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Seagate ST3000DM001 7200.14 Compatibility and Warranty
I recently had some corruption problems with my ReadyNAS Ultra 4 and with the help of Netgear technical support it is back up and running in a somewhat patched mode. Their recommendation is to upgrade the current drives (Seagate ST2000DL003-9VT166), since they are not supported with the CC32 firmware and can't be upgraded to a higher level, then do a factory reset and restore my data. Since my Ultra 4 has been running for about 4 years with only minor problems until my admin password got corrupted twice recently the upgrade is an unexpected expense so I am trying to do it with as little cost as possible.
In reviewing the compatibility list for my model (http://kb.netgear.com/app/answers/detail/a_id/20641) I noticed that the Seagate ST3000DM001 is included and I already have two of those drives in a Mediasonic HFR2-SU3S2 4-bay enclosure configured as RAID1 and I ordered two more so I could replace the current drives in the Ultra 4. At first I was concerned about the one year warranty shown in the Netgear compatibility list but it turns out the warranty is actually two years, at least on current models, and even though it is designed primarily as a desktop drive Seagate shows it as certified in their compatibility list for business NAS (http://www.seagate.com/files/www-content/support-content/external-products/business-storage/_shared/docs/nas-certified-drives-sc522-2-1306us.pdf) although the NAS model used to certify it is not identified.
I'm certainly not arguing that the ST3000DM001 should be preferred over the WD Red or Seagate Constellation drives for NAS configurations but it makes me feel better to know that the warranty is actually two years as opposed to the one year specified in the Netgear compatibility list and that Seagate considers it certified for NAS applications. I plan to use my four Seagate ST2000DL003-9VT166 drives in the Mediasonic enclosure and hope that is not as sensitive to the drive firmware issues as my Ultra 4.
Perhaps this information will be helpful to users that are on a tight budget and might be able to afford the ST3000DM001 drives but not the more expensive "NAS" drives for an upgrade or new installation.
In reviewing the compatibility list for my model (http://kb.netgear.com/app/answers/detail/a_id/20641) I noticed that the Seagate ST3000DM001 is included and I already have two of those drives in a Mediasonic HFR2-SU3S2 4-bay enclosure configured as RAID1 and I ordered two more so I could replace the current drives in the Ultra 4. At first I was concerned about the one year warranty shown in the Netgear compatibility list but it turns out the warranty is actually two years, at least on current models, and even though it is designed primarily as a desktop drive Seagate shows it as certified in their compatibility list for business NAS (http://www.seagate.com/files/www-content/support-content/external-products/business-storage/_shared/docs/nas-certified-drives-sc522-2-1306us.pdf) although the NAS model used to certify it is not identified.
I'm certainly not arguing that the ST3000DM001 should be preferred over the WD Red or Seagate Constellation drives for NAS configurations but it makes me feel better to know that the warranty is actually two years as opposed to the one year specified in the Netgear compatibility list and that Seagate considers it certified for NAS applications. I plan to use my four Seagate ST2000DL003-9VT166 drives in the Mediasonic enclosure and hope that is not as sensitive to the drive firmware issues as my Ultra 4.
Perhaps this information will be helpful to users that are on a tight budget and might be able to afford the ST3000DM001 drives but not the more expensive "NAS" drives for an upgrade or new installation.
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- The cost difference in the UK is under 10%. The absolute difference is very small.
The warranty on the red drives is 3 years.
I would not get the DM drives. - The 3TB WD Red drives (which at least in the US have a five year warranty) are currently $166 apiece on Newegg and I got two of the ST3000DM001 drives from them for $175. That's a lot more than 10% but like many other things YMMV.
The original definition of RAID was was Reliable Array of Inexpensive Disks although IBM changed it to Reliable Array of Independent Disks since nothing they sell to enterprises is inexpensive. :)
No doubt that the enterprise NAS drives should have a longer life but with free replacements during the two year warranty period and lower per drive replacement costs after that I'm willing to take a chance. My understanding is that the recent models of the ST3000DM001 (7200.14) drives are more reliable than the older models which did not have a very good record.
Edit: It turns out there are currently two models of the 3TB WD Red drive listed on Newegg, the IntelliPower (variable rotational speed) WD30EFRX model with a three year warranty for $119, and the 7200 RPM WD3001FFSX "Pro" model with a five year warranty for $166. Only the WD30EFRX model is certified by Netgear for use in the ReadyNAS Ultra 4. - Yes you would have wanted the standard red drives. Yes the cost difference is more than 10%, but still only $30 per drive.
I suppose it's comes down to the value of 1 extra year of warranty and a good track record in readynas units; and of course how tight your budget is. - And the fact that I had two of the ST3000DM001 7200.14 drives already. If I were buying four new drives I might consider spending the additional money ($120) for the standard WD Red drives. Whatever performance is lost by IntelliPower versus 7200 RPM is probably offset by less heat generation and longer drive life.
- I have my rn104 equiped with the st2000dm001, wich i regret. These drives are dropping like dead mosquitos. 2 of the drives are 2 years and still running. the 2 newer ones (1.5 year) both broke down and one of them is still at Seagate for warranty.
I replaced that drive with a 3TB Seagate NAS drive and hope for the best. The next failing one will allso be replaced with a NAS drive.
For the statistics... The NAS runs about 10 hours a week. - That may be my strategy in the long run as well if the ST3000DM001 drives I purchase fail out of warranty. It would be nice if Seagate and other drive manufacturers allowed for trade-in and upgrade of faulty drives during warranty rather than always replacing them with the same model. It really wouldn't cost them much and if the upgrade price was reasonable that would encourage users to move away from drives that are problematic and improve their overall reputation.
Dream on... - FWIW They actually don't always replace with the same model. The promise is to get a comparable (or better) replacement.
- Yes, but I believe that's usually at the vendor's discretion. It would be nice if they would routinely offer that choice to the customer as part of an official upgrade program for drives that fail in warranty.
- Well, that would not make very good business sense from the drive manufacturer's point of view. Essentially you are saying they should insure you against making the wrong choice in the first place. Even if they offered this, the net cost to the consumer would likely be higher than if they had just bought the most appropriate drives at the outset.
Can you not return the DM drives? - I don't think so since the first two were purchased from Newegg in early May of this year. I still think they may be the "right" drives for me given my situation and the fact that they are on both Seagate's and Netgear's certification lists for NAS drives but time will tell. In two or three years I may be able to replace them with similar capacity SSD's for a reasonable price given that the 1TB models are currently selling for as low as $330 (http://www.amazon.com/SanDisk-Ultra-2-5-Inch-Height-SDSSDHII-960G-G25/dp/B00M8ABHVQ) and a couple of years ago they were over $1000.
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