Re: EMC DD Boost / Data Domain
Date: Wed, 4 May 2016 11:28:27 -0500
Message-Id: <3B730269-D22A-4C62-95E7-9F7472DAE765_at_gmail.com>
We use Data Domain for Oracle, MySQL, and MS SQL DB backups, and considered DD Boost. As with anything YMMV; Ultimately we decided against using boost due to CPU utilization. I'd rather not chew up the most expensive cores in our infrastructure with something that DD has the ability to do natively. Unless we missed something, it didn't seem worthwhile.
The backup strategy you're suggesting is exactly what we're doing. Our process is to mount DD via NFS on Unix, CIFS on Windows, and backup uncompressed to the mount. The MS SQL backups are single file, however we have a small level of parallelism on the Oracle side. You are correct that you'll want to turn off compression. Whether native DD, or through DD Boost, compression will kill the efficiency of your dedup. It's highly suggested by EMC that you have an mtree configured for each server.
As an aside, I'd note we've had a very difficult time with overrunning DD's streams capacity after the last OS upgrade. Historically it's been a good product, but recent issues have left a sour taste in my mouth. That's an ongoing battle with EMC that has me longing for Oracle's urgency of Sev 3 support :/
> On May 4, 2016, at 11:12 AM, Jeff Thomas <dbmangler_at_gmail.com> wrote:
>
> Our environment is 11.2.0.4 / OEL 6 / RAC.
>
> Currently we are using Netbackup, compressed incrementals to the FRA, then backup recovery area to tape.
> Our company has purchased the EMC suite of backup tools to replace Netbackup.
>
> My understanding is the optimal use of DD Boost/DD is to turn off compression, set FILESPERSET to 1, skip backups to the FRA;
> going directly via the DD Boost module to DD, essentially using DD as your tacit FRA.
>
> I would appreciate hearing any experiences with respect to your B/R strategy using DD Boost / DD.
>
> Thanks...
>
>
-- http://www.freelists.org/webpage/oracle-lReceived on Wed May 04 2016 - 18:28:27 CEST