Date: Wed, 2 Jan 2019 20:11:33 -0500 From: David Schwartz <dschwartz783.freebsd@gmail.com> To: Polytropon <freebsd@edvax.de> Cc: freebsd-questions@freebsd.org Subject: Re: Installing FreeBSD on HP Computer that is using software RAID 5 Message-ID: <53FB6D40-11AB-460A-998B-01EF0E655687@gmail.com> In-Reply-To: <20190102222619.c63f20f0.freebsd@edvax.de> References: <SN1PR20MB2109CC11BEFFA9383FDCA406808C0@SN1PR20MB2109.namprd20.prod.outlook.com> <20190102222619.c63f20f0.freebsd@edvax.de>
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Hi, first post. Howdy y=E2=80=99all. I definitely agree with this. ZFS cannot work properly if it isn=E2=80=99t= aware of the fact that it=E2=80=99s running a RAID. In order to take = advantage of bit-rot protection (unless you want to use copies=3D2), you = need to have ZFS construct the array. > On Jan 2, 2019, at 16:26, Polytropon <freebsd@edvax.de> wrote: >=20 > On Wed, 2 Jan 2019 11:06:33 +0000, Carmel NY wrote: >> Three SATA drives, 1,863 GB each, configured into a RAID 5 with 3,762 >> total GB >>=20 >> This is a software RAID, Intel Rapid Storage Technology 16.5.1.1030 >>=20 >> I have included the full information at the end. The system is >> presently running Win 10 PRO just fine. I want to convert it to a >> FreeBSD 12 system. If I install FreeBSD 12 amd64 utilizing ZFS, will = it >> recognize the drives and set them up correctly or will I have to do >> something manually? I want to keep the RAID setup and not use the >> drives individually. >=20 > Is there a reason you don't want to use ZFS's native RAID > features? It's commonly suggested to not rely on software > RAID and instead let ZFS manage the drives. You can construct > the same RAID setups with ZFS as you can with the controller, > and as you're going to scratch the existing content anyway, > there is no need to preserve anything of the previous layout. >=20 > More information here: >=20 > http://www.zfsbuild.com/2010/05/26/zfs-raid-levels/ >=20 > https://en.wikipedia.org/wiki/ZFS#RAID-Z >=20 >=20 >=20 > --=20 > 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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