Date: Thu, 16 Jul 2009 13:30:23 +0200 From: Dimitry Andric <dimitry@andric.com> To: Harald Schmalzbauer <h.schmalzbauer@omnilan.de> Cc: freebsd-current@freebsd.org, Ivan Voras <ivoras@freebsd.org> Subject: Re: gmirror provider name limit [Was: Re: geom_label: gpt/labelname for gmirror provider?] Message-ID: <4A5F0F4F.5060505@andric.com> In-Reply-To: <4A5EDA14.8000703@omnilan.de> References: <4A5CB2D1.5070106@omnilan.de> <h3iegi$kpu$1@ger.gmane.org> <4A5CC981.8010000@omnilan.de> <4A5EDA14.8000703@omnilan.de>
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On 2009-07-16 09:43, Harald Schmalzbauer wrote: > I found that the name of the provider for gmirror mustn't exceed 15 > characters. `gmirror` doesn't complain if you specify a provider name > longer that 15 characters, but the mirror won't be detected. > So for example it's impossible to use gptid as provider. > At least this should be documented in the man page(es, I guess this > restriction applies to graid3 etc. also) As far as I can see, this limit applies to gconcat, gjournal, gmirror, graid3, gshsec and gstripe: sys/geom/concat/g_concat.h:96: char md_provider[16]; /* Hardcoded provider. */ sys/geom/journal/g_journal.h:292: char md_provider[16]; /* Hardcoded provider. */ sys/geom/mirror/g_mirror.h:250: char md_provider[16]; /* Hardcoded provider. */ sys/geom/raid3/g_raid3.h:281: char md_provider[16]; /* Hardcoded provider. */ sys/geom/shsec/g_shsec.h:88: char md_provider[16]; /* Hardcoded provider. */ sys/geom/stripe/g_stripe.h:91: char md_provider[16]; /* Hardcoded provider. */
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