Date: Fri, 17 Mar 2017 16:48:59 +0000 From: RW <rwmaillists@googlemail.com> To: freebsd-questions@freebsd.org Subject: Re: bootable ext. USB SSD for backup Message-ID: <20170317164859.533e5834@gumby.homeunix.com> In-Reply-To: <20170316194612.GA1748@c720-r314251> References: <20170316194612.GA1748@c720-r314251>
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On Thu, 16 Mar 2017 20:46:12 +0100 Matthias Apitz wrote: > Hello, > > I have acquired a small and flat USB 3.0 external disk (must be SSD > for the size of the case): > da0: 40.000MB/s transfers That looks like you're USB 2.0. If it really is an SSD it should be able to read at about 10 times that. > Ofc it has not the promised 1 TB volume, just only 953869 MB, i.e. > only 1 Marketing-TB; It's more of an engineering thing. The misuse of SI multipliers is an abomination that's usually been avoided, except where it's very convenient, and that's mainly for RAM. > I'm thinking in re-partitioning the disk (which is actual only one big > NTFS slice) with gpart(8), install even a kernel into a small FS at > the beginning and keep the rest as a big UFS for backups. Having it > bootable with a system could be handy if one has to rescue a system > and restore the last dunp. I wouldn't, you can run into annoying problems with the BIOS booting the wrong drive. You can make a bootable thumbdrive or live CD/DVD for emergencies.
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