My Thunderbolt/SSD speeds
Ok, so I've been reading these Thunderbolt speed threads while trying to decide on what Thunderbolt device to get and in the process I ran a few test to see what I could get.
My gear includes 2011 iMac i7 3.4Ghz 24GB ram with 2GB video card and standard 1TB HD. Pegasus R4 4TB and a LaCie 2TB Thunderbolt device(due to arrive next week) I did order the seagate one but returned it after reading the speeds posted on some of the threads. While good, it's not great imo. Here are some of my test and I hope they help you decide what you get.
First a quick recap of what I found important to me.
ALL are in Write/Read format. (162write/382read)
Online tests others have reported
Seagate Stae121 TB, Single Crucial M4 128GB - 200/382 (not bad)
1TB LBD(stock) 162/174 (sad)
SSD LBD(Stock) 257/445 (decent)
SSD LBD(1TB with 2 SSD installed 356/475 - (This is what I aim to do when my LBD arrives. Just paid $398 on Amazon for the 2TB one. April 2012) (Pretty fast)
(I found several test with these setups and they seem real consistent give or take 10/10
My Setup all with the iMac.
AJA test 2048x1556 10 bit RGB 4GB file
Pegasus R4 4TB(Stock) in Raid 0 512 sector and stripe - 560/452 (worth the $1000 imo)
Pegasus R4 with 1 SSD Crucial M4 128GB - 208/394
Pegasus R4 with 3 HD drives in Raid 0(3TB) - 400/331
Pegasus R4 with 2 HD drives in Raid 0(2Tb) - 380/235
Pegasus R4 with 2 SSD Crucial M4 Raid 0, 512 sector and stripe - 409/598
(so with Pegasus R4 with 2 SSD for 256GB getting 409/598 and 2 1TB HD for 2TB getting 380/235 is fairly decent however I miss the stock 560/452 speeds of the R4 in Raid 0)
I also have a Crucial M4 128GB in my 2011 13.3" 8GB ram Macbook Pro and I'm getting speeds of 190/518
AJA test 1920x1080 10 bit RGB 1GB file
Pegasus R4 4TB(Stock) in Raid 0 512 sector and stripe - 572/486
Pegasus R4 with 1 SSD Crucial M4 128GB - 273/352
Pegasus R4 with 3 HD drives in Raid 0(3TB) - 505/305
Pegasus R4 with 2 HD drives in Raid 0(2Tb) - 373/213
Pegasus R4 with 2 SSD Crucial M4 Raid 0, 512 sector and stripe - 525/507
So with the LBD with 2 Crucial 128GB installed I should be able to get 356/475 and 560/452 with the Pegasus R4(stock 4TB) OR
stay with the Pegasus R4 setup - 2 Crucial 128GB in Raid 0 installed at 409/598 and 2 - 1TB HD in raid 0 getting 380/235 I think I'm going to go with the LBD and Pegasus R4 setup as that will give me great speeds all around with a total of 4.5TB of space + 2 1TB HD(from stock LBD) that I can use in USB enclosures for backups or whatever. This is also the reason why I got the 2TB LBD. I don't need a fast drive for nightly backups.
I decided to go with the Crucial M4 128GB since I don't need a whole lot for just the OS and the reviews seem good and they are only $140 right now on Amazon. 128x2 for 256GB for the OS/applications is more than enough. The Pegasus OEM HD setup is for working files and I'm not worried about Raid 0 because I have external USB and FIrewire drives that are backing up the Raid 0 setup. I back up via TM and 2 other backups once a day each via Carbon Copy Cloner so I'm well covered. The internal HD of the iMac will be used as a scratch disk.
What I do...I'm a Photographer who edits a lot and does some video editing with FCPX.
Hope that all helps you out, I recommend either a LBD with 2 SSD and a Pegasus R4(stock) OR just the Pegasus R4 with 2 SSD's in Raid 0 and 2 HD's in Raid 0. You could even get the Pegasus R6 and do 2 SSD's in Raid 0 and 4 HD's in Raid 0 and get really great speeds all around and yes, I wish I had brought the R6. lol Luckily I got my R4's for $949 when they first came out(I have 2 R4's but they are on different iMac's) I haven't had any issues with my R4's. They are on 24-7 since i got them way back in September. Yes, they are expensive but damn they are nice.
