# [OmniOS-discuss] HGST 7K6000 for a RAIDZ2 pool

Tobias Oetiker tobi at oetiker.ch
Thu Feb 26 08:37:34 UTC 2015

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    Today Tobias Oetiker wrote:

    > Hi Marts,
    >
    > Yesterday Warren Marts wrote:
    >
    > > At some point sourcing true 512 B/sector disks will get more difficult and
    > > expensive - unless you knew this filesystem is likely to see lots of small
    > > writes and performance or space efficiency are critical I'd lean to the 4KB
    > > sector disks.
    >
    > Amazingly, the new He6 drives from HGST only seem to exist in an
    > 512n variant ... while the also new He8 drives only come in 4Kn and
    > 512e types ...

    also while on the subject, there is

    https://github.com/zfsonlinux/zfs/issues/548
    https://github.com/zfsonlinux/zfs/issues/1807

    which would indicate that using 512n is probably a better choice in
    an environment where we are using zvol a lot

    cheers
    tobi

    >
    >
    > > On Wed, Feb 25, 2015 at 4:39 PM, Richard Elling <
    > > richard.elling at richardelling.com> wrote:
    > >
    > > >
    > > > > On Feb 25, 2015, at 3:17 PM, Tobias Oetiker <tobi at oetiker.ch> wrote:
    > > > >
    > > > > experts!
    > > > >
    > > > > If you were to buy 6TB disks for a RAIDZ2 Pool, would you go for
    > > > > 512n like in the olden days, or use the new 4Kn.
    > > > >
    > > > > I know ZFS can deal with both ...
    > > > >
    > > > > So what would be your choice, and WHY?
    > > >
    > > > Better yet, what would be your requirements, then your choice, then why?
    > > >  -- richard
    > > >
    > > > >
    > > > > cheers
    > > > > tobi
    > > > >
    > > > > --
    > > > > Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
    > > > > www.oetiker.ch tobi at oetiker.ch +41 62 775 9902
    > > > >
    > > > > _______________________________________________
    > > > > OmniOS-discuss mailing list
    > > > > OmniOS-discuss at lists.omniti.com
    > > > > http://lists.omniti.com/mailman/listinfo/omnios-discuss
    > > >
    > > > _______________________________________________
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    > >
    >
    >

    --
    Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
    www.oetiker.ch tobi at oetiker.ch +41 62 775 9902

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