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Speedtest: Drobo 5D vs 5N vs 5C
01-09-2017, 12:54 AM (This post was last modified: 01-09-2017 12:56 AM by Zathrak.)
Post: #1
Speedtest: Drobo 5D vs 5N vs 5C
Assuming traditional hard drives are installed in the drive bays and regardless of wether or not the SSD bay is in use, isn't the 5D, 5N, and 5C all bottlenecked in terms of read/write? In other words, regardless of which one you get and despite the difference in maximum bandwidth across all three devices, they would be performing at the same speed across all three mediums (Thunderbolt 1/2, USB 3.0, Gigabit Ethernet) all things equal and optimal due to the slow speeds of the drives themselves, right?

Zathrak

Drobo 5D | 64GB Crucial m4 SSD | 5 x 3TB Hitachi | Late 2012 iMac Intel Core i7 3.4Ghz, OS X Mountain Lion via Thunderbolt
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01-09-2017, 08:06 AM
Post: #2
RE: Speedtest: Drobo 5D vs 5N vs 5C
from what I understand, The chipset / HDD speed is limiting the 5C to about 250 MB/s (or 2 GB/s), and the 5N is obviously limited to the 1GB link speed. I know nothing about the 5D.

Drobo (Gen2)
Drobo 5N
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** Praise the Gods, Do Good, Act Bravely. **
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01-09-2017, 04:38 PM
Post: #3
RE: Speedtest: Drobo 5D vs 5N vs 5C
250MB/s is pretty good

in my sigs i usually have some speed info but i think i need to do some speed tests on the 5d still...

(btw i have XP home SP2, a Drobo v1 with 2x 1TB/2x 1.5TB WD greens, & a bkp Drobo v2 with the same + a DroboShare: unused)
& a DroboS v2 with 3xWD15EADS &2x1TB in DDR mode on win7, & a drobo5D (all usb)
  • btw i did a sustained (write) operation for about 6 hours, and got 13.2MB / sec ...objection? "sustained" :)
    (16.7MB/s on a v2 & 47-96MB/s drobo-s)
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01-10-2017, 10:17 PM
Post: #4
RE: Speedtest: Drobo 5D vs 5N vs 5C
So why does my 5c only get 15MB/s? hah
I don't get it at all, bout to return it and give up on Drobo.
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01-11-2017, 05:56 PM
Post: #5
RE: Speedtest: Drobo 5D vs 5N vs 5C
hi hastor, dont give up just yet, we posted some more info for you in case it helps Smile
http://www.drobospace.com/forums/showthr...http://www.drobospace.com/forums/showthread.php?

(btw i have XP home SP2, a Drobo v1 with 2x 1TB/2x 1.5TB WD greens, & a bkp Drobo v2 with the same + a DroboShare: unused)
& a DroboS v2 with 3xWD15EADS &2x1TB in DDR mode on win7, & a drobo5D (all usb)
  • btw i did a sustained (write) operation for about 6 hours, and got 13.2MB / sec ...objection? "sustained" :)
    (16.7MB/s on a v2 & 47-96MB/s drobo-s)
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