From owner-freebsd-scsi Fri Jun 7 9: 8:23 2002 Delivered-To: freebsd-scsi@freebsd.org Received: from misery.sdf.com (misery.sdf.com [207.200.153.226]) by hub.freebsd.org (Postfix) with ESMTP id 595DE37B405 for ; Fri, 7 Jun 2002 09:08:17 -0700 (PDT) Received: from tom (helo=localhost) by misery.sdf.com with local-esmtp (Exim 2.12 #1) id 17GLM7-00064x-00; Fri, 7 Jun 2002 08:08:47 -0700 Date: Fri, 7 Jun 2002 08:08:45 -0700 (PDT) From: Tom Samplonius To: ticso@cicely.de Cc: Joao Pedras , freebsd-scsi@FreeBSD.ORG Subject: Re: sync cache In-Reply-To: <20020606110101.GU66505@cicely5.cicely.de> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Thu, 6 Jun 2002, Bernd Walter wrote: > Even if they do not need the command they should have implemented > it as a nop. I don't think that is a good idea for a device to lie about what it supports. The illegal command response is an appropriate response for an unimplemented command, so OS knows that the command did not work. FreeBSD simply logs it to the console, and it is harmless. BTW, most SCSI-SCSI RAID boxes don't implement the cache flush command. > Possibly this command is even required in recent SCSI specs. > Such a lousy implementation does not create trust in firmware. > > -- > B.Walter COSMO-Project http://www.cosmo-project.de > ticso@cicely.de Usergroup info@cosmo-project.de > Tom To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message