From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Martin K. Petersen" Subject: Re: LSI SAS2008 SATA TRIM not working Date: Fri, 07 Feb 2014 20:24:18 -0500 Message-ID: References: <1391730975.3449.16.camel@sonic.justonedata.com> <1391806363.2761.8.camel@sonic.justonedata.com> <1391808293.2761.9.camel@sonic.justonedata.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from userp1040.oracle.com ([156.151.31.81]:34424 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750756AbaBHBYx (ORCPT ); Fri, 7 Feb 2014 20:24:53 -0500 In-Reply-To: <1391808293.2761.9.camel@sonic.justonedata.com> (Kurt Miller's message of "Fri, 07 Feb 2014 16:24:53 -0500") Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Kurt Miller Cc: "Martin K. Petersen" , linux-scsi@vger.kernel.org >>>>> "Kurt" == Kurt Miller writes: Kurt> # hdparm -I /dev/sdc [...] I don't see any deterministic read after trim/read zero after trim support on your drive. And I have a sneaking suspicion that those are two of the fields that the LSI firmware looks at when deciding whether to support logical block provisioning (in addition to support for the DSM TRIM command). -- Martin K. Petersen Oracle Linux Engineering