We are currently running 10 GbE from our Linux backup servers to the dedupe
appliances. The dedupe appliance vendor does charge a significant price for
their OST compatible license/plugin. It is a one-time license that can be used
with multiple media servers or even multiple NetBackup domains. But also note,
the vendor plugin also offloads most of the dedupe process to the media server
based on the plugin. This significantly reduces the amount of traffic between
the media servers and the dedupe appliance. But if your media server is low on
memory or CPU, the plugin could drive you over the top.
The other nice thing with replication to remote sites is easy, and uses very
little bandwidth. Essentially NetBackup controls the replication but the dedupe
appliance is actually moving the data - in deduplicated form. This can be done
using a remote media server to your local NetBackup domain, or it can be done
with AIR. We do both methods, for various reasons. If you go with AIR and a
dedupe vendor, you may need to go to NBU 7.6.x. AIR with other vendor's dedupe
has some limitations based on NBU version.
I think the NBU appliance solution is also very competitive. All forms of
replication are intrinsically supported. No need to consult the vendor support
matrix every time you upgrade, or to see if new features are supported. The
Deduplication is built in, replication via AIR and/or SLP's is supported. The
appliances have built-in 10 GbE.
Jonathan, as far as your DR solution goes, it should work, other than in your
DR scenario your appliance is going to contain "copy 2" of the backup. And that
is dependent on the name of the remote appliance/path is identical to the name
in your current production setup. If the name has to change in any fashion, you
might actually have to import all the disk images. I would test the DR
configuration to be sure.
-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of
Lightner, Jeff
Sent: Thursday, October 16, 2014 8:29 AM
To: VERITAS-BU AT MAILMAN.ENG.AUBURN DOT EDU
Subject: Re: [Veritas-bu] Deduplication with OST
We never got OST license here but use Deduplication. We do it using 10 GB
Ethernet NFS mounts from the Dedupe appliances on each of our master and media
servers. It may not be cheaper in the long run to buy a 10 GB switch and 10
GB HBAs for every server (although some now come with embedded) than using OST
(especially if you already have a fibre san). Here our solution evolved from
1 GB NFS to the 10 GB with switch so has been done over time. Both the Data
Domain and the Quantum DXi dedupe appliances allow for the 10 GB (which runs at
fibre speeds but does Ethernet instead of SCSi).
My understanding is that most of the Dedupe appliance makers allow you to do a
setup to wherein you have one (or more) unit(s) on site and similar offsite and
do background synchronization from the onsite to offsite to avoid having to
send tapes. Here we are still doing Dedupe onsite but duplicating to tapes to
be sent offsite (again because of evolution - we used to backup directly to
tape).
-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Martin,
Jonathan
Sent: Wednesday, October 15, 2014 8:25 PM
To: VERITAS-BU AT MAILMAN.ENG.AUBURN DOT EDU
Subject: [Veritas-bu] Deduplication with OST
All,
We are currently running 7.5 on Windows and looking to add deduplication
appliances as a backup target. Ideally, we would purchase the DPOO (OST/AIR)
license to keep track of the images as they write locally and then replicate to
DR, but that may not be a possibility based on budgetary concerns. Without
getting into the specifics of which deduplication appliances we are looking at,
I can safely assume that we can use a DSU or DSSU to write to a local CIFS
target (e.g. \\Prod-Appliance\Backup1 replicated behind the scenes to
\\DR-Appliance\Backup1). I am looking at a scenario where we use VM replication
to replicate the master/media servers from Prod to DR. When I bring up this
master/media in DR, could I use a hostname/DNS alias to make \\Prod-Appliance
redirect to \\DR-Appliance?
I realize that this is essentially a "poor man's OST/AIR", but this may be the
path I have to go down due to budgetary constraints. Is anyone doing anything
similar to this? In previous versions of Netbackup I could crack open the
catalog files to modify the fragment locations (e.g. E:\Backup --> F:\Backup)
but it looks like those pointers have all been moved (into the DB?)
Your ideas are appreciated,
-Jonathan
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Athena(r), Created for the Cause(tm)
Making a Difference in the Fight Against Breast Cancer
__________________________________________________________
CONFIDENTIALITY NOTICE: This e-mail may contain privileged
or confidential information and is for the sole use of the intended
recipient(s). If you are not the intended recipient, any disclosure,
copying, distribution, or use of the contents of this information
is prohibited and may be unlawful. If you have received this electronic
transmission in error, please reply immediately to the sender that
you have received the message in error, and delete it. Thank you
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
DTCC DISCLAIMER: This email and any files transmitted with it are confidential
and intended solely for the use of the individual or entity to whom they are
addressed. If you have received this email in error, please notify us
immediately and delete the email and any attachments from your system. The
recipient should check this email and any attachments for the presence of
viruses. The company accepts no liability for any damage caused by any virus
transmitted by this email.
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
|
