) for backup,  adjust your tcpwindowsize to atleast 63...to 2MB..,
> then
> > your  network adapter as full ( not auto) ... then in the advanced
> > proeprties set the coalesce buffer to at least 50% of the transmit
> > buffer....the transmit buffer set it to almost equal to received
> buffer.
> >
> > Try this you will see the performance differrence...if you have a 1 GB
> > adapter card and your resourceutil is set 10 ..you'll be getting
> almost
> > the
> > maximum speed of 3590 tape drive...at least 35 GB.
> >
> >
> > Enjoy,
> >
> > Ed
> >
> >
> >
> >
> > From: Mario Behring <mariobehring AT YAHOO DOT COM> on 10/13/2002 08:46 AM
> >
> > Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
> >
> > To:   ADSM-L AT VM.MARIST DOT EDU
> > cc:
> > Subject:  Slow backups
> >
> > Hi list,
> >
> > I have just installed a TSM 5.1.0 Server on a W2K Server box. The
> > database
> > was restored from a NT server running TSM 4.1.3. The upgrade was
> > successful and the new TSM is up and running.
> >
> > The problem is that the backup operations are taking too long. A full
> > backup from a Notes Server that usually took 3 hours to complete is
> now
> > taking 12 hours !! The 5.1.0 cilent is already installed at this Notes
> > server. Please notice that I am talking about a simlpe file backup, it
> > is
> > not the TDP for Domino.
> >
> > Also, I perfomed the backup on two NetWare servers running the 4.1.X
> > client and they all are taking much more time than before, when using
> > the
> > TSM 4.1.3 server.
> >
> > I tried to tune some parameters at the dsm.opt in the Notes Server,
> like
> > including the RESOURCEUTIILZATION 10 and setting the MAXNUMMP to 8 at
> > the
> > TSM Server but .... despite the multiple sessions, the backup was
> still
> > very slow.
> >
> > Any ideas on this ??
> >
> > Thank you.
> >
> > Mario Behring
> > IT Consultant
> > 55 11 9450-8383
> >
> > __________________________________________________
> > Do you Yahoo!?
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>
>
> __________________________________________________
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