From owner-freebsd-questions Thu Mar 29 13:27:23 2001 Delivered-To: freebsd-questions@freebsd.org Received: from obsecurity.dyndns.org (adsl-63-207-60-50.dsl.lsan03.pacbell.net [63.207.60.50]) by hub.freebsd.org (Postfix) with ESMTP id EE83837B71E for ; Thu, 29 Mar 2001 13:27:19 -0800 (PST) (envelope-from kris@obsecurity.org) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id AF50666B41; Thu, 29 Mar 2001 13:27:19 -0800 (PST) Date: Thu, 29 Mar 2001 13:27:19 -0800 From: Kris Kennaway To: Hal Weaver Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Slow, noisey hard drive activity Message-ID: <20010329132719.B7195@xor.obsecurity.org> References: <3AC3A738.B73B0404@pinetel.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-md5; protocol="application/pgp-signature"; boundary="H+4ONPRPur6+Ovig" Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <3AC3A738.B73B0404@pinetel.com>; from hweaver@pinetel.com on Thu, Mar 29, 2001 at 01:20:56PM -0800 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG --H+4ONPRPur6+Ovig Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Mar 29, 2001 at 01:20:56PM -0800, Hal Weaver wrote: > I've installed the following FreeBSD release on two different removable > hard drives used in the same laptop (IBM Thinkpad 760 ED): > -------------------------------------------------- > # uname -a > FreeBSD 4.2-RELEASE FreeBSD 4.2-RELEASE #0: Mon Nov 20 13:02:55 GMT > 2000 jk > h@bento.FreeBSD.org:/usr/src/sys/compile/GENERIC i386 > -------------------------------------------------- >=20 > Builds, boots, and other intense hard drive activity takes about twice > as long on the larger hard drive (5G) than it does on the smaller > (1.2G). There is also a ticking noise accompanying the hard drive > activity on the slower drive. Maybe you haven't enabled softupdates on those partitions..FreeBSD used to default to using a slow, but safe method of doing disk writes; Linux defaults to a fast, but incredibly dangerous method which is likely to give you disk corruption in the event of a power failure (these two have different disk access patterns by virtue of the different algorithms). Softupdates gives you the best of both worlds. Kris --H+4ONPRPur6+Ovig Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (FreeBSD) Comment: For info see http://www.gnupg.org iD8DBQE6w6i2Wry0BWjoQKURAkTMAKCE+AAMPGoCbkZuSekcTNurmbiO0gCfaF7j Ot4o910w0/rD/0VW+qkt+7k= =61Ru -----END PGP SIGNATURE----- --H+4ONPRPur6+Ovig-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message