[Veritas-bu] NBU Certification

2009-07-07 Thread Jenner, Steven
Hi All,

 I am thinking of taking the NBU certification exams 250-265 and 250-365.

I have experience of all versions of NetBackup from 3.4 to 6.5.3.1; however the 
majority of my time has been spent using NBU 4.5 and 5.1 (I completed the 
official VERITAS courses on those versions). I only upgraded to 6.5.3.1 three 
weeks ago and as such could do with a refresher regarding the new version.

Does anyone have any advice with regard to the exams other than the practise 
exam and details on the Symantec website?

I would also appreciate any study docs or websites that I could use to help me 
prepare.

Finally how useful do you think these certifications are?

Thanks in advance,
Steve.


Steven Jenner, NCDA
Senior Operations Engineer
Telstra International EMEA
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Re: [Veritas-bu] NBU Certification

2009-07-07 Thread Pedro Moranga Gonçalves
Hi Steven,

The exam is not difficult, if you are used with pre 6.0 versions, you should 
get a good look to the inter-process documentation, becouse it changed a lot 
from pre 6.x to 6x.



Good luck,

Pedro




From: veritas-bu-boun...@mailman.eng.auburn.edu 
[mailto:veritas-bu-boun...@mailman.eng.auburn.edu] On Behalf Of Jenner, Steven
Sent: terça-feira, 7 de julho de 2009 05:40
To: Veritas-bu@mailman.eng.auburn.edu
Subject: [Veritas-bu] NBU Certification

Hi All,

 I am thinking of taking the NBU certification exams 250-265 and 250-365.

I have experience of all versions of NetBackup from 3.4 to 6.5.3.1; however the 
majority of my time has been spent using NBU 4.5 and 5.1 (I completed the 
official VERITAS courses on those versions). I only upgraded to 6.5.3.1 three 
weeks ago and as such could do with a refresher regarding the new version.

Does anyone have any advice with regard to the exams other than the practise 
exam and details on the Symantec website?

I would also appreciate any study docs or websites that I could use to help me 
prepare.

Finally how useful do you think these certifications are?

Thanks in advance,
Steve.


Steven Jenner, NCDA
Senior Operations Engineer
Telstra International EMEA
DDI:+44 (0) 845 685 5644
Facsimile:+44 (0) 845 685 5646
Email:   
steven.jen...@intl.telstra.commailto:steven.jen...@intl.telstra.com
Web:  
www.telstra-international.co.ukhttp://www.telstra-international.co.uk
Give your feedback:  
www.telstrainternational.co.uk/surveyhttp://www.telstrainternational.co.uk/survey

Telstra International trades in the UK and EMEA through Telstra Limited, a 
company registered in England and Wales with company number 03830643. Our 
registered address is Telstra House, 21 Tabernacle Street, London EC2A 4DE.

This communication may contain confidential information.  It may also be the 
subject of legal professional privilege and/or under copyright. If you are not 
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[Veritas-bu] Synthetic Backups

2009-07-07 Thread tsimerson

Jim,

I've been testing it myself.  I think you do need to keep that full backup 
around.  The synthetic part of a synthetic backup is the consolidation of the 
full backup and the incrementals into a single image.  This is done via 
duplication.

The test scenario I'm working with is the following:
Full backup taken every 4 weeks and kept for 2 months
Incremental every night kept for 2 months
Synthetic full every week which is kept for 1 month (offsite retention only)

This seems to be working fine.  I see a full backup during in the backup 
image list for the test client.  I've not actually trying doing a restore of 
this full backup to see what tapes are loaded and how long it will take.


 I have a bit of an oddity.
 
 I'm testing Synthetic Backups.
 
 I have
 
 Day 1 Full backup. Day 2 Incremental
 Day 3 Synthetic-Full Day 4 Incremental (and manually expire the Day 1 Full) 
 Day 5 Full backup runs
 
 So it appears I need to keep the Full backup around even though the Synthetic 
 Full is suppose to be its equivalent.
 
 The Full backup runs on Day 5 even though I don't have it scheduled. In Fact 
 Full are manual. Synthetics are scheduled.
 
 Is this normal?
 
 Running 6.5.4 


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Re: [Veritas-bu] Using multiple drives with NDMP.

2009-07-07 Thread Jeff Cleverley

Boris,

When I was doing some testing earlier I could see in the logs that the 
buffer sizes were only changing when I modified the 
size_data_buffers_ndmp value.  If there is a way to set the size on the 
Celera I would guess that would work as well.  I haven't figured out how 
to set the MOVER_RECORD_SIZE on the NetApp.  I'm kind of hoping that the 
value being passed by Veritas using the size_data_buffers_ndmp value is 
setting it.


Thanks,

Jeff

sysadminz...@gmail.com wrote:

Hello Jeff,

I just have SIZE_DATA_BUFFERS on the netbackup media servers and the 
buffer size on our EMC Celerras set to 256k. I don't have 
SIZE_DATA_BUFFERS_NDMP set at all, and I can see quite good 
performance on my LTO3 tape drives, as I pointed out 75mg/s on the 
UNIX and 65mg/s on Windows.


Boris

On Jun 25, 2009 11:16am, Jeff Cleverley jeff.clever...@avagotech.com 
wrote:





 Boris,



 Just to clarify.  When you set the data buffers settings for the filer,
 were you changing the SIZE_DATA_BUFFERS_NDMP or was it something else? 
 I was unclear whether the ndmp buffer size was actually passing that
 size for the dump command to use for a block size. 




 Thanks,



 Jeff



 Boris Kraizman wrote:
 Jeff, good point. You need to tune the data buffer size as
 well. I changed the data buffer settings on the filer and the backup
 media servers to 256k, runs really fast in my case. I noted the Solaris
 media server runs backups faster then the Windows media servers.



 Boris



 On Fri, Jun 12, 2009 at 12:26 PM, Jeff
 Cleverley jeff.clever...@avagotech.com
 wrote:


 The clients max job was set
 to 1.  I changed it to 10 for now.  The
 policy with 3 file systems in the includes grabbed 3 drives and started
 writing.  Performance now needs to start getting tuned to see what we
 can get but at least I can use all the drives.



 Thanks,



 Jeff





 Jon Bousselot wrote:
 What do
 you have set for maximum jobs per client under the global attributes
 of the properties tab of the master server?



 by the CLI...



 Check it

 /usr/openv/netbackup/bin/admincmd/bpconfig -L



 Set it

 /usr/openv/netbackup/bin/admincmd/bpconfig -mj 4



 NDMP will multi-stream, but not multiplex.



 -Jon

 Greetings,



 I've got just about all the bugs worked out of the new test environment
 except 1.  I can get my NDMP policies to back up more than one file
 system at a time.



 I've got a 6.5.3 environment running on linux.  I've got a library
 (tld0) with 4 Gen 3 Ultrium drives.  I've defined a media manager
 storage unit because I'm doing remote NDMP.  I've set up 3 test
 policies, 1 standard and 2 NDMP.  All policies work fine one at a time,
 or either NDMP policy will run at the same time as the standard
 policy.  The storage unit is set to allow the use of 4 drives and also
 allow multiplexing (for the standard policy).  The policies vary on the
 number of jobs per policy.  One is set to 9 and the other is not set. 
 One NDMP policy has 3 file systems to back up and the other has 1.




 When I run the policy with 3 file systems, it only runs one at a time
 to one tape.  The other 2 just queue.  I've tried putting in the new
 stream directive between them in the includes file but it didn't help. 
 I can get them all to work one at a time but can't get them to backup

 more than one NDMP file system at a time.  Is there some bp.conf
 directive I need to create?

 Any help pointing down the correct path would be appreciated.



 Thanks,



 Jeff

 -- 




 Jeff Cleverley

 Unix Systems Administrator

 4380 Ziegler Road

 Fort Collins, Colorado 80525

 970-288-4611

 jeff.clever...@avagotech.com


  
 





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 Unix Systems Administrator
 4380 Ziegler Road
 Fort Collins, Colorado 80525
 970-288-4611
 jeff.clever...@avagotech.com









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 Unix Systems Administrator
 4380 Ziegler Road
 Fort Collins, Colorado 80525
 970-288-4611
 jeff.clever...@avagotech.com


 


--

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Unix Systems Administrator
4380 Ziegler Road
Fort Collins, Colorado 80525
970-288-4611
jeff.clever...@avagotech.com

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[Veritas-bu] Synthetic Backups

2009-07-07 Thread cpreston


 I've been testing it myself. I think you do need to keep that full backup 
 around. The synthetic part of a synthetic backup is the consolidation of 
 the full backup and the incrementals into a single image. This is done via 
 duplication. 


What makes it synthetic is that it is created tape to tape instead of 
transferring a bunch of non-changed data from the client again.  Once that new 
(synthetic) full is created, there is no need for previous fulls (other than 
for retention).  The new full DOES NOT rely on the old full once it's created.

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Re: [Veritas-bu] Synthetic Backups

2009-07-07 Thread Jim Horalek
Thanks all,

Though keeping the orginal full around(to create other synthetics) does seem
a bit strange. Hopefully Netbackup will mature to elimnate the constraint.

Jim

-Original Message-
From: veritas-bu-boun...@mailman.eng.auburn.edu
[mailto:veritas-bu-boun...@mailman.eng.auburn.edu] On Behalf Of cpreston
Sent: Tuesday, July 07, 2009 1:39 PM
To: VERITAS-BU@MAILMAN.ENG.AUBURN.EDU
Subject: [Veritas-bu] Synthetic Backups




 I've been testing it myself. I think you do need to keep that full 
 backup around. The synthetic part of a synthetic backup is the 
 consolidation of the full backup and the incrementals into a single 
 image. This is done via duplication.


What makes it synthetic is that it is created tape to tape instead of
transferring a bunch of non-changed data from the client again.  Once that
new (synthetic) full is created, there is no need for previous fulls (other
than for retention).  The new full DOES NOT rely on the old full once it's
created.

+--
|This was sent by wcplis...@gmail.com via Backup Central. Forward SPAM 
|to ab...@backupcentral.com.
+--


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[Veritas-bu] Revert Clustered Master Server to Stand Alone

2009-07-07 Thread Mase, Vince
Anyone have experience converting a clustered Master running 6.5 on
Windows back to a stand alone configuration?

 

Thanks

 

Vincent Mase

 



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Re: [Veritas-bu] Synthetic Backups

2009-07-07 Thread Dean
From what I've read, and from what Curtis says below, you DON'T need to keep
the original full backup around, once you've created at least one more
synethtic full backup. You can do just one full backup, then keep creating
synthetic fulls by merging the previous synthetic full with incrementals,
forever. The original full backup does not need to be retained as long is
there is always at least one unexpired synthetic full available.

Regards
Dean

On Wed, Jul 8, 2009 at 9:28 AM, Jim Horalek j...@federaledge.com wrote:

 Thanks all,

 Though keeping the orginal full around(to create other synthetics) does
 seem
 a bit strange. Hopefully Netbackup will mature to elimnate the constraint.

 Jim

 -Original Message-
 From: veritas-bu-boun...@mailman.eng.auburn.edu
 [mailto:veritas-bu-boun...@mailman.eng.auburn.edu] On Behalf Of cpreston
 Sent: Tuesday, July 07, 2009 1:39 PM
 To: VERITAS-BU@MAILMAN.ENG.AUBURN.EDU
 Subject: [Veritas-bu] Synthetic Backups




  I've been testing it myself. I think you do need to keep that full
  backup around. The synthetic part of a synthetic backup is the
  consolidation of the full backup and the incrementals into a single
  image. This is done via duplication.


 What makes it synthetic is that it is created tape to tape instead of
 transferring a bunch of non-changed data from the client again.  Once that
 new (synthetic) full is created, there is no need for previous fulls (other
 than for retention).  The new full DOES NOT rely on the old full once it's
 created.

 +--
 |This was sent by wcplis...@gmail.com via Backup Central. Forward SPAM
 |to ab...@backupcentral.com.
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Re: [Veritas-bu] Synthetic Backups

2009-07-07 Thread A Darren Dunham
On Wed, Jul 08, 2009 at 10:11:46AM +1000, Dean wrote:
 From what I've read, and from what Curtis says below, you DON'T need to keep
 the original full backup around, once you've created at least one more
 synethtic full backup. You can do just one full backup, then keep creating
 synthetic fulls by merging the previous synthetic full with incrementals,
 forever. The original full backup does not need to be retained as long is
 there is always at least one unexpired synthetic full available.

That is not what the admin guide says (I'm looking at Admin guide 1 for
UNIX NBU 6.5, page 128).  I had assumed this would be possible, but it
says a non-synthetic full must be used as the source.

Synthetic backup
A synthetic full or synthetic cumulative incremental backup is a
backup assembled from previous backups. The backups include one
previous, traditional full backup, and subsequent differential
backups and/or a cumulative incremental backup. (A traditional full
backup means a non-synthesized, full backup.) A client can then use
the synthesized backup to restore files and directories in the same
way that a client restores from a traditional backup.

-- 
Darren
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Re: [Veritas-bu] Synthetic Backups

2009-07-07 Thread Dean
I see what you mean. But I suspect that's just a poorly worded paragraph.

The diagram on page 200 of the Admin Guide (Vol 1, Windows version)
indicates the original full is not required ongoing.

I wish I could say for sure from experience, but I've never been able to get
synthetic backups working at all :(

Cheers,
Dean

On Wed, Jul 8, 2009 at 10:21 AM, A Darren Dunham ddun...@taos.com wrote:

 On Wed, Jul 08, 2009 at 10:11:46AM +1000, Dean wrote:
  From what I've read, and from what Curtis says below, you DON'T need to
 keep
  the original full backup around, once you've created at least one more
  synethtic full backup. You can do just one full backup, then keep
 creating
  synthetic fulls by merging the previous synthetic full with incrementals,
  forever. The original full backup does not need to be retained as long is
  there is always at least one unexpired synthetic full available.

 That is not what the admin guide says (I'm looking at Admin guide 1 for
 UNIX NBU 6.5, page 128).  I had assumed this would be possible, but it
 says a non-synthetic full must be used as the source.

 Synthetic backup
A synthetic full or synthetic cumulative incremental backup is a
backup assembled from previous backups. The backups include one
previous, traditional full backup, and subsequent differential
backups and/or a cumulative incremental backup. (A traditional full
backup means a non-synthesized, full backup.) A client can then use
the synthesized backup to restore files and directories in the same
way that a client restores from a traditional backup.

 --
 Darren
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[Veritas-bu] Synthetic Backups

2009-07-07 Thread Crowey

Gidday, I've been running synthetics for nearly two years now to backup about 
3/3.5 TBs and have to say has generally run extremely well.

Within the same policy I have 3 schedules.

The first is an ad-hoc full - I used this to create the first full backup, and 
on the very few occasions when the synthetic has stuffed up and I needed to 
start again.  It has a 1 month retention.

Second is a daily differential that runs every three hours and goes to disc.  
They have a two week retention period.

Lastly, I have the synthetic full backup.  Runs every saturday and also has a 1 
month retention.

Like I said, it occasionaly stuffs up, but works 99% of the time, and appears 
to run 3 to 4 times faster than a traditional full.

I HIGHLY recommend it.

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Re: [Veritas-bu] Synthetic Backups Or May A Red Herring.

2009-07-07 Thread Jim Horalek (Federal Edge)
Unfortunately my test showed you do.(or do they?). I'm to understand why 
expiring the full backup triggered another full backup (not synthetic). There 
maybe an obsure reason that my test failed or it may be a bug.

Maybe the Full backup running has nothing to do with the synthetics but is 
actually a scheduling or retension issue. Since all my Fulls are manual this 
is a bit perplexing as to why a Full ran automatically.

Something to do with running a manual backup and the system thinks it hasn't 
run since the image was expired?


jim




From: Dean 
Sent: Tuesday, July 07, 2009 5:11 PM
To: Jim Horalek 
Cc: VERITAS-BU@mailman.eng.auburn.edu 
Subject: Re: [Veritas-bu] Synthetic Backups


From what I've read, and from what Curtis says below, you DON'T need to keep 
the original full backup around, once you've created at least one more 
synethtic full backup. You can do just one full backup, then keep creating 
synthetic fulls by merging the previous synthetic full with incrementals, 
forever. The original full backup does not need to be retained as long is 
there is always at least one unexpired synthetic full available.

Regards
Dean


On Wed, Jul 8, 2009 at 9:28 AM, Jim Horalek j...@federaledge.com wrote:

  Thanks all,

  Though keeping the orginal full around(to create other synthetics) does seem
  a bit strange. Hopefully Netbackup will mature to elimnate the constraint.

  Jim


  -Original Message-
  From: veritas-bu-boun...@mailman.eng.auburn.edu
  [mailto:veritas-bu-boun...@mailman.eng.auburn.edu] On Behalf Of cpreston
  Sent: Tuesday, July 07, 2009 1:39 PM
  To: VERITAS-BU@MAILMAN.ENG.AUBURN.EDU
  Subject: [Veritas-bu] Synthetic Backups




   I've been testing it myself. I think you do need to keep that full
   backup around. The synthetic part of a synthetic backup is the
   consolidation of the full backup and the incrementals into a single
   image. This is done via duplication.


  What makes it synthetic is that it is created tape to tape instead of
  transferring a bunch of non-changed data from the client again.  Once that
  new (synthetic) full is created, there is no need for previous fulls (other
  than for retention).  The new full DOES NOT rely on the old full once it's
  created.

  +--
  |This was sent by wcplis...@gmail.com via Backup Central. Forward SPAM
  |to ab...@backupcentral.com.
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Re: [Veritas-bu] Synthetic Backups

2009-07-07 Thread W. Curtis Preston
And you're verifying that the original full does not need to be kept around?

-Original Message-
From: veritas-bu-boun...@mailman.eng.auburn.edu
[mailto:veritas-bu-boun...@mailman.eng.auburn.edu] On Behalf Of Crowey
Sent: Tuesday, July 07, 2009 5:55 PM
To: VERITAS-BU@MAILMAN.ENG.AUBURN.EDU
Subject: [Veritas-bu] Synthetic Backups


Gidday, I've been running synthetics for nearly two years now to backup
about 3/3.5 TBs and have to say has generally run extremely well.

Within the same policy I have 3 schedules.

The first is an ad-hoc full - I used this to create the first full backup,
and on the very few occasions when the synthetic has stuffed up and I needed
to start again.  It has a 1 month retention.

Second is a daily differential that runs every three hours and goes to disc.
They have a two week retention period.

Lastly, I have the synthetic full backup.  Runs every saturday and also has
a 1 month retention.

Like I said, it occasionaly stuffs up, but works 99% of the time, and
appears to run 3 to 4 times faster than a traditional full.

I HIGHLY recommend it.

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|Forward SPAM to ab...@backupcentral.com.
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[Veritas-bu] Synthetic Backups

2009-07-07 Thread Crowey


cpreston wrote:
 And you're verifying that the original full does not need to be kept around?
 


OK ... I missed two important points I guess.  With a 1 month retention period, 
I always have 4 (weekly) synthetic backups in my library, and so yes I've never 
had any problem about recovering files very quickly that were/are less than one 
month old.

However, we do also have another separate policy that duplicates the most 
recent synthetic copy to another set of tapes for our EOM set.

And, again, I've restored from our EOM tapes (from various months/years) more 
than enough times to know that the process works just fine.

And I do know for sure that we do not keep an initial full backup - it expires 
(after one month) like any other backup.  Its the seed for the initial 
synthetic, but then its no longer required - moreover, its no longer useful (in 
the synthetic backup process) if you don't have differentials that date back to 
the creation of that 'seed' full backup.

Is that clearer? Anything else that I missed?

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