Date: Mon, 28 Jan 2013 21:37:16 -0500 From: "Thomas Mueller" <mueller6724@bellsouth.net> To: freebsd-questions@freebsd.org Cc: Volodymyr Kostyrko <c.kworr@gmail.com> Subject: Re: ZFS - whole disk or partition or BSD slice? Message-ID: <05.C7.10746.CD537015@smtp02.insight.synacor.com>
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28.01.2013 01:57, james: >I have a 9.1 system with some SATA disks in RAIDZ, upgraded from 9.0. > >The disks are all the same type, and I formatted them for FreeBSD and >put ZFS in a slice covering most of them. > >I have seen suggestions for OpenIndiana etc that it is better to let ZFS >have the whole raw disk and that this can control the way it manages the >disk writeback mode. Responses from Vladimir Kostyrko ^ : ^ My home computer is set up in the dedicated mode. No grave difference. ^ Not even a scratch. >Does this apply to FreeBSD and ZFS too? ^ No. >Presumably the disks are currently FreeBSD-specific. If I used raw >disks instead of slices, could I read them from a Solaris system too? ^ I'm mostly sure you would be able to read disks from Solaris/x86. ^ However Solaris/Sparc uses another labeling scheme. If you want to be ^ fully compatible with other system GPT is a better choice. Is GPT compatible with Solaris, can Solaris access a GPT disk? I tried OpenIndiana installable live USB stick, and my Western Digital Caviar Green 3 TB hard disk, partitioned with GPT, was not recognized or readable; same was true for Western Digital My Book Essential 3 TB USB 3.0 hard disk, also partitioned GPT. This was on amd64 system. Tom
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