From owner-freebsd-stable Mon May 17 13: 5:34 1999 Delivered-To: freebsd-stable@freebsd.org Received: from ceia.nordier.com (c2-31-dbn.dial-up.net [196.34.155.159]) by hub.freebsd.org (Postfix) with ESMTP id 3827C1500D for ; Mon, 17 May 1999 13:05:25 -0700 (PDT) (envelope-from rnordier@nordier.com) Received: (from rnordier@localhost) by ceia.nordier.com (8.8.7/8.6.12) id WAA07125; Mon, 17 May 1999 22:04:55 +0200 (SAST) From: Robert Nordier Message-Id: <199905172004.WAA07125@ceia.nordier.com> Subject: Re: disk error In-Reply-To: from Alberto de Poo Bas at "May 16, 1999 10:01:47 pm" To: adepoo@tamnet.com.mx (Alberto de Poo Bas) Date: Mon, 17 May 1999 22:04:44 +0200 (SAST) Cc: rnordier@nordier.com (Robert Nordier), stable@freebsd.org X-Mailer: ELM [version 2.4ME+ PL54 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Alberto de Poo Bas wrote: > Thanks, that explain a lot, because some other disk don't have this > problem but the geometry was diferent (like 787 cyl, 255 heads, 63 > sectors). > > Other question, the geometry on an IDE disk can affect the performance or > break something? This is because the above mentioned disk, to change the > values to what they say in the case. There should be no performance difference (and, as far as most 32-bit OSes are concerned, the BIOS geometry tends to be used only while booting, anyway). As far as breaking something: changing the geometry will quite likely mess up your fdisk partition table ("slice table" in FreeBSD terminology). Each slice has a cylinder, head, sector (CHS) starting address and, if the geometry is changed, the CHS values won't necessary resolve to the same block address. -- Robert Nordier To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message