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[BackupScripts-L] Re: [Veritas-bu] number of tapes

2003-05-08 11:15:44
Subject: [BackupScripts-L] Re: [Veritas-bu] number of tapes
From: Sen" <discussion.groups AT gmx DOT net (Sen)
Date: Thu, 8 May 2003 23:15:44 +0800 
is there a command to list the files on a tape?

----- Original Message ----- 
From: "Nuno.F.Costa" <Nuno.F.Costa AT seg-social DOT pt>
To: "Sen" <discussion.groups AT gmx DOT net>; "Kennedy, Jeffrey"
<jkennedy AT qualcomm DOT com>
Cc: "netbackup-l" <netbackup-l AT yahoogroups DOT com>; "nbu-lserv"
<nbu-lserv AT dsihost-srv01 DOT com>; <veritas-bu AT mailman.eng.auburn DOT edu>
Sent: Thursday, May 08, 2003 11:12 PM
Subject: RE: [BackupScripts-L] Re: [Veritas-bu] number of tapes


> bplist lists all the files backedup for a specific backup or time period.
>
> -----Original Message-----
> From: Sen [mailto:discussion.groups AT gmx DOT net]
> Sent: quinta-feira, 8 de Maio de 2003 9:59
> To: Kennedy, Jeffrey
> Cc: netbackup-l; nbu-lserv; veritas-bu AT mailman.eng.auburn DOT edu
> Subject: [BackupScripts-L] Re: [Veritas-bu] number of tapes
>
>
> i am able to find the data size on the tape, but if there is a way to find
> the files that are backup on the tape will be good. anybody knows?
>
> ----- Original Message ----- 
> From: "Kennedy, Jeffrey" <jkennedy AT qualcomm DOT com>
> To: "Sen" <discussion.groups AT gmx DOT net>
> Sent: Wednesday, May 07, 2003 11:58 PM
> Subject: RE: [Veritas-bu] number of tapes
>
>
> Number of files I'm not sure, but data on tape you can use one of NBU's
> canned reports.  I don't remember which one exactly, but there are only 3
or
> 4 involving media.  Give them a try.
>
> ~JK
>
> > -----Original Message-----
> > From: Sen [mailto:discussion.groups AT gmx DOT net]
> > Sent: Wednesday, May 07, 2003 3:45 AM
> > To: Kennedy, Jeffrey
> > Subject: Re: [Veritas-bu] number of tapes
> >
> > how do i check the amount of data on a tape?
> > and am i able to list the files that are backup on a tape too?
> >
> > ----- Original Message -----
> > From: "Kennedy, Jeffrey" <jkennedy AT qualcomm DOT com>
> > To: "Sen" <discussion.groups AT gmx DOT net>
> > Sent: Wednesday, May 07, 2003 1:20 AM
> > Subject: RE: [Veritas-bu] number of tapes
> >
> >
> > It all depends on the type of data.  Since you said you're using DLT
> IV
> > tapes (40gb native, 80gb compressed) you should be able to get 150gb
> on
> > 4 tapes instead of 5.  However, if you're data is highly compressed
> > already (jpegs, mp3's, mpeg's, etc...) then you could have it take 5
> > tapes since hardware compression (the default on all DLT7k and above
> > drives) can actually make it worse on data of that type.
> >
> > Do you know how much is on the 5th tape?  You could be getting the
> short
> > end of the stick with only a few MB's left after tape #4.
> >
> > BTW, never do software compression if you can do hardware compression.
> > Hardware is much faster and easier on your server.
> >
> > ~JK
> >
> > > -----Original Message-----
> > > From: Sen [mailto:discussion.groups AT gmx DOT net]
> > > Sent: Tuesday, May 06, 2003 9:37 AM
> > > To: Prasad, Rajeev, NPONS
> > > Cc: veritas-bu AT mailman.eng.auburn DOT edu
> > > Subject: Re: [Veritas-bu] number of tapes
> > >
> > > but its taking 4 tapes to backup 150GB, is there anyway to reduce
> the
> > > number
> > > of tapes?
> > >
> > > ----- Original Message -----
> > > From: "Prasad, Rajeev, NPONS" <rajeevprasad AT att DOT com>
> > > To: "Sen" <discussion.groups AT gmx DOT net>
> > > Sent: Tuesday, May 06, 2003 11:29 PM
> > > Subject: RE: [Veritas-bu] number of tapes
> > >
> > >
> > > someone else on this list said, it could have reverse effects....
> > >
> > > -----Original Message-----
> > > From: Sen [mailto:discussion.groups AT gmx DOT net]
> > > Sent: Tuesday, May 06, 2003 10:16 AM
> > > To: Matt Moody; Paul Winkeler
> > > Cc: veritas-bu AT mailman.eng.auburn DOT edu
> > > Subject: Re: [Veritas-bu] number of tapes
> > >
> > >
> > > should i select software compression if the tape drive compression
> is
> > > already on?
> > >
> > > ----- Original Message -----
> > > From: "Matt Moody" <mattm AT m-c-s DOT com>
> > > To: "Sen" <discussion.groups AT gmx DOT net>; "Paul Winkeler"
> > > <pwinkeler AT pbnj-solutions DOT com>
> > > Cc: <veritas-bu AT mailman.eng.auburn DOT edu>
> > > Sent: Tuesday, May 06, 2003 2:09 AM
> > > Subject: RE: [Veritas-bu] number of tapes
> > >
> > >
> > > > You can select compression within the backup policy.  Just
> remember,
> > > this
> > > > will take additional CPU cycles on the client side and may not
> raise
> > > your
> > > > compression level any further than what the drive can do.  Your
> best
> > bet
> > > > would be to send the data to the tape drive as fast as possible
> and
> > > allow
> > > > the drive to compress it.  To determine if software compression
> will
> > > help,
> > > > create a directory with a set amount of data in it, back it up
> > without
> > > > software compression, then try again with it.
> > > >
> > > > Tuning is a crap-shoot in some cases....
> > > >
> > > > Matthew Moody
> > > > MCSI
> > > >
> > > > -----Original Message-----
> > > > From: veritas-bu-admin AT mailman.eng.auburn DOT edu
> > > > [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu]On Behalf Of Sen
> > > > Sent: Monday, May 05, 2003 10:21 AM
> > > > To: Paul Winkeler
> > > > Cc: veritas-bu AT mailman.eng.auburn DOT edu
> > > > Subject: Re: [Veritas-bu] number of tapes
> > > >
> > > >
> > > > how do i configure NBU to compress the data that it is going to
> > backup?
> > > >
> > > > ----- Original Message -----
> > > > From: "Paul Winkeler" <pwinkeler AT pbnj-solutions DOT com>
> > > > To: "'Sen'" <discussion.groups AT gmx DOT net>
> > > > Cc: <veritas-bu AT mailman.eng.auburn DOT edu>
> > > > Sent: Monday, May 05, 2003 7:21 PM
> > > > Subject: RE: [Veritas-bu] number of tapes
> > > >
> > > >
> > > > Sen
> > > >
> > > > You cannot set the ratio (wish that you could though!)  You can
> > control
> > > > compression on a yes/no basis by configuring your OS appropriately
> > but
> > > after
> > > > that compression is as good as the source data will let it be.
> > > >
> > > > Why would you not compress?
> > > >
> > > >  PaulW
> > > >
> > > > www.pbnj-solutions.com IT Solutions That Stick
> > > > (216) 533-5708
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: veritas-bu-admin AT mailman.eng.auburn DOT edu
> > > > > [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of
> Sen
> > > > > Sent: Monday, May 05, 2003 6:50 AM
> > > > > To: Matt Moody
> > > > > Cc: netbackup-l; nbu-lserv; veritas-bu AT mailman.eng.auburn DOT edu
> > > > > Subject: Re: [Veritas-bu] number of tapes
> > > > >
> > > > >
> > > > > how do i set the Compression ratio ??
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Matt Moody" <mattm AT m-c-s DOT com>
> > > > > To: "Sen" <discussion.groups AT gmx DOT net>
> > > > > Sent: Sunday, May 04, 2003 3:35 PM
> > > > > Subject: RE: [Veritas-bu] number of tapes
> > > > >
> > > > >
> > > > > > DLT8k drive assuming non-compressed will require 4 tapes for
> the
> > > > > > backup. Compressed 2:1 will require 2 tapes.
> > > > > >
> > > > > > ASCII data (text) is highly compressable whereas .pdf's and
> > > > > some image
> > > > > types
> > > > > > are not very compressable.  Assume 3 tapes, expect less
> > required.
> > > > > >
> > > > > > Matthew Moody
> > > > > > MCSI
> > > > > >
> > > > > > -----Original Message-----
> > > > > > From: veritas-bu-admin AT mailman.eng.auburn DOT edu
> > > > > > [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu]On Behalf Of
> Sen
> > > > > > Sent: Sunday, May 04, 2003 1:07 AM
> > > > > > To: Matt Moody; netbackup-l; nbu-lserv;
> > > > > > veritas-bu AT mailman.eng.auburn DOT edu
> > > > > > Subject: Re: [Veritas-bu] number of tapes
> > > > > >
> > > > > >
> > > > > > i am using DLT 40/80
> > > > > > how do i know the estimated data compression?
> > > > > > its a 1 time backup, keep for 1 month
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: "Matt Moody" <mattm AT m-c-s DOT com>
> > > > > > To: "Sen" <discussion.groups AT gmx DOT net>; "netbackup-l"
> > > > > > <netbackup-l AT yahoogroups DOT com>; "nbu-lserv"
> > > > > > <nbu-lserv AT dsihost-srv01 DOT com>;
> > <veritas-bu AT mailman.eng.auburn DOT edu>
> > > > > > Sent: Sunday, May 04, 2003 2:00 PM
> > > > > > Subject: RE: [Veritas-bu] number of tapes
> > > > > >
> > > > > >
> > > > > > > What tape drives will you be using?  How much estimated data
> > > > > compression?
> > > > > > > Are you talking a one-time backup or a backup rotation.  If
> > > > > > > rotation,
> > > > > how
> > > > > > > long will you be keeping the data?
> > > > > > >
> > > > > > > Matthew Moody
> > > > > > > MCSI
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > -----Original Message-----
> > > > > > > From: veritas-bu-admin AT mailman.eng.auburn DOT edu
> > > > > > > [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu]On Behalf 
> > > > > > > Of
> > Sen
> > > > > > > Sent: Saturday, May 03, 2003 11:34 PM
> > > > > > > To: netbackup-l; nbu-lserv;
> veritas-bu AT mailman.eng.auburn DOT edu
> > > > > > > Subject: [Veritas-bu] number of tapes
> > > > > > >
> > > > > > >
> > > > > > > Hi,
> > > > > > > how many backup tapes do you think is required for 150GB of
> > data?
> > > > > > >
> > > > > > > Thanks
> > > > > > >
> > > > > > > _______________________________________________
> > > > > > > Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> > > > > > > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
> > > > > > _______________________________________________
> > > > > > Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> > > > > > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > > >
> > > > > _______________________________________________
> > > > > Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> > > > > http://mailman.eng.auburn.edu/mailman/listinfo> /veritas-bu
> > > > >
> > > >
> > > >
> > > >
> > > > _______________________________________________
> > > > Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> > > > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> > > >
> > > > _______________________________________________
> > > > Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> > > > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> > > >
> > > >
> > >
> > >
> > > _______________________________________________
> > > Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> > > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> > >
> > >
> > >
> > > _______________________________________________
> > > Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> > > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> >
> >
>
>
>
> _______________________________________________
> NBU-LSERV AT datastaff DOT com - Advanced NetBackup Scripting Maillist
> http://dsihost-srv01.com/mailman/listinfo/nbu-lserv
> Check out the Advanced Scripting Website http://www.NetBackupCentral.com
>
>
>
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