Date: Tue, 16 May 2017 14:04:16 -0700 From: Aaron <drizzt321@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: ZFS root on single SSD? Message-ID: <CAEsW2o_YaJY15HGpjR-jtuD65ybeY6ZHbjhzEw%2BC8RMFe0UJzg@mail.gmail.com> In-Reply-To: <20170516132355.e7346f50.freebsd@edvax.de> References: <CAEsW2o88qA_YGxHC%2B5nWsi90yJfXKkCSV7tACstK6_hLNgu4HQ@mail.gmail.com> <99fa2537-9fb1-0ccf-d906-39db1c2e2685@FreeBSD.org> <9997fd01-273c-b176-b9ed-e33e9e2d1b2f@ohlste.in> <20170516132355.e7346f50.freebsd@edvax.de>
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LOL, well, this is my home system, and but I do recognize that RAID !=3D backup (have CrashPlan for that), and even mirror can fail on a rebuild. I was just trying to gauge if it was an actual bad idea, or just a "meh, whatever dude, probably won't hurt". @Matt Usage pattern will be basically general system processes, and quite possibly several bhyve VMs, things like CrashPlan (stupid lack of FreeBSD support) and a few game server VMs, although for the games I'll almost certainly have the data hosted via shares onto my ZFS array which is my primary data storage. System resources...I've got 12C/24T, 72GB RDIMM memory. It'll be fine. I've actually been running zroot mirror & raidz array with 12GB memory and an old Athlon II dual core. So should be fine. I can swap out some 4GB dimms for 8GB dimms if I need more memory. Data security, that's where I'd like ZFS for, for the checksumming & such, even though I won't get drive failure protection. Still, I've had the SSD running and in use on a different machine for a while, so if it was going to just have a controller failure or something it would have had it by now, so should be fine. And I'll backup configs & such just in case anyway. --Aaron On Tue, May 16, 2017 at 4:23 AM, Polytropon <freebsd@edvax.de> wrote: > On Tue, 16 May 2017 06:34:38 -0400, jim@ohlste.in wrote: > > I'd add only that while a mirrored zpool offers some data protection, i= t > > is *not* an effective "backup" solution for important data. Drive > > failure during resilver after a drive replacement does occur. If there'= s > > important data on the drive, backing it up to a different medium is > > still essential, whether it's a mirrored pool or a single drive pool. > > [Leaned once the hard way]=E2=84=A2 > > Relatesd typical CTO or IT superior management or executive > statement: "We don't need backup, we have RAID!" ;-) > > > -- > Polytropon > Magdeburg, Germany > Happy FreeBSD user since 4.0 > Andra moi ennepe, Mousa, ... > _______________________________________________ > 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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