Date: Wed, 25 Feb 2015 08:57:03 -0600 From: Mark Felder <feld@FreeBSD.org> To: freebsd-fs@freebsd.org Subject: Re: Zoned Commands ZBS/ZAC, Shingled SMR/SFS, ZFS Message-ID: <1424876223.3248960.232271733.32363554@webmail.messagingengine.com> In-Reply-To: <CAD2Ti2-ZWG2paJojWGnj-aNOf68aocmKRn6gpsS%2BDPD%2BFHwr_Q@mail.gmail.com> References: <CAD2Ti2-ZWG2paJojWGnj-aNOf68aocmKRn6gpsS%2BDPD%2BFHwr_Q@mail.gmail.com>
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On Fri, Feb 20, 2015, at 14:15, grarpamp wrote: > These may be of interest for possible integration... > Do I understand the scope of this correctly: - SMR drives are the future for increasing drive capacity - SMR drives are terrible at random IO - There is work in Linux to detect these SMR drives and alter ZFS' behavior Is that correct? If so, it's interesting... but sort of annoying that we are basically creating quirks and a wildly different codepath because the drive manufacturers haven't figured out another way to increase density and keep expected behavior.
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