Date: Fri, 07 Dec 2001 17:01:14 +0200 From: Sheldon Hearn <sheldonh@starjuice.net> To: Bob Bishop <rb@gid.co.uk> Cc: Kirk McKusick <mckusick@beastie.mckusick.com>, freebsd-arch@FreeBSD.ORG, Matthew Dillon <dillon@apollo.backplane.com> Subject: Re: Using a larger block size on large filesystems Message-ID: <33008.1007737274@axl.seasidesoftware.co.za> In-Reply-To: Your message of "Fri, 07 Dec 2001 16:15:36 %2B0200." <32520.1007734536@axl.seasidesoftware.co.za>
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On Fri, 07 Dec 2001 16:15:36 +0200, Sheldon Hearn wrote: > Okay, in that case, the threshold needs to be 196MB, from which size > upward we're guaranteed of at least one backup superblock. > > I'll get cracking on making the new defaults size-sensitive and post > back my modified patchset when I'm done. Yuk. :-( This really shouldn't be size-sensitive. It should be sensitive to the number of cylinder groups. The problem is that ncpg is calculated in mkfs.c, but we need it in newfs.c when we decide whether defaulting to 16384/2048 is going to be okay. :-( Ciao, Sheldon. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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