Data Domain gets Nehalem boost
Doubled mainstream deduplication performance
We understand Data Domain is introducing a new top-end mainstream product, more than twice as fast as HP's D2D4312 StoreOnce deduplication offering.
The DD6xx series of products is Data Domain's mainstream, with the DD880 being its extreme high-end appliance, deduping at up to 8.8TB/hour. The DD690 is the fastest mainstream appliance, with up to 36TB of usable capacity and a 2.7TB/hour inline deduplication rate.
Inline deduplication is carried out as backup data lands on the device, and not afterwards in a post-process deduplication exercise. The faster inline deduplication is carried out the less time is needed for backups to happen. It means customers' data is better-protected.
The DD670 has, we are told by people close to the situation, half the number of CPUs of the HP D2D4312, a little more than one third of the memory, and is capable of inline deduplication at 5.4TB/hour, whereas the D2D4312 achieves 2.4TB/hour. We do not know how many processors the D2D4312 employs - HP is keeping that information private.
The previous top-end DD6xx model, the DD690, dedupes at half the rate of the DD670, and does so using quad-core, pre-Nehalem Xeons - dual 5400s we believe. A doubling of performance has been achieved in the past by Data Domain increasing CPU horsepower, riding the Intel processor curve.
When the DD690's performance was lifted to 2.7TB/hour we suggested it could eventually go to 5.4TB/hour by doing this, using Nehalem 5500 processors. That looks like what has happened, except that Data Domain is introducing a new model, the DD670 and not upgrading the DD690.
That product stays on the books, not being retired, but surely the end is now in sight, unless there is a CPU boost being planned for it which will lift its performance above 5.4TB/hour. Perhaps it will use six-core processors? That would explain why a DD670 moniker has been used for the presumably Nehalem-based DD670, leaving open the prospect of a coming DD690 upgrade.
We expect a formal announcement from Data Domain about the DD670 later today. ®
Speeds & Feeds
Check out the spec sheet http://goo.gl/VH4u
5.4TB/hr with DD-Boost & 10GbE, so they're offloading de-dupe to media servers.
Netbackup & OST speed is actually 3.6TB/hr with 10GbE.
But what's the price ? Maybe you could buy 2 x the competition and not faf about with OST & DDBoost.
Nice if you use Symantec
While I have to agree these quoted speeds are impressive you need to remember a number of small facts.
i. In the past DataDomain have only quoted speeds based on the use of NetBackup and OST, I am assuming now these are also dependent on the new OST Boost product.
ii. I assume this speed is dependant on a network with end to end 10 GbE.
iii. Maxing out the injest of the appliance is seldom achieved as usually the limit of concurrent streams is reached first.
So beware if you are anything but a Symantec customer, you might want to do some performance testing first.