Date: Sat, 21 Aug 1999 18:25:45 +0100 From: Mark Ovens <mark@ukug.uk.freebsd.org> To: Alejandro Ramirez <ales@megared.net.mx> Cc: Albert Everett <aeverett@webintl.com>, questions@freebsd.org Subject: Re: maximum file size Message-ID: <19990821182544.A451@marder-1> In-Reply-To: <02ce01beebf5$99d2da80$d4630a0a@megared.net.mx>; from Alejandro Ramirez on Sat, Aug 21, 1999 at 11:52:48AM -0500 References: <37BEB44E.29ED2CD4@webintl.com> <19990821153112.E267@marder-1> <02ce01beebf5$99d2da80$d4630a0a@megared.net.mx>
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On Sat, Aug 21, 1999 at 11:52:48AM -0500, Alejandro Ramirez wrote: > Hi, > > How can I know the size of the blocks I'm using in my system??? (FreeBSD > 3.2 Release) > The default block-size is 8kB, so if you let sysinstall newfs your disks then that's what it'll be. dumpfs(8) is the only way that I know (but there are probably several other ways) of finding the block-size of an existing fs. The disk must be umounted for dumpfs to work which makes checking the root fs a bit difficult :-) > Thanks > > Ales > > ----- Original Message ----- > From: Mark Ovens <mark@dogma.freebsd-uk.eu.org> > To: Albert Everett <aeverett@webintl.com> > Cc: <questions@FreeBSD.ORG> > Sent: Saturday, August 21, 1999 9:31 AM > Subject: Re: maximum file size > > > > On Sat, Aug 21, 1999 at 09:14:39AM -0500, Albert Everett wrote: > > > Hopefully this will be a trivial question, but I haven't found the > answer yet > > > online or in Greg's FreeBSD book. > > > > > > How large can a file be under FreeBSD? I've heard that under Linux the > size > > > limit is 2gb. > > > > > > It's not difficult to imagine large log files resulting from a busy web > site, > > > but most documentation seems to be focused on minimums rather than > maximums. > > > > > > > According to the FAQ >4TB: > > > > 2.27. What are the limits for ffs file-systems? > > > > For ffs file-systems, the maximum theoretical limit is 8 tera-bytes > > (2G blocks), or 16TB for the default block size of 8K. In practice, > > there is a soft limit of 1 tera-byte, but with modifications > > file-systems with 4 tera-bytes are possible (and exist). > > > > The maximum size of a single ffs file is approximately 1G blocks > > (4TB) if the block size is 4K. > > > > maxfilesize > > ---------------------------------- > > 2.2.7 3.0 > > fs block size -stable -current works should-work > > ------------- ------- -------- ----- ----------- > > 4K 4T-1 4T-1 4T-1 4+T > > 8K 32+G 8T-1 32+G 16T-1 > > 16K 128+G 16T-1 128+G 32T-1 > > 32K 512+G 32T-1 512+G 64T-1 > > 64K 2048+G 64T-1 2048+G 128T-1 > > > > > Albert Everett > > > aeverett@webintl.com > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > with "unsubscribe freebsd-questions" in the body of the message > > > > > > > -- > > STATE-OF-THE-ART: Any computer you can't afford. > > OBSOLETE: Any computer you own. > > ________________________________________________________________ > > FreeBSD - The Power To Serve http://www.freebsd.org > > My Webpage http://http://ukug.uk.freebsd.org/~mark/ > > mailto:mark@ukug.uk.freebsd.org http://www.radan.com > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-questions" in the body of the message > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > -- STATE-OF-THE-ART: Any computer you can't afford. OBSOLETE: Any computer you own. ________________________________________________________________ FreeBSD - The Power To Serve http://www.freebsd.org My Webpage http://ukug.uk.freebsd.org/~mark/ mailto:mark@ukug.uk.freebsd.org http://www.radan.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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