Two drive RAID enclosure, Thunderbolt?

dingobiatch

macrumors member
Original poster
Jan 29, 2009
85
11
Looking to buy a two drive RAID enclosure that is Thunderbolt for my new Mac Pro (would be putting two Samsung 840 1TB SSD's in it)....

I can't seem to find anything that isn't a four or more drive bay, or that has drives already in it..
 

hfg

macrumors 68040
Dec 1, 2006
3,566
277
Cedar Rapids, IA. USA
Looking to buy a two drive RAID enclosure that is Thunderbolt for my new Mac Pro (would be putting two Samsung 840 1TB SSD's in it)....

I can't seem to find anything that isn't a four or more drive bay, or that has drives already in it..
I use a refurbished LaCie "Little Big Disk" Thunderbolt from MacMall ... I removed the original hard disks and replaced them with SSDs. You can sell or use the hard disks you remove.

A bit more $$$, there is the Akitio Neutrino Thunder Duo Enclosure which works well.

http://www.akitio.com/portable-storage/neutrino-thunder-duo

These both use Apple software RAID.
 

dingobiatch

macrumors member
Original poster
Jan 29, 2009
85
11
Is it possible to use a Drobo mini in a configuration with three drives, where two drives are RAID0, and one drive is by itself?
 

xraydoc

macrumors demi-god
Oct 9, 2005
7,295
1,539
192.168.1.1
http://www.monoprice.com/Product?ab3=b&utm_expid=58369800-11.R-enhtUGRrSdHz5vzpVS2g.1&c_id=113&cp_id=11307&cs_id=1130705&p_id=10943&seq=1&format=2&utm_referrer=http://www.monoprice.com/Search/Index?keyword=thunderbolt

I have one of these with two 250GB Samsung 840 EVOs. Works very, very well. Virtually silent (very small cooling fan). Comes with a .5m Thunderbolt cable.

I get 570MB/sec write and 650MB/sec read per Blackmagic disk benchmark.

It's the same as the Akitio drive linked above

----------

Is it possible to use a Drobo mini in a configuration with three drives, where two drives are RAID0, and one drive is by itself?
No. Drobo uses all drives without configuration options.
 

Chuck Rodent

macrumors regular
Jan 9, 2014
109
44
Some stores are clearing out the WD My Book Duo Thunderbolt. I picked up a 4 GB (2 X 2 TB WD Green drives) for $269. The box can be set up as JBOD, Raid 1 or Raid 0. Everything is functioning fine though the drives are the slowest in the read/write chain. Likely I will replace the drives in a few years with 4TB WD Red drives.
 

dingobiatch

macrumors member
Original poster
Jan 29, 2009
85
11
http://www.monoprice.com/Product?ab3=b&utm_expid=58369800-11.R-enhtUGRrSdHz5vzpVS2g.1&c_id=113&cp_id=11307&cs_id=1130705&p_id=10943&seq=1&format=2&utm_referrer=http://www.monoprice.com/Search/Index?keyword=thunderbolt

I have one of these with two 250GB Samsung 840 EVOs. Works very, very well. Virtually silent (very small cooling fan). Comes with a .5m Thunderbolt cable.

I get 570MB/sec write and 650MB/sec read per Blackmagic disk benchmark.

It's the same as the Akitio drive linked above

----------



No. Drobo uses all drives without configuration options.
Shouldn't you be getting significantly higher write and read than that? I thought the Samsung 840 EVO drives had read/writes of ~500 with just a single one... in RAID0, it should be running almost twice the speed, no?
 

xraydoc

macrumors demi-god
Oct 9, 2005
7,295
1,539
192.168.1.1
Shouldn't you be getting significantly higher write and read than that? I thought the Samsung 840 EVO drives had read/writes of ~500 with just a single one... in RAID0, it should be running almost twice the speed, no?
I was getting 750MB/sec when I had them set up as a two-channel USB 3.0 RAID. I think this enclosure isn't the fastest possible, but it's inexpensive.

Plus the EVO RAID is about 50% full.

And the drive is on a Thunderbolt bus with several other drives. And my machine only has TB1, not TB2.
 

dingobiatch

macrumors member
Original poster
Jan 29, 2009
85
11
I was getting 750MB/sec when I had them set up as a two-channel USB 3.0 RAID. I think this enclosure isn't the fastest possible, but it's inexpensive.

Plus the EVO RAID is about 50% full.

And the drive is on a Thunderbolt bus with several other drives. And my machine only has TB1, not TB2.
Wait. You are using it as USB3 or Thunderbolt? And when you said the original 570/650 numbers, was that RAID0?
 

xraydoc

macrumors demi-god
Oct 9, 2005
7,295
1,539
192.168.1.1
Wait. You are using it as USB3 or Thunderbolt? And when you said the original 570/650 numbers, was that RAID0?
Before I got the TB enclosure, I was using each 840 EVO in a separate USB3 enclosure tied together in a RAID 0 (each drive on its own USB3 bus). That got something like 750MB/sec or so (don't recall exact numbers off hand and I'm not home to look them up). Very fast. USB3 is a pretty impressive protocol.

Then I got the TB enclosure I linked above and popped the two drives in to it. At first I was getting the 570/650 numbers I reported, but subsequently it's been benchmarking at around 650 write and 715 read - so much, much better. I think perhaps I benchmarked it at first with some other activity on the same TB bus that I didn't notice was occurring.

The Monoprice/Akitio enclosure is TB-only (though does have two ports so you can daisy chain off it).