Date: Sat, 02 Jun 2012 21:19:38 -0700 From: Randy Bush <randy@psg.com> To: kpneal@pobox.com Cc: FreeBSD FS <freebsd-fs@freebsd.org> Subject: Re: hptrr disk labeling Message-ID: <m2txythvs5.wl%randy@psg.com> In-Reply-To: <20120601033945.GA37797@neutralgood.org> References: <m2pq9kq6eo.wl%randy@psg.com> <20120601033945.GA37797@neutralgood.org>
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>> i have an hptrr controller with 12-16 2tb satas on it. a picture >> before i started cleaning up some disk failures. >> >> NAME STATE READ WRITE CKSUM >> tank ONLINE 0 0 0 >> mirror ONLINE 0 0 0 >> label/m00-d01 ONLINE 0 0 0 >> label/m00-d00 ONLINE 0 0 0 >> mirror ONLINE 0 0 0 >> label/m01-d00 ONLINE 0 0 0 >> label/m01-d01 ONLINE 0 0 0 >> >> the reason i used glabels was because when the system boots or the >> controller rescans, it assigns da0 to the first drive it finds alive on >> the controller, da1 to the second, etc. >> >> this means that drive addition or removal changes the daX numbering. >> >> so the labels are so that zfs can find its ass when assembling the >> array. > > Can you use GPT for partitioning? Put a single partition on each disk and > set the GPT label (which is not the glabel). See gpart's add and modify > subcommands. > > NAME STATE READ WRITE CKSUM > gs1p ONLINE 0 0 0 > mirror ONLINE 0 0 0 > gpt/CONST_2-9XE02KPK-zfs ONLINE 0 0 0 > gpt/SAVVIO-6XQ10F80-zfs ONLINE 0 0 0 > gpt/SAVVIO-6XQ103C7-zfs ONLINE 0 0 0 ok. sure i could do that. but what's the win? randy
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