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Forum Discussion
nordic50
Dec 01, 2011Aspirant
2x 2TB WD green in ReadyNAS Duo?
Is it compatible with this?
alexofindy
Dec 10, 2011Aspirant
Good suggestion - you probably have the same Fry's ad I do!
A year ago, when I bought my WD30EZRS they were advertised as 7200 RPM drives, the hitachi model you mention was advertised as 5400 RPM drives. So, I went for the WD's.
But, probably, I was fooled. Both drives are "enviro" drives with variable spin speeds, the Hitachi's call this "coolspin" and the WD's "intellipower". At least on Tom's Hardware, the two drives have generally similar specs. And, the marketing for the WD30EZRS drives now calls them 5400 RPM drives as well. (WD's tech support tells me the drive speed varies between 5400 and 7200). (as another aside, the WD30EZRS has been replaced by a WD30EZRX model which has a SATA 3 interface. I think my readynas is SATA 2, so this probably is irrelevant).
An array is probably only as fast as it's slowest drive, so I wouldn't want to degrade a 7200-rpm array to 5400. But, in doing a bit more homework, it seems the Hitachi 5K3000 models you suggest is probably similar to the WD's I already have, so I may well expand with the Hitachi model as you suggest
The LCC issue, with the WD drives, as you can probably gather, drove me nuts.
Have you checked the SMART status with your Hitachi drives? Is the LCC increasing towards infinity and beyond as it does with a non-wdidle3'ed WD drive?
Thanks again!
A year ago, when I bought my WD30EZRS they were advertised as 7200 RPM drives, the hitachi model you mention was advertised as 5400 RPM drives. So, I went for the WD's.
But, probably, I was fooled. Both drives are "enviro" drives with variable spin speeds, the Hitachi's call this "coolspin" and the WD's "intellipower". At least on Tom's Hardware, the two drives have generally similar specs. And, the marketing for the WD30EZRS drives now calls them 5400 RPM drives as well. (WD's tech support tells me the drive speed varies between 5400 and 7200). (as another aside, the WD30EZRS has been replaced by a WD30EZRX model which has a SATA 3 interface. I think my readynas is SATA 2, so this probably is irrelevant).
An array is probably only as fast as it's slowest drive, so I wouldn't want to degrade a 7200-rpm array to 5400. But, in doing a bit more homework, it seems the Hitachi 5K3000 models you suggest is probably similar to the WD's I already have, so I may well expand with the Hitachi model as you suggest
The LCC issue, with the WD drives, as you can probably gather, drove me nuts.
Have you checked the SMART status with your Hitachi drives? Is the LCC increasing towards infinity and beyond as it does with a non-wdidle3'ed WD drive?
Thanks again!
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