Kevin OBrien

Seagate Enterprise Capacity 3.5 HDD Constellation ES.3 Review Discussi

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The Seagate Enterprise Capacity 3.5" hard drive line is the newly rebranded family of high capacity hard drives of which the Constellation ES.3 is the newest member. The ES.3 is a 7,200 RPM, 3.5" enterprise hard drive with SAS or SATA 6Gb/s interface that's offered in capacities up to 4TB. Seagate didn't just bring a capacity bump to the line though. Compared to the prior generation Constellation ES.2, the ES.3 offers a sustained data rate of 175MB/s, up 13%, and Seagate has doubled the cache from 64MB in the ES.2 to 128MB in the ES.3.

Seagate Enterprise Capacity 3.5 HDD Constellation ES.3 Review

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Looks like a really nice drive!

Some graphs look weird for the ES.2 (8k 70% read 30% write throughput, File Server throughput), as if it wasn't using NCQ at all. Web server throughput looks normal again, though. Anyway.. it's in these 2 weird tests that the ES.2 features a really small standard deviation. And since it'S performing pooly on an absolute scale I don't think this "advantage" is worth anything. Or put another way: I don't think the ES.3 is any worse here than the other drives.

MrS

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Any chance of comparing the Seagate Constellation ES.3 2/3TB SAS against the Hitachi Ultrastar 7K3000 2/3TB SAS drives?

We have requests in with Hitachi and Toshiba to get the latest generation of their respective SAS drives. Waiting...

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MrSpadge' timestamp='1361621986' post='279359']

Looks like a really nice drive!

Some graphs look weird for the ES.2 (8k 70% read 30% write throughput, File Server throughput), as if it wasn't using NCQ at all. Web server throughput looks normal again, though. Anyway.. it's in these 2 weird tests that the ES.2 features a really small standard deviation. And since it'S performing pooly on an absolute scale I don't think this "advantage" is worth anything. Or put another way: I don't think the ES.3 is any worse here than the other drives.

MrS

The ES.2 is definitely an oddball in our lab. We have two revisions... well one with fw 001 and another with fw 002, both have prescan disabled and their performance is incredibly low and flat-lined. The interesting part though it is affects mixed workloads with some write, but not 100% read/write random 4k as much. Its like it was overly tuned for a specific type of data pattern. In any event the ES.3 is leaps and bounds better across the board ;)

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We have requests in with Hitachi and Toshiba to get the latest generation of their respective SAS drives. Waiting...

I have both the Hitachi Ultrastar 7K3000 and Toshiba MK2001TRKB 2TB SAS drives here, not much good to you here though hey :)

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