[Veritas-bu] Device Strategy

2008-07-04 Thread Esson, Paul
Folks,

 

Could I ask the group for opinions on my device configuration strategy?


 

We have built a new 6.5.2 backup domain with a Solaris 10 Master
(clustered over two nodes using VCS) plus 4 x Solaris 10 Media Servers
and 2 x Windows Server 2003 Media Servers.

We also have 2 x Scalar i2000 tape libraries and 2 x EMC disk libraries.
Our intention is to share the 6 x LTO-4 drives from each tape library
across the Master and all Media Servers.  With the disk libraries we
have configured 2 x VTL on each disk library with 32 drives that is 4 x
32 = 128 drives.  The drives from each VTL have been distributed equally
amongst the four Solaris Media Servers only such that each has 8 x
drives from each of the four VTLs.

 

The reason for putting the robotic control on the cluster was to keep it
highly available such that if we lost a Media Server then we would not
have to reconfigure the robotic control onto another Media Server.
However, we have discovered that we can't seem to get the wizard to
configure the VTLs and their drives correctly.  At the moment, unless
the robotic control is on a Media Server that has drives from that VTL
associated all drives are configured with limitations such as unable to
determine robot type, robot drive number is unknown, etc.

 

Even on the Media Server with the robotic control the wizard will
correctly configure only the drives directly presented to that host, the
other Media Servers get drives configured with limitations too.  On the
face of it to get this working correctly we would have to assign a VTL
and all associated drives to each Media Server exclusively, but we
really need to be able to distribute the drives.

 

We are going to try a manual configuration today and bypass the wizard.

 

Has anybody got hosts with robotic control only for a library?  Should
this work?  But then again as I said above, even with robotic control
for a VTL on a Media Server with drives, there are still configuration
issues for the other Media Servers that share that VTL but with
dedicated drives.

 

Regards,

 

Paul Esson 
Redstor Limited 

Direct:   +44 (0) 1224 595381 
Mobile:  +44 (0) 7766 906514 
E-Mail:  [EMAIL PROTECTED] 
Web:www.redstor.com 

REDSTOR LIMITED 
Torridon House 
73-75 Regent Quay 
Aberdeen 
UK 
AB11 5AR 

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[Veritas-bu] Win XP client Deduplication

2008-07-04 Thread Karl Rossing
I have 75 windows client that I would like to backup over the wan. I 
can't use DLO since we don't have a Windows Domain. I would like to do 
client deduplication.

I have a few questions in order to verify what I understand.

Is there some deduplication built into NB 6.5.2/6.5.3 Win XP client?

If I have to purchase PureDisk 6.5, I have further questions.
1) If a client has two files with the same data, do both files get sent 
to the Netbackup Server?
2) If I have two clients with the same files, do both files get sent to 
the Netbackup Server?
3) Do I need to update the Netbackup Client to support PureDisk?

Thanks
Karl





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Re: [Veritas-bu] Win XP client Deduplication

2008-07-04 Thread Ed Wilts
On Fri, Jul 4, 2008 at 3:55 PM, Karl Rossing [EMAIL PROTECTED] wrote:

 I have 75 windows client that I would like to backup over the wan. I
 can't use DLO since we don't have a Windows Domain. I would like to do
 client deduplication.

 I have a few questions in order to verify what I understand.

 Is there some deduplication built into NB 6.5.2/6.5.3 Win XP client?


No.  NetBackup's only dedupe is via PureDisk.


 If I have to purchase PureDisk 6.5, I have further questions.


We haven't installed PureDisk on  XP, we do have it installed on a bunch of
Windows 2003 servers (I'm not the PD expert in my group - somebody else is
doing most of the PD work).  We are not yet using it as NetBackup storage
unit - that can't happen until we install NBU 6.5.2.  Today, the data gets
sent to a dedicated PureDisk appliance which is SuSe-based.

1) If a client has two files with the same data, do both files get sent
 to the Netbackup Server?


 Nope - the client sends enough information over to be able to determine
whether or not any data needs to be sent.

2) If I have two clients with the same files, do both files get sent to
 the Netbackup Server?


Nope.  In fact, we've seeded our PureDisk server with copies of the data
to speed up the initial backup of the remote sites - this is especially
useful if the remote site has a slow network link.  Dump the data to a USB
drive at the remote site, ship it to where the PureDisk server is, and back
it up first.


 3) Do I need to update the Netbackup Client to support PureDisk?


You don't actually have to install the NetBackup client at all.  The
PureDisk interface to restore files is actually pretty good.

   .../Ed

-- 
Ed Wilts, Mounds View, MN, USA
RHCE, BCFP, BCSD, SCSP, SCSE
mailto:[EMAIL PROTECTED]

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Re: [Veritas-bu] Win XP client Deduplication

2008-07-04 Thread Dave Carpe
See responses in-line

David K. Carpe
Principal Systems Engineer
Symantec Corporation
Office: 646.487.6012 
Mobile: 908.963.6818
Home Office: 973.940-1805
email: [EMAIL PROTECTED]
 
 

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Karl
Rossing
Sent: Friday, July 04, 2008 4:55 PM
To: veritas-bu@mailman.eng.auburn.edu
Subject: [Veritas-bu] Win XP client Deduplication

I have 75 windows client that I would like to backup over the wan. I 
can't use DLO since we don't have a Windows Domain. I would like to do 
client deduplication.

I have a few questions in order to verify what I understand.

Is there some deduplication built into NB 6.5.2/6.5.3 Win XP client?
[DKC] No, there is no deduplication in the basic client

If I have to purchase PureDisk 6.5, I have further questions.
1) If a client has two files with the same data, do both files get sent 
to the Netbackup Server? 
[DKC] If both files are identical the all the fingerprints will be
identical. If the fingerprint exists anywhere within the PureDisk Global
Environment, the data associated with that fingerprint will not be
backed up. Fingerprints are 128K in size. So the first file will get
backed up and the second file will simply have meta data indicating the
fingerprints that are already in the storage pool that contain that
file's data.

2) If I have two clients with the same files, do both files get sent to 
the Netbackup Server?
[DKC] No. The first one that gets backed up will send the data
associated with it's fingerprints to PureDisk. The next server will see
that fingerprints already exist for its files and will not be backed up
and the metabase will associate that client's files with the appropriate
fingerprints.
3) Do I need to update the Netbackup Client to support PureDisk?
[DKC] The NetBackup 6.5 Client includes the PureDisk 6.5 Client.

Thanks
Karl





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in
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strictly
prohibited.  If you have received this communication in error, please
notify
the sender immediately, delete this communication from all data storage
devices and destroy all hard copies.
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