From owner-freebsd-current Sun Dec 9 23:58:37 2001 Delivered-To: freebsd-current@freebsd.org Received: from freebsd.dk (fw-rl0.freebsd.dk [212.242.86.114]) by hub.freebsd.org (Postfix) with ESMTP id 29F0437B41D for ; Sun, 9 Dec 2001 23:58:28 -0800 (PST) Received: (from sos@localhost) by freebsd.dk (8.11.6/8.11.6) id fBA7wLY48636; Mon, 10 Dec 2001 08:58:21 +0100 (CET) (envelope-from sos) From: Søren Schmidt Message-Id: <200112100758.fBA7wLY48636@freebsd.dk> Subject: Re: IBM DTLA drives (was: Re: "Dangerously dedicated" yet again (was: cvs commit: src/sys/kern subr_diskmbr.c) ) In-Reply-To: <20011210074930.DC9DC38CC@overcee.netplex.com.au> To: Peter Wemm Date: Mon, 10 Dec 2001 08:58:21 +0100 (CET) Cc: Matthew Dillon , freebsd-current@FreeBSD.ORG Reply-To: sos@freebsd.dk X-Mailer: ELM [version 2.4ME+ PL94b (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=ISO-8859-1 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG It seems Peter Wemm wrote: > > Yes there are two problems. The physical failure problem seems to > be mostly restricted to the 75GXP. However the electronics/bandwidth/ > density/whatever-it-is problem is uniform across the entire DTLA line. > We stopped using 75GXP's at work a while back, but we still regularly > suffer from the electronics/bandwidth/whatever-it-is problem on 30G DTLA > drives on a daily basis. It seems this problem only affects the newer versions of the DTLA, the first models (of which type most of mine are) doesn't seem to suffer from this problem. The first models looks like the older DPTA drives, whereas the newer ones has at least a different top cover. Anyhow, the problem seem to be an electronics malfunction (IBM doesn't tell exactly) and it is triggered by the drive being very sensitive to the power supply being top quality. At any rate I think the hysteria about these drives is somewhat overrated, but thats only my oppinion... -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message