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Date:      Mon, 6 May 2019 11:24:35 +0200
From:      "Patrick M. Hausen" <hausen@punkt.de>
To:        Michelle Sullivan <michelle@sorbs.net>
Cc:        Karl Denninger <karl@denninger.net>, freebsd-stable@freebsd.org
Subject:   Re: ZFS...
Message-ID:  <FB24B69C-D4D0-4518-B408-F6449521CEF6@punkt.de>
In-Reply-To: <A7928311-8F51-4C72-839C-C9C2BA62C66E@sorbs.net>
References:  <30506b3d-64fb-b327-94ae-d9da522f3a48@sorbs.net> <CAOtMX2gf3AZr1-QOX_6yYQoqE-H%2B8MjOWc=eK1tcwt5M3dCzdw@mail.gmail.com> <56833732-2945-4BD3-95A6-7AF55AB87674@sorbs.net> <3d0f6436-f3d7-6fee-ed81-a24d44223f2f@netfence.it> <17B373DA-4AFC-4D25-B776-0D0DED98B320@sorbs.net> <70fac2fe3f23f85dd442d93ffea368e1@ultra-secure.de> <70C87D93-D1F9-458E-9723-19F9777E6F12@sorbs.net> <CAGMYy3tYqvrKgk2c==WTwrH03uTN1xQifPRNxXccMsRE1spaRA@mail.gmail.com> <5ED8BADE-7B2C-4B73-93BC-70739911C5E3@sorbs.net> <d0118f7e-7cfc-8bf1-308c-823bce088039@denninger.net> <2e4941bf-999a-7f16-f4fe-1a520f2187c0@sorbs.net> <CAOtMX2gOwwZuGft2vPpR-LmTpMVRy6hM_dYy9cNiw%2Bg1kDYpXg@mail.gmail.com> <34539589-162B-4891-A68F-88F879B59650@sorbs.net> <CAOtMX2iB7xJszO8nT_KU%2BrFuSkTyiraMHddz1fVooe23bEZguA@mail.gmail.com> <576857a5-a5ab-eeb8-2391-992159d9c4f2@denninger.net> <A7928311-8F51-4C72-839C-C9C2BA62C66E@sorbs.net>

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Hi!

> Am 01.05.2019 um 02:14 schrieb Michelle Sullivan <michelle@sorbs.net>:
> And the irony is the FreeBSD policy to default to zfs on new installs using the complete drive.. even when there is only one disk available and regardless of the cpu or ram class...  with one usb stick I have around here it attempted to use zfs on one of my laptops.

But *any* filesystem other than ZFS on a single disk and non-ECC memory is worse!

So what’s gained by defaulting back to UFS in these cases?

There’s the edge case of embedded/very low memory systems but people who
build these probably know what they are doing? And of course I use UFS in VMs
running on a host with ZFS … depending on whether I need the snapshot/replication
features in the guest or not.

Kind regards,
Patrick
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