Date: Tue, 23 May 2017 14:03:08 -0400 From: mtiger <mtiger090@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: ZFS root on single SSD? Message-ID: <9f2aef3b-5c7f-858a-2769-48cb150825a0@gmail.com> In-Reply-To: <CALfReyfOpH4KDp3isSpfT72AD9Maez_VcPEJodvYrHYLfuhp-w@mail.gmail.com> References: <CAEsW2o88qA_YGxHC%2B5nWsi90yJfXKkCSV7tACstK6_hLNgu4HQ@mail.gmail.com> <CALfReyfjn%2BRBUMeM7sjPDsv_jWE2taFkBv1wgsK00YALJv=PYg@mail.gmail.com> <CAEsW2o8H6e_CUErgrcVuaVpszWcru%2BDfJbHfCUnQTH%2BtwXUSZg@mail.gmail.com> <CALfReyfOpH4KDp3isSpfT72AD9Maez_VcPEJodvYrHYLfuhp-w@mail.gmail.com>
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I have a similar situation. I have a nice ssd i am using through a usb port. I can't install this ssd internally because there are no free sata ports nor mounting slots. I would like to use ZFS on it, but I can't get it to boot using the ZFS options from the installer. I'm trying to use version 11 memstick image of the FreeBSD installer. Now if I leave the install media (on a usb flash drive) connected I can boot the drive setup as ZFS no problem. If i remove the install media and try to boot I get an error telling me it can't mount root. Power the system on and off and the problem is still the same. If I do the same installation and select UFS everything works fine every time no matter what usb devices I'm using or have connected. I've tried this on several machines but always with the same result. I've also had the same result using usb external hard drives. I've been through the handbook time and time again. I also get the same problem if I install TrueOS which is using 12-Current. As long as the install media is still connected it will boot the other drive setup for ZFS. If I disconnect the install flash drive it will not boot. Is there a manual installation process documented that would allow me to boot ZFS from a usb drive or am I missing something using the standard installer? Thanks in advance, Jim On 5/22/2017 2:26 AM, Aaron wrote: > Yea, pretty much this. Don't need the same level of availability. Worst > case, I'm a bit annoyed and rebuild the OS and restore the configs from > backup. Now I just need to figure out jails and bhyve for the services > since I haven't worked with either before There's a couple of bhyve > front ends I've been looking at, sorta on the fence for which one. Really I > just need to pick one and run with it. > > --Aaron > > On Thu, May 18, 2017 at 5:05 AM, krad <kraduk@gmail.com> wrote: > >> The big question is what availability do you need on this server? As its a >> home system I guess not as much as say an enterprise one. Therefore I would >> imagine all the benefits of manageability that come with zfs will out weigh >> the downside, even if running on a single volume. Boot environments are a >> really big thing to safe guard yourself during upgrade time. Although in >> theory you could do something with ufs its never going to be as good as >> with zfs. Also remember mirroring isnt backup, mirroring is about >> availability. Therefore live with a single drive, but backup the contents >> regularly. >> >> On 16 May 2017 at 06:45, Aaron <drizzt321@gmail.com> wrote: >> >>> So, I've been running ZFS root mirror across 2 spinning disks, and I'm >>> upgrading my home server/nas and planning on running root on a spare SSD. >>> However, I'm unsure if it'd be better to run UFS as a single drive root >>> instead of ZFS, although I do love all of the ZFS features (snapshots, >>> COW, >>> scrubbing, etc) and would still like to keep that for my root drive, even >>> if I'm not mirroring at all. I do notice that FreeBSD has TRIM support for >>> ZFS (see http://open-zfs.org/wiki/Features#TRIM_Support). >>> >>> So is there a good reason NOT to run ZFS root on a single drive SSD? >>> >>> --Aaron >>> _______________________________________________ >>> freebsd-questions@freebsd.org mailing list >>> https://lists.freebsd.org/mailman/listinfo/freebsd-questions >>> To unsubscribe, send any mail to "freebsd-questions-unsubscribe >>> @freebsd.org" >>> >> > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" On 5/22/2017 4:55 PM, krad wrote: > stay with jails as much as you can, as they will be more stable and far > more lightwieght > > On 22 May 2017 at 07:26, Aaron <drizzt321@gmail.com> wrote: > >> Yea, pretty much this. Don't need the same level of availability. Worst >> case, I'm a bit annoyed and rebuild the OS and restore the configs from >> backup. Now I just need to figure out jails and bhyve for the services >> since I haven't worked with either before :) There's a couple of bhyve >> front ends I've been looking at, sorta on the fence for which one. Really I >> just need to pick one and run with it. >> >> --Aaron >> >> On Thu, May 18, 2017 at 5:05 AM, krad <kraduk@gmail.com> wrote: >> >>> The big question is what availability do you need on this server? As its >> a >>> home system I guess not as much as say an enterprise one. Therefore I >> would >>> imagine all the benefits of manageability that come with zfs will out >> weigh >>> the downside, even if running on a single volume. Boot environments are a >>> really big thing to safe guard yourself during upgrade time. Although in >>> theory you could do something with ufs its never going to be as good as >>> with zfs. Also remember mirroring isnt backup, mirroring is about >>> availability. Therefore live with a single drive, but backup the contents >>> regularly. >>> >>> On 16 May 2017 at 06:45, Aaron <drizzt321@gmail.com> wrote: >>> >>>> So, I've been running ZFS root mirror across 2 spinning disks, and I'm >>>> upgrading my home server/nas and planning on running root on a spare >> SSD. >>>> However, I'm unsure if it'd be better to run UFS as a single drive root >>>> instead of ZFS, although I do love all of the ZFS features (snapshots, >>>> COW, >>>> scrubbing, etc) and would still like to keep that for my root drive, >> even >>>> if I'm not mirroring at all. I do notice that FreeBSD has TRIM support >> for >>>> ZFS (see http://open-zfs.org/wiki/Features#TRIM_Support). >>>> >>>> So is there a good reason NOT to run ZFS root on a single drive SSD? >>>> >>>> --Aaron >>>> _______________________________________________ >>>> freebsd-questions@freebsd.org mailing list >>>> https://lists.freebsd.org/mailman/listinfo/freebsd-questions >>>> To unsubscribe, send any mail to "freebsd-questions-unsubscribe >>>> @freebsd.org" >>>> >>> >> _______________________________________________ >> freebsd-questions@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-questions >> To unsubscribe, send any mail to "freebsd-questions- >> unsubscribe@freebsd.org" >> > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"
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