ADSM-L

Re: [ADSM-L] Mountpoints question

2017-09-09 13:29:52
Subject: Re: [ADSM-L] Mountpoints question
From: Stefan Folkerts <stefan.folkerts AT GMAIL DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Sat, 9 Sep 2017 19:28:05 +0200
Robert,

Nope, I would not enable client-side compression when backing up to a u7c
device class, the drive can do it much more efficiently without putting
extra CPU load on the client.


On Sat, Sep 9, 2017 at 11:42 AM, rouzen AT univ.haifa.ac DOT il <
rouzen AT univ.haifa.ac DOT il> wrote:

> Hi Stefan ....
>
> Great .... Make sense !
>
> I made all the changes and works fine.
>
> The only thing I have to take care is the communication between the client
> to the TSM server, very slow !
>
> Meantime It will be wise to activate in the dsm.opt of the client the
> option:  compression YES     ????
>
> I remind that I backup directly to LTO7 tape (ULTRIUM7C).
>
> Best Regards
>
> Robert
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
> Of
> Stefan Folkerts
> Sent: Thursday, September 7, 2017 5:28 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: [ADSM-L] Mountpoints question
>
> Robert,
>
> The keep mount option is only applicable if you migrate the data to a
> sequential volume *after* you store it in the diskpool, so with your direct
> to tape setup here it doesn't do anything.
> The session will hold a single drive for the entire duration of its backup
> session.
>
> On Thu, Sep 7, 2017 at 3:23 PM, rouzen AT univ.haifa.ac DOT il <
> rouzen AT univ.haifa.ac DOT il> wrote:
>
> > Great Stefan
> >
> > What about the keep mount option need it ?
> >
> > Best regards
> >
> > Robert
> >
> >
> >
> > Envoyé depuis mon smartphone Samsung Galaxy.
> >
> >
> > -------- Message d'origine --------
> > De : Stefan Folkerts <stefan.folkerts AT GMAIL DOT COM> Date : 07/09/2017
> > 15:41 (GMT+02:00) À : ADSM-L AT VM.MARIST DOT EDU Objet : Re: [ADSM-L]
> > Mountpoints question
> >
> > Robert,
> >
> > >09/05/2017 16:44:17      ANR0539W Transaction failed for session 20900
> for
> > > node IIP DM-LAB-FISH. This node has exceeded its maximum number of
> > >>
> > mount points. (SESSION: 20900)
> >
> > You stated that the default resource util is 2, you also stated that
> > "maxnummp is 1" well, that's when you get this message.
> > The client is trying to get two mountpounts but you are restricting it
> > to one.
> > The maxnummp must be the same or higher as the resource util, now you
> > have it the other way around.
> > Just lower the default value of 2 for the resource util to 1.
> >
> >
> >
> >
> > On Thu, Sep 7, 2017 at 10:29 AM, Krzysztof Przygoda
> > <przygod AT gmail DOT com>
> > wrote:
> >
> > > Hi Robert
> > > Number of possible mount points you control from server. In your
> > > case it will be:
> > > update node your_nodename MAXNUMMP=1
> > >
> > > Good luck and regards
> > > Krzysztof
> > >
> > > 2017-09-07 9:36 GMT+02:00 rouzen AT univ.haifa.ac DOT il <
> > rouzen AT univ.haifa.ac DOT il
> > > >:
> > >
> > > > Hi Stefan
> > > >
> > > > First thanks for the input .....
> > > >
> > > > O.K but how I avoid this message:
> > > >
> > > > 09/05/2017 16:44:17      ANR0539W Transaction failed for session
> 20900
> > > for
> > > > > node IIP DM-LAB-FISH. This node has exceeded its maximum number
> > > > > of  >
> > > > mount points. (SESSION: 20900)
> > > >
> > > > Maybe the option in node :  Keep Mount Point?:     TO YES   ( Now is
> > NO)
> > > >
> > > > Regards
> > > >
> > > > Robert
> > > >
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On
> > > > Behalf
> > Of
> > > > Stefan Folkerts
> > > > Sent: Thursday, September 7, 2017 8:49 AM
> > > > To: ADSM-L AT VM.MARIST DOT EDU
> > > > Subject: Re: [ADSM-L] Mountpoints question
> > > >
> > > > It might seem pretty obvious but you need to set
> > > > resourceutilization
> > to 1
> > > > and not 3.
> > > > Also, the amount of mountpoints doesn't equal the amount of tapes
> > > > a
> > > backup
> > > > can use, it limits the amount of concurrent mountpoints a backup
> > > > can
> > use.
> > > >
> > > >
> > > >
> > > > On Thu, Sep 7, 2017 at 7:00 AM, rouzen AT univ.haifa.ac DOT il <
> > > > rouzen AT univ.haifa.ac DOT il> wrote:
> > > >
> > > > > Hi to all
> > > > >
> > > > > Want to backup  directly to LTO7 tapes and only in one tape till
> > > > > is
> > > full.
> > > > >
> > > > > When my maxnummp is 1 for the node name got a lot of warning as:
> > > > >
> > > > > 09/05/2017 16:44:17      ANR0539W Transaction failed for session
> > 20900
> > > > for
> > > > > node IIP DM-LAB-FISH. This node has exceeded its maximum number
> > > > > of mount points. (SESSION: 20900)
> > > > >
> > > > > I made some research and find this article:
> > > > > http://www-01.ibm.com/support/docview.wss?uid=swg21584672
> > > > >
> > > > > No resourceutilization option specified so default:    2
> > > > >
> > > > > As the article said  I increase the maxnummp to 3 , this night
> > > > > the backup took 3 tapes !!!!!
> > > > >
> > > > > In my q node f=d I see:    Keep Mount Point?: No
> > > > >
> > > > > Did I have to change it to YES , to backup to only one tape ?
> > > > >
> > > > > Any suggestions ???
> > > > >
> > > > > Best Regards
> > > > >
> > > > > Robert
> > > > >
> > > >
> > >
> >
>

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