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HGST Deskstar NAS 6TB HDD Review Discussion

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The new 6TB HGST Deskstar NAS HDD provides stability in multi-bay NAS systems, providing 2TB more than their prior top-capacity offering. The drives post competitive numbers when configured in CIFS and are well-suited to the needs of small NAS environments where capacity needs trump most else.

HGST Deskstar NAS 6TB HDD Review

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Thanks for the review.

it looks like this is a slower drive than I had been expecting, although it probably is very reliable. Maybe I should just stick with the WD Black series for now. Any word on if they will release a 6Tb version?

Edit: On the other hand, it may be a good backup drive; probably better than getting the WD Greens or low end Seagate drives.

Edited by CrazyElf

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Wondering why its mentioned only up to 8 bays? I don't see that listed on HGST website nor do HGST techs says otherwise. Have used previous 4TB version in 24 bays and no problem now for over a year as RAID 6. Is it only due to a concern of vibration?\

Thanks.

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They would prefer you use Ultrastar in those environments. It's more about market segmentation.

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I wonder why you do not mention the background media scan (BMS) which comes with the 6 TB and the 5 TB version of these HGST NAS drives and can clearly be heard (I tested them both). Just google for "background media scan blog.disksurvey" to get further information.

In my opinion the BMS is a very important feature and should be mentioned (although even HGST does not mention it in the official specification) because on the one hand (positive) it obviously means more reliability of the drive, on the other hand (negative) BMS means a constant kind of klicking-sound every round about 5 seconds (!). How can this sound be described? Well, I would say a kind of short hiccup. Sounds like a mixture of a very short “trk” and “krik” and “kruk”. On Youtube there are some videos where you can hear it (for example look for “Hitachi HGST 6TB DeskStar NAS HDN726060ALE610 IDLE NOISE”; you also can search for the random access noise).

Because of this sound I asked HGST’s support if there is something wrong with my disk. This then was the first time I heard of BMS. They said the klicking-sound comes from the active BMS doing its scan work and normally only should be there when the disk is in idle. But in my case both the 6 TB and the 5 TB version had this “hiccup” in idle AND when working. The latter – due to HGST – may (!) be a hint that something is not o.k. with the disk.

So I had do decide if my disk is o.k. and if I want this “hiccup” every round about 5 seconds. In my opinion it would be o.k. when the drive is in work anyhow. But in idle?

I have a big tower casing which has a fairly good noise isolation (I want a NAS drive in my desktop system because of the obvious higher reliability of these drives). To be honest, I have to concentrate to hear the klicking-sound of the BMS when the doors of my casing are closed. But it is there, and when you hear it it becomes annoying. May be (!) you don’t hear it when you are busy with your work.

I also tried the 4 TB version of the HGST NAS drives. I don’t know if they also have BMS. At least there was nothing to hear, so I gave the bigger versions back and kept the 4 TB, although the 4 TB has not the performance of the bigger versions (especially the 6 TB drive). And by the way, after having bad experiences with Seagate (crash of a ST3000DM001) and looking at the experiences Backblaze has with HGST (just goolge "Backblaze HGST") I will give HGST a try.

Another thing to mention is the temperature. In my closed big tower casing, without any special cooling of the drive and in a room with 19 degree Celsius the 5 TB version showed 40 degree Celsius in idle and 55 degree Celsius after half an hour of constant copy-work (I really tried to get the disk busy). I think the 6 TB version will surely not be cooler. The 4 TB version showed 52 degree Celsius. Due to HGST up to 60 degree Celsius are o.k. But anyhow: Theses drives seem to be a radiator in a desktop system, so that you may get additional noise by your fans which try to cool the system down. Although I have to admit that I don't know what other drives with 7200 rpm will have.

(Sorry by the way for my English, but I’m not a native speaker.)

Edited by DT-Driveseeker

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Yes, Hitachi has made the idle noise for many generations. I had an array with 10 of the 2tb Ultrastars and when idle the whole array would sound like a cricket farm.

I have not noticed that with the 6TB drives though.

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