Date: Fri, 4 Jan 2019 15:43:06 +0000 From: Dave B <g8kbvdave@googlemail.com> To: freebsd-questions@freebsd.org Subject: Re: freebsd-questions Digest, Vol 760, Issue 6 Message-ID: <00fa089b-d736-e535-6073-2fd48126121f@googlemail.com> In-Reply-To: <mailman.100.1546603202.23090.freebsd-questions@freebsd.org> References: <mailman.100.1546603202.23090.freebsd-questions@freebsd.org>
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Remember to backup the RAID contents, if not already done and you want/need to preserve the data, as I'll put money on it, that the existing contents will be lost when you re-initialize the drives with a different software RAID system (aka by ZFS) than is in use at this time by the BIOS or other software.. Take care. Have to ask, if, IF the BIOS is handling the existing RAID itself, why can't FreeBSD handle the result just like a single drive? Of course, if some tool/driver loaded at boot time by the old OS is doing it, then it's toast in any case. It's worth checking if it's a plug in disc controller that is doing the RAID functionality, if so, then "It's own BIOS" will be handling it, and FreeBSD should just see the one logical drive. That's what happened with Nas4Free (FreeBSD based) when we put on an old HP server at work a few years ago. The original content data was still lost though. (Not an issue that time!) Regards. Dave B. ------------------------------------------------------------------------ On 04/01/2019 12:00, freebsd-questions-request@freebsd.org wrote: > On 03/01/2019 11:05, Carmel NY wrote: >> That doesn't answer my question. I wanted to know if when I first >> install FreeBSD 12, and choose ZFS as the file system, will it >> recognize the three drives and set them up by default as a RAIDZ (RAID5 >> or do I have to do that manually after FreeBSD is installed? > > You will need to go into your server BIOS and delete the existing RAID > configuration. The installer will then see all three drives, and you > can tell it to create a RAIDZ over all three of them. > > Cheers, > > Matthew -- Created on and sent from a Unix like PC running and using free and open source software:
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