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Forum Discussion
4TB drive recommendations
I currently have 2 x ReadyNAS Pro Business edition units each with 6 x 2TB Hitachi drives and they have been rock solid for several years. One of them however started off life with Western Digital 2TB drives which were awful for reliability. I have also seen a similar pattern for general desktop use of hard disks where Hitachi have proven more reliable than both WD and Seagate. Now this may just have been my own experience rather than an endemic situation but I am now looking at buying a bunch of 4TB drives and I am looking for real world experiences to help me chose a make and model.
NetGears official list is very short of 4TB entries, at least in conjunction with their current ReadyNAS model range and in fact lists just three entries
Western Digital RE WD4000FYYZ 4
Western Digital WD Se WD4000F9YZ
Toshiba MG03ACAxxx MG03ACA400
None of which are Hitachi even though NetGear have listed Hitachi 4TB drives against older ReadyNAS models.
Apart from the fact NetGear will only provide support to you if you use officially listed drives, and apart from the fact that the warranty for the above is five years and it seems Hitachi only offer three years, and apart from the fact Hitachi apparently does not have rotational vibration safeguard, does any one have any feedback on 4TB drives they could offer. Even taking these possible advantages in to effect it seems Hitachi are also slightly more expensive. You would think if it was inferior due to a shorter warranty etc. it would be cheaper. I had been presuming this reflected a real world quality premium as per my own good experiences.
As I would be looking to get 12 x 4TB drives (for a new ReadyNAS 3220) I want to get ones that will last as well as my current Hitachi ones have.
I presume it is still too early to look at 5TB or 6TB drives?
NetGears official list is very short of 4TB entries, at least in conjunction with their current ReadyNAS model range and in fact lists just three entries
Western Digital RE WD4000FYYZ 4
Western Digital WD Se WD4000F9YZ
Toshiba MG03ACAxxx MG03ACA400
None of which are Hitachi even though NetGear have listed Hitachi 4TB drives against older ReadyNAS models.
Apart from the fact NetGear will only provide support to you if you use officially listed drives, and apart from the fact that the warranty for the above is five years and it seems Hitachi only offer three years, and apart from the fact Hitachi apparently does not have rotational vibration safeguard, does any one have any feedback on 4TB drives they could offer. Even taking these possible advantages in to effect it seems Hitachi are also slightly more expensive. You would think if it was inferior due to a shorter warranty etc. it would be cheaper. I had been presuming this reflected a real world quality premium as per my own good experiences.
As I would be looking to get 12 x 4TB drives (for a new ReadyNAS 3220) I want to get ones that will last as well as my current Hitachi ones have.
I presume it is still too early to look at 5TB or 6TB drives?
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- Power is pretty close actually - 4.8 watts avg operating power for the VN, and 5.6 for the DM. For 6 drives that's 42 kwh per year (perhaps $6-$7 per year in Massachusetts, turns out its about €6-€7 in France).
The warranty is what makes it work for me economically. Getting a drive that's designed for NAS and tested by the vendor in NAS using RAID is also reassuring, and gives me some peace of mind. - Well I got 7.5w for dm000...
http://www.seagate.com/www-content/prod ... 1405fr.pdf
Your calculation is still good though. I calculated that the difference was erased within the first year (or close to) before my order. I can't get that number back so I think I might have integrated the discount I had (bought disks by pack of 2 with a 8% discount on top of that). So anyway you are closer than I am, according to the new calculation it should take 4 years to get the money back.
Of course this gives you peace of mind to know it is tested, I just can't attribute a value to this as I only have their commercial stuff that may or may not be exaggerated and that I just can't check by myself. - Perhaps they use more power in France? :D
My numbers for the dm came from here: http://www.seagate.com/gb/en/internal-h ... M000#specs I used Seagate's "average operating power" for both. I'm not sure why its different from the "typical operating power" on the datasheet. If you use 7.5 for the DM, you end up tripling the power cost difference (~$20 per year in the US, €20 in France). It seems odd, but apparently the exchange rate is about the same as the electricity cost ratio.
I agree its hard to put a value on the "peace of mind" - which is why I singled out the warranty on the economic side.
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