What happens if you lose a volume on the Celerra? You would lose the snapshots
also. Are you replicating that data to another site? If not then your backups
are you 1st line of recovery. Snapshots are for operationally recovery. I think
you should backup the Celerra via NDMP to your EDL. If you only need to keep 4
weeks then keep it all on EDL. What is your DR plan? Are you replicating the
DL3D to another site? If so your DR plan is covered. If not then you need to at
least clone your full backups to tape weekly for a DR plan.
You don't state how many clients, how much data you are backing up. If just one
master server in use then it cannot be that big. Why do you have it carved up
into 10 smaller VTL? Why not just one large one and do all your backups to the
one VTL. You can use networker to stagger your fulls, differentials,
incremental,etc,etc.
What was your DL3D sized for? How many weeks or days of data and based on what
dedup ratio? I would keep at least one weeks of fulls and 6 days of incremental
on the DL3D. Clone each full backup to physical tape. If the DL3D has the
capacity then keep as much of your backups on DL3D as possible.
EDWARD COTY
LEAD STORAGE ENGINEER, LCNA, NACP
WORK - 973-533-2098
CELL - 973-296-0918
EDWARD.COTY AT AIG DOT COM
-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On
Behalf Of jasondre
Sent: Wednesday, June 17, 2009 10:40 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] Please critique our setup
Hey all, I'm new to Networker, only been using it for 8 months and am basically
the only one at our site using the software. I just want to share our setup
and hopefully get some ideas on what I could be doing different/better.
So, here goes.
Equipment:
Dell PowerEdge R900 - Networker Server
Dell 124T Autoloader LTO-4- physical tape drive
EMC DL3D 1500 - capacity 3.8 TB (at the moment 1.55 TB Free space)
Software:
Networker 7.5.1
Alright, now that I've got that out of the way, here is our setup. As you can
see, we aren't a huge operation and it seems that the way we are configured is
working so far. But i'm wondering if it could be better.
Right now the DL3D is split up into 10 smaller LTO-3 VTLs. I am using 5 VTLs
for backups that are on a "weekly" retention policy and the other 5 for backups
that are on a "daily" retention policy.
Every weekend we do a full backup directly to tape. We don't use any cloning.
Should we? I don't really see a need as of yet.
Also, we keep 4 weeks worth of "snapshots" on our EMC Celerra for quick
recovery purposes. Which, in my opinion, makes our DL3D completely worthless.
So, in the event we need to do a recovery from longer than 4 weeks, I have to
go to tape.
Does anyone see anything wrong with this setup? Anything you might do
differently?
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