gdgt

So I was using my drobo to do time machine backups... but in my case I had it connected to a server and it was a time machine shared disk as well as the time machine backup for the server. I never really saw it take 15-20 minutes to make a backup. Normally I never even really saw it do anything other than the thing spin for a bit to mount the network dmg and make the changes... one thing you might want to check is that you have normally transfer speeds to the drobo. You can do the unscientific way of just copying a large file with Activity monitor open to the disk section and see what the peak and the average transfer speed is. Do it in data not io mode.

To be a bit more scientific about it try getting this app

www.aja.com­/ajashare­/AJA­_System­_Test­_v601.zip

It is the program that Drobo support sent me to when I was having transfer speed issues. You want it to have a very consistent transfer speed if it is very choppy or slow (sub 15 MB/sec) you may have an issue with something in one of the devices. You can also run it against your internal drive and against another external drive to compair.

They said to use the following settings

Just select the Drobo and these settings:

"test" = Disk Read/Write
"file size" = 1GB
"disable file system cache" = checked
"video frame size" = DVCPro1080i60

Any answers...?