From patchwork Fri Mar 22 23:50:19 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Jiang X-Patchwork-Id: 10866665 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C5E3C1708 for ; Fri, 22 Mar 2019 23:50:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 965A42AA2D for ; Fri, 22 Mar 2019 23:50:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8A4D12AA35; Fri, 22 Mar 2019 23:50:21 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4000F2AA30 for ; Fri, 22 Mar 2019 23:50:21 +0000 (UTC) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 156F5211E959B; Fri, 22 Mar 2019 16:50:21 -0700 (PDT) X-Original-To: linux-nvdimm@lists.01.org Delivered-To: linux-nvdimm@lists.01.org Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=192.55.52.151; helo=mga17.intel.com; envelope-from=dave.jiang@intel.com; receiver=linux-nvdimm@lists.01.org Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 3A541211E9593 for ; Fri, 22 Mar 2019 16:50:20 -0700 (PDT) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Mar 2019 16:50:19 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,256,1549958400"; d="scan'208";a="157592701" Received: from djiang5-desk3.ch.intel.com ([143.182.136.93]) by fmsmga001.fm.intel.com with ESMTP; 22 Mar 2019 16:50:19 -0700 Subject: [PATCH 1/2] ndctl: add warning about overwrite taking a long time From: Dave Jiang To: vishal.l.verma@intel.com, dan.j.williams@intel.com Date: Fri, 22 Mar 2019 16:50:19 -0700 Message-ID: <155329861947.65870.13816593912382889728.stgit@djiang5-desk3.ch.intel.com> User-Agent: StGit/unknown-version MIME-Version: 1.0 X-BeenThere: linux-nvdimm@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Linux-nvdimm developer list." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-nvdimm@lists.01.org Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" X-Virus-Scanned: ClamAV using ClamSMTP Add warning note in man page that overwrite may take a long time to execute. Suggested-by: Robert Elliot Signed-off-by: Dave Jiang --- Documentation/ndctl/ndctl-sanitize-dimm.txt | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/Documentation/ndctl/ndctl-sanitize-dimm.txt b/Documentation/ndctl/ndctl-sanitize-dimm.txt index 797820dd..ebf4b995 100644 --- a/Documentation/ndctl/ndctl-sanitize-dimm.txt +++ b/Documentation/ndctl/ndctl-sanitize-dimm.txt @@ -49,7 +49,8 @@ include::xable-dimm-options.txt[] Wipe the entire DIMM, including label data. This can take significant time, and the command is non-blocking. With this option, the overwrite request is merely submitted to the NVDIMM, and the completion is - asynchronous. + asynchronous. Depending on the medium and capacity, overwrite may take + tens of minutes to many hours. -m:: --master_passphrase::