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LaCie Thunderbolt Little BigDisk Disassembled - Pics SSD XFer Rates Added
- Thread starter ender21
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Yes, Raid 0, with block sizes from 64K to 256K. These are also just 64GB SSDs. And whoops, I forgot to try just one SSD!
I wonder if I had used Crucial's (or any manufacturer's) 256GB model, if speeds would have been better. Not to mention this is all going to/from one 6Gbps SSD on my Mac Mini. Won't that, theoretically, max out before the two SSDs in RAID 0? I need to re-learn how to create ramdisks!
I was just going to let pros like Anandtech do the heavy benchmarking. I just wanted to get some semi-real world data.
Though in a NON-real world scenario
, I did create a ramdisk and the drive did perform better. TO the drive was not much better. 194MB/s
FR the drive was the best it's been at 248MB/s.
AnandTech coverage on this: http://www.anandtech.com/show/4871/early-benchmarks-and-teardown-of-lacie-little-big-disk
My guess would be DRAM (i.e. cache), but the writing is too blurry to really see anything.
My guess would be DRAM (i.e. cache), but the writing is too blurry to really see anything.
Hellhammer,
Any chance it's the lower quantity of NAND on the 64GB SSDs? In other words, more NAND = greater throughput?
It looks like Anandtech was waiting for you to benchmark it
Xbench is super simple to run and only takes a minute or two, so if you are interested it would be worth trying out. You can have it just run the disk tests.
Crucial m4 64GB vs 256GB
There is definitely a loss in especially write performance with lower capacities (less dies) but the figures you got are still much slower. The read speeds for a single SSD should be as high as 500MB/s (incompressible), so in RAID 0 config we should be looking at much higher speeds than 250MB/s, even if the interface was SATA 3Gb/s.
It looks like Anandtech was waiting for you to benchmark it
Nah. Anand hasn't received his unit yet so this was just to report the early tests. Always great when you get exclusives like this
And yes, I wrote it if that is what you're wondering.
It looks like Anandtech was waiting for you to benchmark it
Xbench is super simple to run and only takes a minute or two, so if you are interested it would be worth trying out. You can have it just run the disk tests.
Ok, here ya go!
Results 341.32
System Info
Xbench Version 1.3
System Version 10.7.1 (11B2118)
Physical RAM 8192 MB
Model Macmini5,3
Drive Type 128GB SSD RAID
Disk Test 341.32
Sequential 210.81
Uncached Write 402.43 247.08 MB/sec [4K blocks]
Uncached Write 284.99 161.25 MB/sec [256K blocks]
Uncached Read 89.07 26.07 MB/sec [4K blocks]
Uncached Read 570.34 286.65 MB/sec [256K blocks]
Random 896.02
Uncached Write 1192.90 126.28 MB/sec [4K blocks]
Uncached Write 417.83 133.76 MB/sec [256K blocks]
Uncached Read 2011.12 14.25 MB/sec [4K blocks]
Uncached Read 1359.97 252.35 MB/sec [256K blocks]
Well that looks good, no matter what it is
Remember that the first figure is the xBench score, not the speed in MB/s. A bit better results than the file test but still only 285MB/s.
Well that looks good, no matter what it is
Eh, not very good for RAIDed SSDs. The 4k reads are almost identical to what I get with one FW800 128GB SSD (my other speeds are considerably lower, but that's because of the FW800).
I have FW800 raid and it doesn't look anything like that.
But of course this is an ongoing thing. There's perhaps problems with this.
Mind you, I have bought one of these so i'm inclined to like it
Also, from all the glowing reports about Lacie gear I'm just glad it still works after a day
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Hopefully, given the price, Anand's results are better than mine.
Hopefully, given the price, Anand's results are better than mine.
can I remove the fans? they really bother me when I sleep next to my mac
There's only one fan, and yes you could remove it. However this thing runs pretty warm even when SSD-only.
Is it possible that those figures show the behaviour of two SATA 1.5Gb/s interfaces?
There must be something wrong...What kind of chipset and/or firmware was choosen by LaCie?
This "Time Machine" is pointing to the ancient history!!!
Is it possible that those figures show the behaviour of two SATA 1.5Gb/s interfaces?
What kind of chipset and/or firmware was choosen by LaCie?
This "Time Machine" is pointing to the ancient history!!!
Well, both stock drives are only 3Gbps. Who knows? Maybe LaCie's SSD release will have a different chipset entirely?
My money's on me screwing something up.
Yes, but LaCie also declares read trasfer rate of 480MB/s and write of 245MB/s.
You can easily obtain this throughput with 2 sata 3Gbps interfaces and 2 "not so new" SSDs. A new SINGLE Corsair Force GT SSD with sata 6Gbps reach 555MB/s read and 525MB/s write.
Moreover LaCie asks $900 for the 240GB model (2x120). That's too much for a software raid box.
I'm not so impressed for this product but for it's price...