I have also been looking at this as an option.
One of the considerations is the effect encryption has on compression.
I have heard you loose the ability to compress effectively when using
compression.
Have you noticed an effect on your tape drive compression when using
tape drive based
I was recently informed that someone I work with has had files stored on
our file server that should not have been there. They have since
deleted the original files, but the copies that are stored in the NBU
images are still on our backup server. Is it possible to delete
individual files from an
Tal,
I can only speak of the IBM LTO4 tape drives, I assume the others are the same.
IBM says that each block of data to be written to the tape is compressed or not
then encrypted. They do not compress blocks that would grow if compressed.
Regards len
-Original Message-
From:
On Tue, Mar 2, 2010 at 7:44 AM, McDonald II, James F.
james.f.mcdonald...@saic.com wrote:
I was recently informed that someone I work with has had files stored on
our file server that should not have been there. They have since deleted
the original files, but the copies that are stored in
I am now using kms, and because the tape drive does the compression and
the tape drive does the encryption, I have not noticed any loss in
compression yet ( only have had it running for about 1 week) that was
something I was also concerned about. You have to compress before you
encrypt, and as
On Tue, 2 Mar 2010, Shekel Tal wrote:
I have also been looking at this as an option.
One of the considerations is the effect encryption has on compression.
I have heard you loose the ability to compress effectively when using
compression.
Have you noticed an effect on your tape drive
Okay, thanks for the information.
I have also been looking at NetBackup Media Server Encryption.
It looks quite neat, compresses before encryption and has very nice key
management which is a big tick in the box for me.
The only caveat is that is software based and has fairly heavy host CPU
Well that looks pretty good
Not sure if you are comfortable sharing info like this but what kind of
data does that represent?
Normal User File data?
Database data?
Media Files?
-Original Message-
From: Justin Piszcz [mailto:jpis...@lucidpixels.com]
Sent: 02 March 2010 14:49
To: Shekel
Sorry, I just noticed now the one data set is encrypted and the other is
not.
Quite a noticeable difference
-Original Message-
From: Justin Piszcz [mailto:jpis...@lucidpixels.com]
Sent: 02 March 2010 14:49
To: Shekel Tal
Cc: Kevin C; veritas-bu@mailman.eng.auburn.edu
Subject: RE:
Hi,
A mixture of DB/FS data.
Justin.
On Tue, 2 Mar 2010, Shekel Tal wrote:
Well that looks pretty good
Not sure if you are comfortable sharing info like this but what kind of
data does that represent?
Normal User File data?
Database data?
Media Files?
-Original Message-
Hi,
I have read others' reviews on MSEO-- from what I understand it will peg
the CPU and reduce throughput dramatically to high-speed drives.
Has anyone not seen that?
Justin.
On Tue, 2 Mar 2010, Shekel Tal wrote:
Okay, thanks for the information.
I have also been looking at NetBackup
Thanks Len
Did you see Justin's stats?
They seem to show quite a difference between using encryption and not
while using IBM LTO4
Regards,
Tal
IBM LTO-4 ENCRYPTED (RATIO = ~1.5:1)
ABCD25 3 67 02/17/2010 20:00 02/23/2010 00:00 hcart
1188618163 0
MPX 03/26/2010
Thanks for the info Justin
Definitely would like to test in our environment and compare . . . very
interesting
-Original Message-
From: Justin Piszcz [mailto:jpis...@lucidpixels.com]
Sent: 02 March 2010 14:56
To: Shekel Tal
Cc: Kevin C; veritas-bu@mailman.eng.auburn.edu
Subject: RE:
Thanks why I went for kms (tape drive encryption) no overhead on the
media server or the clients
-Original Message-
From: Justin Piszcz [mailto:jpis...@lucidpixels.com]
Sent: Tuesday, March 02, 2010 8:57 AM
To: Shekel Tal
Cc: Judy Hinchcliffe; kc.on.the@gmail.com;
From the research I have done on the CPU requirements:
It takes roughly 73 clock cycles on a Windows or Linux server or about
87 clock cycles on UNIX server to perform MSEO compression/encryption
per BYTE of data backed up. Backing up 100 MB/sec of data through a
Solaris media server requires 8.7
Again, that is why I went with KMS, (kms is NOT MESO) it is application
managed encryption that tells the tape drive to do the encryption NOT
the media server, kms just has the keys on the master server and NB
talks to the tape drive with the keys. Again so the tape drive does the
encryption with
It seems that my tapeloader (Dell Powervault 124T) has become
disconnected from my backup server. I deleted it from NBU and
re-configured it using the Wizard, but I still get failures when try to
manually start a tape backup. I checked the back of the server and
there is an amber light on the
Hi,
What does /usr/openv/volmgr/bin/robtest say?
Justin.
On Tue, 2 Mar 2010, McDonald II, James F. wrote:
It seems that my tapeloader (Dell Powervault 124T) has become
disconnected from my backup server. I deleted it from NBU and
re-configured it using the Wizard, but I still get failures
You could also try this command to check the Robot connectivity.
cfgadm -al
Thanks,
Saran
Date: Tue, 2 Mar 2010 15:24:41 -0500
From: jpis...@lucidpixels.com
To: james.f.mcdonald...@saic.com
CC: veritas-bu@mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] Tape Loader Not
Hello,
I am getting following error when try to start backup exec services on BE 10d.
=
Error starting the service backup exec job engine.
The dependency service or group failed to start.
Thanks a ton!!
I did that and so far faced no issues.
The thing is i am not starting backups on both BE and Netbackup as both use
same ports for backups.
Rest all is well.
Thanks and Regards
Pranav Batra
Subject: RE: [Veritas-bu] (no subject)
Date: Mon, 1 Mar
On Mar 2, 2010, at 10:26, Shekel Tal wrote:
It takes roughly 73 clock cycles on a Windows or Linux server or about
87 clock cycles on UNIX server to perform MSEO compression/encryption
per BYTE of data backed up. Backing up 100 MB/sec of data through a
Solaris media server requires 8.7 GHz of
Hi Pranav,
Can you use the subject line?
Also, this is the NetBackup list, not the BackupExec list.
I would check whats up with the dependent services. The BE service is not
starting due to one of its dependencies. That is where you should look.
Why is the dependency not started.
Hello,
Hi Pranav,
Can you use the subject line?
Also, this is the NetBackup list, not the BackupExec list.
I would check whats up with the dependent services. The BE service is not
starting due to one of its dependencies. That is where you should look.
Why is the dependency not started.
Hello,
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