EMC DataDomain 600 Series Selection Process
Budgeting process for 2011 has started and we have been looking into what needs to be replaced or upgraded in our infrastructure. We have had two older DataDomain 510′s in service for a few years now, along with a 565 model. We are definitely happy with their performance but we need more space at both of our datacenters for our VMware and Oracle backups.
Below is an overview of the DataDomain 565 we have at our “Production” datacenter.
Production DataDomain 565
24hr max pre-compressed = 1869.5
30 day max pre-compressed = 4278.81
60 day max pre-compressed = 4387.35
120 day max pre-compressed = 4922.56
* above is in gigabyte(s)
So with that in mind, we prefer to hit an 8hr backup window. We currently are not doing that now with our 565 but that is our goal.
Max of 4922.56 / 8hr window = ~615.32 gb/hr
615.32 gigabyte = 4 922.56 gigabit
10gbE = 36,000 gigabit an hour
So from above, it would seem that we could theoretically hit our window if using 10gbE
We are using ~4236.5 gig used after deduplication is done I doing so, would be pushing the throughput and maximum capacity limitations of the DD610. The DD630 would allow ~6tb worth of expansion and we would meet an 8 hour backup window. With the above information, you can see we want to go with 10gbE connectivity. I currently love our Cisco UCS and 10gb network and plan to hook in all critical infrastructure to it via 10gbE.
This was our main limitation here! * Only the DD670 offers 10gbE connectivity (fiber)
So would the DD630 work for us? Yes it would, but who wants to trunk a bunch of gigE ports when you have a 10gb network already? Unless the cost point goes up horrifically, the DD670 would be a better fit in our datacenter.
DataDomain 6xx Overview
Notes: We could expand our DD565 another shelf, but we are getting low on storage at the off-site replication locations for the DataDomains. Win – win but buying a new unit and shipping the 565 to increase capacity off-site. DD510/610s can not expand beyond their initial shelf.
Let us know how you make out. We just went through a similar exercise and ended up settling for the smaller unit because the cost point did actually go up horrifically. I’d be interested to know if other customers were having better luck with negotiations.
Aaron said this on October 7, 2010 at 1:04 pm