From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mikhail Pershin Date: Thu, 21 Aug 2008 14:03:44 +0400 Subject: [Lustre-devel] [RFC] "lctl readonly" modification proposal In-Reply-To: <200808211324.09313.alexander.zarochentsev@sun.com> References: <200808211324.09313.alexander.zarochentsev@sun.com> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lustre-devel@lists.lustre.org On Thu, 21 Aug 2008 13:24:08 +0400, Alexander Zarochentsev wrote: > On 20 August 2008 23:42:39 Mikhail Pershin wrote: >> Also to be sure that all before barrier is on disk, many test cases >> about recovery rely on the fact that operations before barrier are on >> disk. This is important with HARD failure case especially, without >> sync before barrier the operations before barrier may be lost and >> affect the tests. I agree that syncless variant of barrier is needed >> but we also need barrier with sync depending on test case. > > You don't need lctl readonly to do a sync, the replay_barrier function > from test-framework.sh adds a sync explicitly You are right, it is safe in that case. -- Mikhail Pershin Staff Engineer Lustre Group Sun Microsystems, Inc.