From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 02560C433EF for ; Sun, 5 Jun 2022 18:15:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346476AbiFESPW (ORCPT ); Sun, 5 Jun 2022 14:15:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55598 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236164AbiFESPV (ORCPT ); Sun, 5 Jun 2022 14:15:21 -0400 Received: from mail-pj1-f51.google.com (mail-pj1-f51.google.com [209.85.216.51]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87A8C4E3A8; Sun, 5 Jun 2022 11:15:18 -0700 (PDT) Received: by mail-pj1-f51.google.com with SMTP id q12-20020a17090a304c00b001e2d4fb0eb4so16076141pjl.4; Sun, 05 Jun 2022 11:15:18 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:references:from:in-reply-to :content-transfer-encoding; bh=XSlVkyH7U19xGkYlKr/QL4qLZZfZicYNepi5FhO2rEw=; b=FilqbPU4Vbkp8rROaouKUX7VSkd4uz2WvmDlDJJwkGK620i8niF0GR3e6iC3piV6nI cW6razdzK9jeb0hjRVfmElRuBJoyCALlkzuzi4Y70WkmEpBrJVoD82o0av3kqdQC5i+x g4dLNeh+hS3SoGRjyEjN1lv8ypv/AvYE3oAAHiSMTBHz/rkSngj33XCGI659rbcGwOMv y4Qi9/KJbSmdnS/t9Dx7eNLjpDvCz2enhMwVAFYgD8q7eWZRInhiPy3xrYr7xJNLMfEI SpkyEfOw6noXZpyZJxcuK8c+LO8DNTeeKLKEAEmRgw2DhCWnMKoofV9KS3zDGfYnBn/B coWw== X-Gm-Message-State: AOAM5339jyDm3Y8Tf+dfns0qtiU+RDfORQU6DMJvp6EOP+7rrZaPrT0r p+/WrkAtlj0S6PjsY4By0hc= X-Google-Smtp-Source: ABdhPJzwmoB07s/jOnk8v4k4T/5zMb0rCKNH1kw1FFfezoahiovaXCjjQpB7yOYVhdgpQekTAqpCEA== X-Received: by 2002:a17:902:ef49:b0:15e:b6ed:4832 with SMTP id e9-20020a170902ef4900b0015eb6ed4832mr19851455plx.173.1654452917814; Sun, 05 Jun 2022 11:15:17 -0700 (PDT) Received: from ?IPV6:2601:647:4000:d7:feaa:14ff:fe9d:6dbd? ([2601:647:4000:d7:feaa:14ff:fe9d:6dbd]) by smtp.gmail.com with ESMTPSA id y189-20020a6264c6000000b0050dc762814asm9061560pfb.36.2022.06.05.11.15.15 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 05 Jun 2022 11:15:16 -0700 (PDT) Message-ID: <09be5981-705a-5c82-a189-dd7f0475d227@acm.org> Date: Sun, 5 Jun 2022 11:15:14 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.10.0 Subject: Re: [dm-devel] [PATCH 0/8] Use block pr_ops in LIO Content-Language: en-US To: Mike Christie , linux-block@vger.kernel.org, dm-devel@redhat.com, snitzer@kernel.org, hch@lst.de, axboe@kernel.dk, martin.petersen@oracle.com, james.bottomley@hansenpartnership.com, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org References: <20220603065536.5641-1-michael.christie@oracle.com> <923053d3-adf8-e4b4-9ef3-8e920ae90a79@acm.org> From: Bart Van Assche In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 6/5/22 09:55, Mike Christie wrote: > libiscsi is not suitable for this type of setup. I think that this setup can be tested as follows with libiscsi: * Configure the backend storage. * Configure LIO to use the backend storage on two different servers. * On a third server, log in with the iSCSI initiator to both servers. * Run the libiscsi iscsi-test-cu test software on the third server and pass the two IQNs that refer to the LIO servers as arguments. From the iscsi-test-cu -h output: iscsi-test-cu [OPTIONS] [multipath-iscsi-url] Did I perhaps overlook or misunderstand something? Thanks, Bart. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D1A15C43334 for ; Sun, 5 Jun 2022 18:15:38 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-177-lkhEVTSyMrmeoGb26L--hA-1; Sun, 05 Jun 2022 14:15:34 -0400 X-MC-Unique: lkhEVTSyMrmeoGb26L--hA-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 8F1523806658; Sun, 5 Jun 2022 18:15:31 +0000 (UTC) Received: from mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (unknown [10.30.29.100]) by smtp.corp.redhat.com (Postfix) with ESMTP id 717E61402410; Sun, 5 Jun 2022 18:15:29 +0000 (UTC) Received: from mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (localhost [IPv6:::1]) by mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (Postfix) with ESMTP id 00697194707A; Sun, 5 Jun 2022 18:15:29 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) by mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (Postfix) with ESMTP id A7ED7194706E for ; Sun, 5 Jun 2022 18:15:28 +0000 (UTC) Received: by smtp.corp.redhat.com (Postfix) id 84D931121314; Sun, 5 Jun 2022 18:15:28 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast03.extmail.prod.ext.rdu2.redhat.com [10.11.55.19]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 813FD1121315 for ; Sun, 5 Jun 2022 18:15:28 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-1.mimecast.com [205.139.110.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 67D7B811E75 for ; Sun, 5 Jun 2022 18:15:28 +0000 (UTC) Received: from mail-pj1-f47.google.com (mail-pj1-f47.google.com [209.85.216.47]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-172-EqBJf6CJN8-xqafHdhNwew-1; Sun, 05 Jun 2022 14:15:19 -0400 X-MC-Unique: EqBJf6CJN8-xqafHdhNwew-1 Received: by mail-pj1-f47.google.com with SMTP id mh16-20020a17090b4ad000b001e8313301f1so4263892pjb.1 for ; Sun, 05 Jun 2022 11:15:18 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:references:from:in-reply-to :content-transfer-encoding; bh=XSlVkyH7U19xGkYlKr/QL4qLZZfZicYNepi5FhO2rEw=; b=0arJR1LUuk9vsYk801KNyTF8PGP/NC9IUb+NT2/vupbTjlQ4BOIJto9met8TUg78jY 8NnulnSHU498Wz1bNVNB+y5nUFYqFjhkGs1Pj3veU4xHm1T69te3/AkDlbTol/8lSDbs +frfvAMl/OaEYd9eoIPK361f3YrWnxB+50I2GYCPwqQuelIeCuAqiWL6S9IQCVUc8K6J vPcVRUo6HGleZ3GxUgVc+mJ4mif3PctmrNcBTEv/mnwhbNLQ43PxgV8kBy9BayfVbtkh DyNNDMpzHMJg2QOFB6ehechIEhC9YLzJUJiEqPORhr0TUexvCZL2PoyQda9jh8AQCtmu pmfA== X-Gm-Message-State: AOAM532mPQ+aVpic+YFIhdEQFPMkMSIlRsutBKcE2ymKh/fIpMFMQc/W QeRMof1e4O8Sg/r89K79dsM= X-Google-Smtp-Source: ABdhPJzwmoB07s/jOnk8v4k4T/5zMb0rCKNH1kw1FFfezoahiovaXCjjQpB7yOYVhdgpQekTAqpCEA== X-Received: by 2002:a17:902:ef49:b0:15e:b6ed:4832 with SMTP id e9-20020a170902ef4900b0015eb6ed4832mr19851455plx.173.1654452917814; Sun, 05 Jun 2022 11:15:17 -0700 (PDT) Received: from ?IPV6:2601:647:4000:d7:feaa:14ff:fe9d:6dbd? ([2601:647:4000:d7:feaa:14ff:fe9d:6dbd]) by smtp.gmail.com with ESMTPSA id y189-20020a6264c6000000b0050dc762814asm9061560pfb.36.2022.06.05.11.15.15 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 05 Jun 2022 11:15:16 -0700 (PDT) Message-ID: <09be5981-705a-5c82-a189-dd7f0475d227@acm.org> Date: Sun, 5 Jun 2022 11:15:14 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.10.0 To: Mike Christie , linux-block@vger.kernel.org, dm-devel@redhat.com, snitzer@kernel.org, hch@lst.de, axboe@kernel.dk, martin.petersen@oracle.com, james.bottomley@hansenpartnership.com, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org References: <20220603065536.5641-1-michael.christie@oracle.com> <923053d3-adf8-e4b4-9ef3-8e920ae90a79@acm.org> From: Bart Van Assche In-Reply-To: X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 Subject: Re: [dm-devel] [PATCH 0/8] Use block pr_ops in LIO X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dm-devel-bounces@redhat.com Sender: "dm-devel" X-Scanned-By: MIMEDefang 2.85 on 10.11.54.7 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" On 6/5/22 09:55, Mike Christie wrote: > libiscsi is not suitable for this type of setup. I think that this setup can be tested as follows with libiscsi: * Configure the backend storage. * Configure LIO to use the backend storage on two different servers. * On a third server, log in with the iSCSI initiator to both servers. * Run the libiscsi iscsi-test-cu test software on the third server and pass the two IQNs that refer to the LIO servers as arguments. From the iscsi-test-cu -h output: iscsi-test-cu [OPTIONS] [multipath-iscsi-url] Did I perhaps overlook or misunderstand something? Thanks, Bart. -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel