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Recent successes with Drobo FS and Mac OS X

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I purchased a Drobo FS in July 2011 with the intention of using it as a big NAS drive. My first attempts were not that successful.

The throughput speed was extremely slow. About 500KB/s when writing to it. Some posts on the Internet suggested this was due to Mac OS X, AFP and Drobo FS firmware. Over time I managed to find a partial solution by connecting it directly into a Mac (not accessing it via a shared router). Sometimes the speed would be up to 30MB/s when writing.

I decided to investigate this again and stumbled on Jumbo Packets – MTU of 9000. So I configured the Drobo FS with a MTU of 9000 and my Gigabit Ethernet on my Apple Thunderbolt Display with a MTU of 9000. My MacBook Pro is connected to the Apple Thunderbolt Display and this means I get the following speeds:
Writing: 30MB/s to 40MB/s
Reading: Up to 95MB/s

So I am much happier now – My MacBook Pro has access to a big disk and I am busy cleaning out all the backups and duplicate copies of files.


Written by Rudi Engelbrecht

August 23, 2013 at 12:50 am