If you're considering the DD gateway, call your SE and have a chat with them. I kind of got the idea that it's really only marketed for very specific use cases. (And it ain't cheap.)
From: Sean Martin [mailto:[email protected]] Sent: Friday, October 30, 2009 3:56 PM To: NT System Admin Issues Subject: Re: Data Domain? Good to know. We've been toying with the idea of replacing our current solution. We're mostly an EMC shop as well, but we brought in an IBM N5300 for our backup solution. Just wanted to make sure it would still be usable should we go with a different software solution. Thanks for the feedback - Sean On Fri, Oct 30, 2009 at 11:44 AM, Kevin Lundy <[email protected]> wrote: Yes DD supports various storage through their gateway product line. But they also sell appliances with the storage built in. We are an EMC SAN shop. Our EMC sales weenie came in with the Data Domain guy. They didn't even suggest to us that we buy the EMC storage and use the gateway product. Don't know if that is indicative of their strategy going forward, or just the early integration. My hope is that some of the DD capability will make it's way into primary storage that works better than Avamar. (and cheaper) On Fri, Oct 30, 2009 at 3:27 PM, Sean Martin <[email protected]> wrote: Somewhat on the same topic.... Does Data Domain support various storage solutions on the back-end? Is there any worry that EMC might tie into their storage offerings somehow, rendering other solutions unusable and/or unsupported? - Sean On Fri, Oct 30, 2009 at 11:23 AM, Kevin Lundy <[email protected]> wrote: I had a box in for 2 weeks testing. It is very impressive. They give you 2 metrics. They give you a deduplication amount, and then a compression. So data is deduped, then compressed. In our tests, the total compression (dedupe x compressed) varied quite a bit based on the data. The total number also increases over time. So your first backup to DD only dedupes in essence duplicate files. But the second and third and fourth start adding significant dedupe. In 2 weeks, flat file backups were getting close to 20x. vRanger backups of VMDC was getting 82x. I had one share of flat file data that got close to 40x on the first pass which is not typical. That share holds our "publications" data which we know has a lot of duplication even at the file level, much less at the 4k block level. SQL dumps of our Solarwinds (network monitor) DB got a 2x dedupe and about a 4x compression - with only 2 full backups. So yes, I believe 20x is realistic in most environments. On Fri, Oct 30, 2009 at 3:08 PM, Roger Wright <[email protected]> wrote: After attending a recent presentation for Data Domain's platform and technology, I'm intrigued. The stated up to 20X compression is impressive if realistic. Can any of you relate your experience using DD's products? Roger Wright ___ ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
