You can use bpimagelist or bpimmedia to determine how much data was
written to a particular tape.
___________________________________
Remedy information:
Group: "National EBR Ops"
Scope: Backend Applications
Category: NetBackup
http://wa-gsmrdb02-bth/ESBR/
http://netbackup.entp.attws.com/cgi-bin/backup_amount
http://netbackup/prod/netbackup_REQ_form.xlt
__________________________________________
Jonathan Marianu (mah ree ah' nu)
National Enterprise Backup & Recovery
Cingular Wireless
(360) 597-6896
Manager: John Menzik
(425) 288-8690
-----Original Message-----
From: veritas-bu-bounces at mailman.eng.auburn.edu
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veritas-bu-request at mailman.eng.auburn.edu
Sent: Wednesday, November 01, 2006 8:32 AM
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Subject: Veritas-bu Digest, Vol 7, Issue 2
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When replying, please edit your Subject line so it is more specific than
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Today's Topics:
1. Re: Determine efficiency of tape usage. (WEAVER, Simon)
2. Re: Weard one (Martin, Jonathan (Contractor))
3. Re: Weard one (WEAVER, Simon)
4. Re: Determine efficiency of tape usage. (Austin Murphy)
5. Re: Weard one (Paul Keating)
6. Re: Determine efficiency of tape usage. (bob944)
7. Re: Weard one (Matthew Johnson)
----------------------------------------------------------------------
Message: 1
Date: Wed, 1 Nov 2006 06:33:11 -0000
From: "WEAVER, Simon" <simon.weaver at astrium.eads.net>
Subject: Re: [Veritas-bu] Determine efficiency of tape usage.
To: "'Paul Keating'" <pkeating at bank-banque-canada.ca>,
veritas-bu at mailman.eng.auburn.edu
Message-ID:
<06F68E0112FAD611839400508BAF1B3309195644 at mms12032.pth.uk.astrium.corp>
Content-Type: text/plain; charset="iso-8859-1"
Agree with comments here with Paul. As I mentioned, most of this relies
on the type of Data you as a business are backing up.
And its not likely the business is going to want to change the way they
create their Data.
If you get 400GB on a tape, you should be happy; I have seen around
600MB crammed on a tape, but like a pint of beer, if you leave the tap
running, you need another glass to fill it.
And I will gladly drink it :-)
Regards
Simon Weaver
3rd Line Technical Support
Windows Domain Administrator
EADS Astrium Limited, B23AA IM (DCS)
Anchorage Road, Portsmouth, PO3 5PU
Email: <mailto:Simon.Weaver at Astrium-eads.net>
Simon.Weaver at Astrium-eads.net
-----Original Message-----
From: Paul Keating [mailto:pkeating at bank-banque-canada.ca]
Sent: 31 October 2006 19:22
To: veritas-bu at mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] Determine efficiency of tape usage.
Not to be pedantic, but you're getting as much data on the tape as the
tape can hold. :o\
It's a 400GB tape, so it will hold 400GB of data, which may translate as
800GB of highly compressable data......how compressed your data starts
out is dependant on the type of data......
ie, lots of plain ASCII text files and you might be able to compress
800GB onto the 400GB tape, but images, music, dense DBs, etc, you might
only get 450GB on a tape.....either way, "getting your money's worth" is
kind of an odd perspective.
If you're paying more for larger capacity tapes, you're paying for the
native capacity. The compressability of your data isn't determining
value.
If you're looking at value in a Gigs/Dollar perspective, you may or may
not want the larger tapes, you may want LTO1 or 2. I haven't looked at
costs lately.
The value in larger capacity tapes is in the overhead....less media to
manage, smaller library footprint, etc, etc.
The TCO is lower, even if the Gigs/Dollar ratio isn't the highest.
Your data is your data....You typically can't change that.
I'd imagine your company isn't going to change their Line of Business so
they have more compressable data to backup. :o)
Sorry if this provided no help at all, as far as answering your
question, but I suppose it's food for thought.
Paul
--
-----Original Message-----
From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Sixbury,
Dan
Sent: October 31, 2006 2:07 PM
To: veritas-bu at mailman.eng.auburn.edu
Subject: [Veritas-bu] Determine efficiency of tape usage.
How do you determine the efficiency of your tape usage? i.e. I was just
asked recently about our use of LTO3 tapes since they can hold up to 800
GB compressed, how much we were actually consuming. i.e. if we are
getting our money's worth for the larger capacity more expensive tapes.
Thanks
Dan
========================================================================
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------------------------------------------------------------------------
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Message: 2
Date: Wed, 1 Nov 2006 08:50:35 -0500
From: "Martin, Jonathan \(Contractor\)" <JMARTI05 at intersil.com>
Subject: Re: [Veritas-bu] Weard one
To: "Matthew Johnson" <mjohnson at entertainmentpartners.com>, "NB List
Mail" <veritas-bu at mailman.eng.auburn.edu>
Message-ID:
<13E204E614D8E04FAF594C9AA9ED0BB7046A37A1 at PBCOMX02.intersil.corp>
Content-Type: text/plain; charset="us-ascii"
Have you checked your storage units? Are both policies set to write to
the same storage unit, and thus to the same drive (assuming this is how
you are configured?) Are both backups of the same server. I've had
mixed results trying to run multiple policies on the same server at the
same time. If you fire off policy #2 (the one not running now) and then
Policy #1 does the same issue occur?
-Jonathan
________________________________
From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Matthew
Johnson
Sent: Tuesday, October 31, 2006 4:30 PM
To: NB List Mail
Subject: [Veritas-bu] Weard one
Hello all,
I have a weird one I have two separate policies that start at the same
time with 4 available drives. One starts writing and the other stays
queued.
They are both windows systems running through a windows media server
with a Sun Solaris master. I am running NetBackup 5.1 mp5
TIA
Matt
Matthew Johnson
Entertainment Partners
Backup Administrator
Work - 818-955-6357
Cell - 805-914-4791
Disclaimer - October 31, 2006
This email and any attachments are confidential and intended solely for
NB List Mail. If you are not a named addressee you are prohibited from
reviewing, printing, disseminating, distributing, copying or altering
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Partners does not accept responsibility for any loss or damage arising
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Message: 3
Date: Wed, 1 Nov 2006 14:33:54 -0000
From: "WEAVER, Simon" <simon.weaver at astrium.eads.net>
Subject: Re: [Veritas-bu] Weard one
To: "'Martin, Jonathan (Contractor)'" <JMARTI05 at intersil.com>, Matthew
Johnson <mjohnson at entertainmentpartners.com>, NB List Mail
<veritas-bu at mailman.eng.auburn.edu>
Message-ID:
<06F68E0112FAD611839400508BAF1B330919565E at mms12032.pth.uk.astrium.corp>
Content-Type: text/plain; charset="us-ascii"
Have you set the max jobs to 99 for the master server ? Host properties
of the master :-)
Regards
Simon Weaver
3rd Line Technical Support
Windows Domain Administrator
EADS Astrium Limited, B23AA IM (DCS)
Anchorage Road, Portsmouth, PO3 5PU
Email: <mailto:Simon.Weaver at Astrium-eads.net>
Simon.Weaver at Astrium-eads.net
-----Original Message-----
From: Martin, Jonathan (Contractor) [mailto:JMARTI05 at intersil.com]
Sent: 01 November 2006 13:51
To: Matthew Johnson; NB List Mail
Subject: Re: [Veritas-bu] Weard one
Have you checked your storage units? Are both policies set to write to
the
same storage unit, and thus to the same drive (assuming this is how you
are
configured?) Are both backups of the same server. I've had mixed
results
trying to run multiple policies on the same server at the same time. If
you
fire off policy #2 (the one not running now) and then Policy #1 does the
same issue occur?
-Jonathan
_____
From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Matthew
Johnson
Sent: Tuesday, October 31, 2006 4:30 PM
To: NB List Mail
Subject: [Veritas-bu] Weard one
Hello all,
I have a weird one I have two separate policies that start at the same
time
with 4 available drives. One starts writing and the other stays queued.
They are both windows systems running through a windows media server
with a
Sun Solaris master. I am running NetBackup 5.1 mp5
TIA
Matt
Matthew Johnson
Entertainment Partners
Backup Administrator
Work - 818-955-6357
Cell - 805-914-4791
Disclaimer - October 31, 2006
This email and any attachments are confidential and intended solely for
NB
List Mail. If you are not a named addressee you are prohibited from
reviewing, printing, disseminating, distributing, copying or altering
this
email or any part of it. If you have received this communication in
error,
please notify the sender of the error immediately, do not read or use
the
communication in any manner, destroy all copies, and delete it from your
system if the communication was sent via email. Warning: Although
Entertainment Partners has taken reasonable precautions to ensure no
viruses
are present in this email, the recipient is responsible for checking for
and
deleting viruses. Entertainment Partners does not accept responsibility
for
any loss or damage arising from the use of this email or attachments.
This email (including any attachments) may contain confidential and/or
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delete this message and any attachments from your system. Astrium
disclaims any and all liability if this email transmission was virus
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---------------------------------------------------------------------
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Registered Office: Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2AS,
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Message: 4
Date: Wed, 1 Nov 2006 09:35:15 -0500
From: "Austin Murphy" <austin.murphy at gmail.com>
Subject: Re: [Veritas-bu] Determine efficiency of tape usage.
To: "Sixbury, Dan" <dsixbury at hrblock.com>
Cc: veritas-bu at mailman.eng.auburn.edu
Message-ID:
<c9fff09c0611010635s4807e1eagd6d12cd68586e0a3 at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 10/31/06, Sixbury, Dan <dsixbury at hrblock.com> wrote:
> How do you determine the efficiency of your tape usage?
The GB used per tape shows up on the Vault reports if you use
vaulting. It is easy enough to do the math once you have the numbers.
I don't know of any particular NetBackup function that shows usage by
% or any other efficiency type numbers.
> ... i.e. I was just
> asked recently about our use of LTO3 tapes since they can hold up to
800 GB
> compressed, how much we were actually consuming. i.e. if we are
getting our
> money's worth for the larger capacity more expensive tapes.
A big source of tape waste comes from using too many volume pools. In
many cases there is no legitimate reason to have separate volume
pools.
Too many media servers is a similar problem since each media server
pulls it's own tapes. If a SAN media server has small incremental
backups, you may prefer to send those over the network to a more
active media server instead of writing directly to tape.
Another source of tape waste come from having too many tape drives
active at once. Forget compression for a second. Lets say you have
900 GB you are backing up and 2 LTO-3 tape drives in a library. If
you have both drives active and they both start at the same time, you
are likely to use 4 tapes (each with a max of 400GB) to backup the
900 GB. That is because when the two drives finish writing their
first 400 GB each, they both pull a new empty tape and start writing
to it. If you had only one drive active, it would take longer but
only use 3 tapes. Compression changes the numbers a bit, but not the
problem.
Austin
------------------------------
Message: 5
Date: Wed, 1 Nov 2006 09:50:25 -0500
From: "Paul Keating" <pkeating at bank-banque-canada.ca>
Subject: Re: [Veritas-bu] Weard one
To: <veritas-bu at mailman.eng.auburn.edu>
Message-ID:
<4A14D0A1A982B04B8DFC50EBDB81D0A204BEDEA1 at BOC-EXMAIL1.bocad.bank-banque-
canada.ca>
Content-Type: text/plain; charset="utf-8"
I've had a similar oddity only recently.
I have 2 drives connected to my Netapp filer, and when I launch the 2
policies, with 2 and 4 paths, respectively, only 1 job runs, the other 5
queue, using only one drive, even though the max jobs per client is
something like 8, and the STU is configured to have 2 drives.
In your case, how many jobs are in each policy? are all the jobs from
one policy running using all 4 drives? and ALL jobs in the other policy
queuing? Do you have one policy set with higher priority?
Paul
--
-----Original Message-----
From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Matthew
Johnson
Sent: October 31, 2006 4:30 PM
To: NB List Mail
Subject: [Veritas-bu] Weard one
Hello all,
I have a weird one I have two separate policies that start at
the same time with 4 available drives. One starts writing and the other
stays queued.
They are both windows systems running through a windows media
server with a Sun Solaris master. I am running NetBackup 5.1 mp5
TIA
Matt
Matthew Johnson
Entertainment Partners
Backup Administrator
Work - 818-955-6357
Cell - 805-914-4791
Disclaimer - October 31, 2006
This email and any attachments are confidential and intended
solely for NB List Mail. If you are not a named addressee you are
prohibited from reviewing, printing, disseminating, distributing,
copying or altering this email or any part of it. If you have received
this communication in error, please notify the sender of the error
immediately, do not read or use the communication in any manner, destroy
all copies, and delete it from your system if the communication was sent
via email. Warning: Although Entertainment Partners has taken reasonable
precautions to ensure no viruses are present in this email, the
recipient is responsible for checking for and deleting viruses.
Entertainment Partners does not accept responsibility for any loss or
damage arising from the use of this email or attachments.
========================================================================
============
La version fran?aise suit le texte anglais.
------------------------------------------------------------------------
------------
This email may contain privileged and/or confidential information, and
the Bank of
Canada does not waive any related rights. Any distribution, use, or
copying of this
email or the information it contains by other than the intended
recipient is
unauthorized. If you received this email in error please delete it
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your system and notify the sender promptly by email that you have done
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La Banque du Canada ne renonce pas aux droits qui s'y rapportent. Toute
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Message: 6
Date: Wed, 1 Nov 2006 10:37:28 -0500
From: "bob944" <bob944 at attglobal.net>
Subject: Re: [Veritas-bu] Determine efficiency of tape usage.
To: <veritas-bu at mailman.eng.auburn.edu>, "'Sixbury, Dan'"
<dsixbury at hrblock.com>
Message-ID: <004f01c6fdcb$a6a46d60$733515ac at enterprise.veritas.com>
Content-Type: text/plain; charset="us-ascii"
> How do you determine the efficiency of your tape usage? i.e.
> I was just
> asked recently about our use of LTO3 tapes since they can
> hold up to 800
> GB compressed, how much we were actually consuming. i.e. if we are
> getting our money's worth for the larger capacity more
> expensive tapes.
Since we're all guessing what you meant, you might want to say what
underlying issue you're trying to address so replies can address that.
Here's my guess:
If you have configured lots of pools, lots of retentions, lots of
libraries, lots of media servers, multiple streams, multiplexed and
non-multiplexed and lots of drives, you have decided to accept a ton of
partly filled tapes at any time. And if you vault originals, you make
it that much worse. Potentially, you can have one backup on each tape,
on- and off-site--so you might as well use old DDS drives rather than
have a gig on each of your big LTO tapes.
There are reasons you might want to do each of the things listed, but
generally not good ones.
For my money, the best way to see and show the situation is to run
available_media. I do a lot of analysis on that to generate various
metrics, but the report all by itself will tell you what (I think) you
want to know.
------------------------------
Message: 7
Date: Wed, 1 Nov 2006 08:31:19 -0800
From: "Matthew Johnson" <mjohnson at entertainmentpartners.com>
Subject: Re: [Veritas-bu] Weard one
To: "WEAVER, Simon" <simon.weaver at astrium.eads.net>, "Martin,
Jonathan
\(Contractor\)" <JMARTI05 at intersil.com>, "NB List Mail"
<veritas-bu at mailman.eng.auburn.edu>
Message-ID:
<B0600105C044524085CAEA1222A31A5601BA9A8B at CSPXCHV1.ep.corp>
Content-Type: text/plain; charset="us-ascii"
As usual thanks all for the quick responses this is a great group to
belong to. As for the storage unit question it sees all 4 drives. I set
the max jobs from 1 to 99 on the master server this was how it was
before I had problems a week ago some how got reset. I will try this and
see what happens. I will recheck all of my settings one more time.
Thanks
Matthew Johnson
Entertainment Partners
Backup Administrator
Work - 818-955-6357
Cell - 805-914-4791
________________________________
From: WEAVER, Simon [mailto:simon.weaver at astrium.eads.net]
Sent: Wednesday, November 01, 2006 6:34 AM
To: 'Martin, Jonathan (Contractor)'; Matthew Johnson; NB List Mail
Subject: RE: [Veritas-bu] Weard one
Have you set the max jobs to 99 for the master server ? Host properties
of the master :-)
Regards
Simon Weaver
3rd Line Technical Support
Windows Domain Administrator
EADS Astrium Limited, B23AA IM (DCS)
Anchorage Road, Portsmouth, PO3 5PU
Email: Simon.Weaver at Astrium-eads.net
<mailto:Simon.Weaver at Astrium-eads.net>
-----Original Message-----
From: Martin, Jonathan (Contractor)
[mailto:JMARTI05 at intersil.com]
Sent: 01 November 2006 13:51
To: Matthew Johnson; NB List Mail
Subject: Re: [Veritas-bu] Weard one
Have you checked your storage units? Are both policies set to
write to the same storage unit, and thus to the same drive (assuming
this is how you are configured?) Are both backups of the same server.
I've had mixed results trying to run multiple policies on the same
server at the same time. If you fire off policy #2 (the one not running
now) and then Policy #1 does the same issue occur?
-Jonathan
________________________________
From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Matthew
Johnson
Sent: Tuesday, October 31, 2006 4:30 PM
To: NB List Mail
Subject: [Veritas-bu] Weard one
Hello all,
I have a weird one I have two separate policies that start at
the same time with 4 available drives. One starts writing and the other
stays queued.
They are both windows systems running through a windows media
server with a Sun Solaris master. I am running NetBackup 5.1 mp5
TIA
Matt
Matthew Johnson
Entertainment Partners
Backup Administrator
Work - 818-955-6357
Cell - 805-914-4791
Disclaimer - October 31, 2006
This email and any attachments are confidential and intended
solely for NB List Mail. If you are not a named addressee you are
prohibited from reviewing, printing, disseminating, distributing,
copying or altering this email or any part of it. If you have received
this communication in error, please notify the sender of the error
immediately, do not read or use the communication in any manner, destroy
all copies, and delete it from your system if the communication was sent
via email. Warning: Although Entertainment Partners has taken reasonable
precautions to ensure no viruses are present in this email, the
recipient is responsible for checking for and deleting viruses.
Entertainment Partners does not accept responsibility for any loss or
damage arising from the use of this email or attachments.
This email (including any attachments) may contain confidential and/or
privileged information or information otherwise protected from
disclosure. If you are not the intended recipient, please notify the
sender immediately, do not copy this message or any attachments and do
not use it for any purpose or disclose its content to any person, but
delete this message and any attachments from your system. Astrium
disclaims any and all liability if this email transmission was virus
corrupted, altered or falsified.
---------------------------------------------------------------------
Astrium Limited, Registered in England and Wales No. 2449259
Registered Office: Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2AS,
England
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