Date: 24 Feb 2002 17:31:02 +0000 From: Harry Newton <harry_newton@telinco.co.uk> To: freebsd-stable@freebsd.org Subject: newfs frag & block sizes Message-ID: <86u1s6iy7k.fsf@basilisk.locus>
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I've just been rebuilding some of my filesystems, and noticed that the fragment size : block size ratio isn't the recommended ( in newfs(8) ) 1:8. Disklabel gives: 8 partitions: # size offset fstype [fsize bsize bps/cpg] a: 262144 0 4.2BSD 8192 16384 290 # (Cyl. 0 - 16*) b: 1048576 262144 swap # (Cyl. 16*- 81*) c: 17928477 0 unused 0 0 # (Cyl. 0 - 1115*) d: 2097152 1310720 4.2BSD 8192 16384 261 # (Cyl. 81*- 212*) e: 2097152 3407872 4.2BSD 1024 8192 22 # (Cyl. 212*- 342*) f: 4194304 5505024 4.2BSD 8192 16384 261 # (Cyl. 342*- 603*) g: 8229149 9699328 4.2BSD 8192 16384 262 # (Cyl. 603*- 1115*) ( e has been rebuilt again with the -f and -b flags ). FreeBSD basilisk.locus 4.5-STABLE FreeBSD 4.5-STABLE #0: Fri Feb 22 20:20:52 GMT 2002 root@basilisk.locus:/usr/obj/usr/src/sys/BASILISK i386 Is there a reason for this ? - Harry -- Harry Newton harry_newton at telinco.co.uk www.gaudeamus.telinco.co.uk/html/gpg.html To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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