Date: Sat, 13 Feb 2010 22:04:31 +0200 From: Dan Naumov <dan.naumov@gmail.com> To: freebsd-questions@freebsd.org, freebsd-fs@freebsd.org, FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: booting off a ZFS pool consisting of multiple striped mirror vdevs Message-ID: <cf9b1ee01002131204h770aae12mf54adea6120cf414@mail.gmail.com>
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Hello I have succesfully tested and used a "full ZFS install" of FreeBSD 8.0 on both single disk and mirror disk configurations using both MBR and GPT partitioning. AFAIK, with the more recent -CURRENT and -STABLE it is also possible to boot off a root filesystem located on raidz/raidz2 pools. But what about booting off pools consisting of multiple striped mirror or raidz vdevs? Like this: Assume each disk looks like a half of a traditional ZFS mirror root configuration using GPT 1: freebsd-boot 2: freebsd-swap 3: freebsd-zfs |disk1+disk2| + |disk3+disk4| + |disk5+disk6| My logic tells me that while booting off any of the 6 disks, boot0 and boot1 stage should obviously work fine, but what about the boot2 stage? Can it properly handle booting off a root filesystem thats striped across 3 mirror vdevs or is booting off a single mirror vdev the best that one can do right now? - Sincerely, Dan Naumov
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