Date: Fri, 17 Sep 2004 19:07:13 +0200 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Pawel Jakub Dawidek <pjd@FreeBSD.org> Cc: Ceri Davies <ceri@submonkey.net> Subject: Re: cvs commit: src/sys/sys mdioctl.h src/sys/dev/md md.c src/sbin/mdconfig Makefile mdconfig.8 mdconfig.c Message-ID: <99237.1095440833@critter.freebsd.dk> In-Reply-To: Your message of "Fri, 17 Sep 2004 19:03:02 %2B0200." <20040917170302.GT30151@darkness.comp.waw.pl>
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In message <20040917170302.GT30151@darkness.comp.waw.pl>, Pawel Jakub Dawidek w rites: > >--DvGWlh9FZfLEyBcv >Content-Type: text/plain; charset=iso-8859-2 >Content-Disposition: inline >Content-Transfer-Encoding: quoted-printable > >On Fri, Sep 17, 2004 at 10:29:47AM -0600, Scott Long wrote: >+> >Uhm, be aware that we are limited also to the size of individual >+> >swap disks. 31 bits of bytes/sectors/pages, not quite sure which. >+> > >+>=20 >+> 32 bits of pages, unless there is somewhere in the chain that the=20 >+> unsigned nature of the word is not being honored. > >Pages. It gives as maximum swap-backed device of 16TB. I tested it with >~15TB devices, so there is no signed/unsigned problem (which will limit >us to 8TB). Of course you can always (I hope) increase page size:) I belive there is a limit both for the total swapspce (16TB sounds likely) but also a limit for each swapdevice as far as I know. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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