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Re: [Veritas-bu] Data Domain OST
2010-07-17 23:38:51
I'm not sure one can learn much from such a generic question.
Not what you were asking, but I get 60+MB/sec on a single stream or 120MB/sec all streams on my 6.5.5 Linux server via OST to a Quantum 6550, and that's via its 2 1Gb/S interfaces (bonded) ... should do better once Quantum gets the 10Gb interface working for us. Inline dedup is configured. Jumbo frames, I believe.
The single stream number is with data on the media or master server. Our well-connected, larger servers tend to get 20-30MB/sec, with most others getting 2-15MB/sec. Misconfigured 100mb/s connections get about 250 KB/sec. ;-)
As we were testing our backups and restores, I don't think we ever came close to measuring the Quantum capability, despite trying .. most often being limited by client disk or connection. I've no reason to believe a similar class Data Domain would perform differently in gross terms, given the reputation of Data Domain.
For us, having the 6550s do replication via OST (no data server data I/O), was an excellent OST bonus over the purported speed increase over NFS I/O.
Cheers, Wayne
On Fri, Jul 16, 2010 at 5:23 PM, Renee Carlisle <rcarlisle AT serverwarecorp DOT com> wrote:
Is anyone out there using a Data Domain with the OST plug in for NetBackup? (Especially if you are running NBU 7) Can someone give me a rough idea what kind of performance numbers you are getting....just looking for an average mb/s per stream on typical backup jobs. Don't need a lot of detail, just wanting some rough ideas.
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