I'm sorry if I didn't give enough information.
1. We do backup our Celerra via NDMP. We run differentials during the week to
the VTL and full straight to tape on the weekend.
2. Currently, another guy in our department is working on our DR plan. But
what we have been doing is taking our weekend full backup to tape, to an
offsite location.
3. We are currently backing up 10 clients and around 1.5 TB of information.
So you are right, we are not a big facility.
4. The VTLs are carved up into 10 smaller drives because that is how the guy
from EMC who installed and configured our DL3D 1500 set it up originally.
5. I was not part of the decision making process on buying any of the
equipment so I have no idea how/why the DL3D was sized.
Coty, Edward wrote:
> 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.COM
>
> -----Original Message-----
> From: EMC NetWorker discussion [mailto:NETWORKER < at > LISTSERV.TEMPLE.EDU]
> On Behalf Of jasondre
> Sent: Wednesday, June 17, 2009 10:40 AM
> To: NETWORKER < at > LISTSERV.TEMPLE.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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