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1. Re: Out with the 7k3000, in with the RE4
wonderspark Sep 21, 2011 11:09 PM (in response to Frederic Segard)Yes, I have an Areca 1880ix-12 going into an 8-bay tower with 7x2TB WD RE4 disks (WD2003FYYS) with 1x hot-spare in a 12TB RAID3 set. I love them, and I get sustained 700MB/sec read, 750MB/sec write averages in this set. You having twelve disks in a set will be much faster than that. Post your results when you get it set up... I'd be interested to see what 12 disks do!
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2. Re: Out with the 7k3000, in with the RE4
Frederic Segard Sep 22, 2011 9:51 PM (in response to wonderspark)Thanks. I'll post the results soon. What benchmark program are you using for those figures?
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3. Re: Out with the 7k3000, in with the RE4
wonderspark Sep 23, 2011 12:32 PM (in response to Frederic Segard)I used AJA System Test (for Mac). I set it to a 16GB read/write test to overcome the 1GB cache and get the most accurate "sustained" measurement as possible, thus it was the same regardless of whether the cache was disabled or not. In fact, it was 3MB/sec faster in reads and 15MB/sec faster in writes with the cache disabled. Of course, using smaller tests show speeds much, much higher. I just ran a 1GB test with cache enabled and it was 2716.4MB/sec read, 1291.2MB/sec write. I haven't found a program for Mac that shows the same tests I've seen where it seems to write to the entire volume.
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4. Re: Out with the 7k3000, in with the RE4
JSS1138 Sep 24, 2011 10:50 PM (in response to Frederic Segard) -
5. Re: Out with the 7k3000, in with the RE4
RjL190365 Sep 25, 2011 6:14 AM (in response to JSS1138)Here is the problem:
He had ordered the 1.5TB model of that drive, which was (sadly) either discontinued or never produced. That meant that the smallest capacity of the 7K3000 that's still available is the 2TB model (1TB Hitachi drives are still of the old 7K1000.C design).
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6. Re: Out with the 7k3000, in with the RE4
Frederic Segard Sep 25, 2011 7:14 AM (in response to JSS1138)That's right, they are no longer available. I was getting them for about $85 each. And unfortunately, the 2Gb are around $128, if I recall. Multiply by 12, it becomes expensive. My budget is already stretched as it is with the rest of the gear. Hence my choice of RE4s 500GB at around the same price as the sadly defunct 1.5TB 7K3000.
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7. Re: Out with the 7k3000, in with the RE4
JSS1138 Sep 25, 2011 3:12 PM (in response to Frederic Segard)Multiply by 12
So get fewer drives. With the larger capacity, it can balance out.
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8. Re: Out with the 7k3000, in with the RE4
Frederic Segard Sep 25, 2011 3:23 PM (in response to JSS1138)hehe... well, I could do that, but then I'd sacrifice the needed speed. I do work with uncompressed 10-bit often!




