2.5" 2TB drives for NAS use

Discussion in 'NAS Systems and Networked Home and SMB Software' started by Helzy, Oct 19, 2017.

  1. Helzy

    Helzy New Member

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    Greetings all,

    Seagate is not making any 2.5" Ironwolf drives currently and I was wondering about replacing a batch of four WD Blue 2.5" 5400 RPM drives in a NAS enclosure (Qnap SS-839 Pro) with these new 2TB Seagate ST2000LM015 drives. I have multiple WD Red 2.5" wd10jfcx drives, but they top out at 1TB. The Barracudas have a similar pricepoint for the 2TB model. Wondering if anyone has tried them or can point to a review of them in NAS use as my google-fu seems to be escaping me at them moment.

    Thanks!
     
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  2. whitey

    whitey Moderator

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    Many of us here took this route for 2.5 capacity drives (WARNING, shucking involved). There is a lengthy thread around here as well, let me grab it for you.

    Seagate Backup Plus 4TB Drive - Cheap 2.5" 4TB drives

    I have 6 I am always beating on in a ZFS raidz2, good nuff' and double the capacity of the drives you are looking at for $20 more roughly each drive than the ones you listed.

    https://www.amazon.com/Seagate-Expa...8492944&sr=8-2&keywords=seagate+expansion+4tb

    https://www.amazon.com/Seagate-Back...92922&sr=8-3&keywords=seagate+backup+plus+4tb
     
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  3. Evan

    Evan Well-Known Member

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    Or better yet the 5tb Seagate drives. (Shucked of course).
    There is some people who are saying the 5tb is better than the 4tb drives. Not sure if everybody agrees but just putting it out there (I have not 4tb drives and only 5tb and so far all good)
     
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  4. whitey

    whitey Moderator

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    Link, these same backup plus or expansion drives just larger?
     
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  5. Joel

    Joel Active Member

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    5tbs are the same model of backup plus. I have two of the 4tb versions and no complaints except that they're kinda slow. Mine are still in the enclosures though.

    I also have a 2tb slim inside my laptop alongside a Samsung PM951 NVME. The seek noises are kinda loud actually. I've been wondering for quite a while why WD hasn't come out with a 2tb 2.5 Red. Also of note, the Seagate model used to be called the Samsung M9T.
     
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  6. Helzy

    Helzy New Member

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    Interesting, tried to google this and coming up empty, is there a post or some information you can point me to about the spinpoints being rebranded Barracuda?

    Thanks!
     
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  7. Joel

    Joel Active Member

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    #7
  8. SDLeary

    SDLeary New Member

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    Watch out for the backup drives, depending on what you want your NAS to do. They are good for cold-ish storage, but not hammering them (random writes).

    Many of the newer ones are SMR (shingled magnetic recording) rather than PMR, and they do poorly with lots of small writes.

    SDLeary
     
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  9. Joel

    Joel Active Member

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    True statement. I learned the 4tb Seagates I have are SMR. I had an idea to make an array of them; good thing I didn't.
     
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  10. sth

    sth Active Member

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    Did Seagate actually transition the ST4000LM016 from PMR to SMR sometime in its lifecycle or were there both PMR & SMR in the market simultaneously from the start? And how do I verify if the ones I have are PMR or SMR?
     
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  11. Joel

    Joel Active Member

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    #11
  12. sth

    sth Active Member

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    I saw varied performance of a RAIDZ2 array under FreeBSD, Linux and Solarish which I wondered if this was contributing to the SMR/PMR perspective. Under FreeBSD/FreeNAS they were terrible, under Linux (Ubuntu) they were ok and under Solarish (OmniOS/napp-it) they are decent enough for media storage (circa 1GB/s write & 2GB/s reads from 24 drives in 4 * 6 disk RZ2) although I wouldn't recommend them for high random-IO workloads still.
     
    #12
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