diff --git a/sdk/storage/Azure.Storage.Blobs/CHANGELOG.md b/sdk/storage/Azure.Storage.Blobs/CHANGELOG.md
index 393b8351c031d..0b82a88b3f007 100644
--- a/sdk/storage/Azure.Storage.Blobs/CHANGELOG.md
+++ b/sdk/storage/Azure.Storage.Blobs/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## 12.6.0-preview.1 (Unreleased)
 - Fixed bug where BlobClient.Upload(), BlockBlobClient.Upload(), AppendBlobClient.AppendBlock(), and PageBlobClient.UploadPages() would deadlock if the content stream's position was not 0.
 - Fixed bug in BlobBaseClient.OpenRead() causing us to do more download called than necessary.
+- Fixed bug where PageBlobWriteStream would advance Position 2x the number of written bytes.
 
 ## 12.5.1 (2020-08-18)
 - Fixed bug in TaskExtensions.EnsureCompleted method that causes it to unconditionally throw an exception in the environments with synchronization context
diff --git a/sdk/storage/Azure.Storage.Blobs/src/PageBlobWriteStream.cs b/sdk/storage/Azure.Storage.Blobs/src/PageBlobWriteStream.cs
index 6ffbd0ee9dc02..1e27a3b547c08 100644
--- a/sdk/storage/Azure.Storage.Blobs/src/PageBlobWriteStream.cs
+++ b/sdk/storage/Azure.Storage.Blobs/src/PageBlobWriteStream.cs
@@ -86,7 +86,6 @@ await WriteToBufferInternal(
                     }
                 }
             }
-            _position += count;
         }
 
         protected override async Task AppendInternal(bool async, CancellationToken cancellationToken)
diff --git a/sdk/storage/Azure.Storage.Blobs/tests/PageBlobClientTests.cs b/sdk/storage/Azure.Storage.Blobs/tests/PageBlobClientTests.cs
index 673c86a71c3a0..1cd37bb8133de 100644
--- a/sdk/storage/Azure.Storage.Blobs/tests/PageBlobClientTests.cs
+++ b/sdk/storage/Azure.Storage.Blobs/tests/PageBlobClientTests.cs
@@ -3384,6 +3384,47 @@ await TestHelper.CatchAsync<Exception>(
             }
         }
 
+        [Test]
+        public async Task OpenWriteAsync_Position()
+        {
+            // Arrange
+            await using DisposingContainer test = await GetTestContainerAsync();
+            PageBlobClient blob = await CreatePageBlobClientAsync(test.Container, Constants.KB);
+
+            byte[] data0 = GetRandomBuffer(512);
+            byte[] data1 = GetRandomBuffer(512);
+            using Stream dataStream0 = new MemoryStream(data0);
+            using Stream dataStream1 = new MemoryStream(data1);
+            byte[] expectedData = new byte[Constants.KB];
+            Array.Copy(data0, expectedData, 512);
+            Array.Copy(data1, 0, expectedData, 512, 512);
+
+            // Act
+            Stream openWriteStream = await blob.OpenWriteAsync(
+                overwrite: false,
+                position: 0);
+
+            Assert.AreEqual(0, openWriteStream.Position);
+
+            await dataStream0.CopyToAsync(openWriteStream);
+
+            Assert.AreEqual(512, openWriteStream.Position);
+
+            await dataStream1.CopyToAsync(openWriteStream);
+
+            Assert.AreEqual(1024, openWriteStream.Position);
+
+            await openWriteStream.FlushAsync();
+
+            Assert.AreEqual(1024, openWriteStream.Position);
+
+            Response<BlobDownloadInfo> result = await blob.DownloadAsync();
+            MemoryStream dataResult = new MemoryStream();
+            await result.Value.Content.CopyToAsync(dataResult);
+            Assert.AreEqual(expectedData.Length, dataResult.Length);
+            TestHelper.AssertSequenceEqual(expectedData, dataResult.ToArray());
+        }
+
         private PageBlobRequestConditions BuildAccessConditions(
             AccessConditionParameters parameters,
             bool lease = false,
diff --git a/sdk/storage/Azure.Storage.Blobs/tests/SessionRecords/PageBlobClientTests/OpenWriteAsync_Position.json b/sdk/storage/Azure.Storage.Blobs/tests/SessionRecords/PageBlobClientTests/OpenWriteAsync_Position.json
new file mode 100644
index 0000000000000..b6822648572e4
--- /dev/null
+++ b/sdk/storage/Azure.Storage.Blobs/tests/SessionRecords/PageBlobClientTests/OpenWriteAsync_Position.json
@@ -0,0 +1,226 @@
+{
+  "Entries": [
+    {
+      "RequestUri": "https://seanmcccanary3.blob.core.windows.net/test-container-ac7a6200-668e-a4b2-c8cd-0c3440d46daa?restype=container",
+      "RequestMethod": "PUT",
+      "RequestHeaders": {
+        "Authorization": "Sanitized",
+        "traceparent": "00-3ab35b85ffcf974887f2169f7c8a6524-70c85576df6f7947-00",
+        "User-Agent": [
+          "azsdk-net-Storage.Blobs/12.6.0-dev.20200831.1",
+          "(.NET Core 4.6.29017.01; Microsoft Windows 10.0.18362 )"
+        ],
+        "x-ms-blob-public-access": "container",
+        "x-ms-client-request-id": "b6d9f9cc-aaf2-f662-6552-48948c76a3c1",
+        "x-ms-date": "Mon, 31 Aug 2020 19:59:26 GMT",
+        "x-ms-return-client-request-id": "true",
+        "x-ms-version": "2019-12-12"
+      },
+      "RequestBody": null,
+      "StatusCode": 201,
+      "ResponseHeaders": {
+        "Content-Length": "0",
+        "Date": "Mon, 31 Aug 2020 19:59:24 GMT",
+        "ETag": "\u00220x8D84DE85C481705\u0022",
+        "Last-Modified": "Mon, 31 Aug 2020 19:59:24 GMT",
+        "Server": [
+          "Windows-Azure-Blob/1.0",
+          "Microsoft-HTTPAPI/2.0"
+        ],
+        "x-ms-client-request-id": "b6d9f9cc-aaf2-f662-6552-48948c76a3c1",
+        "x-ms-request-id": "d1fa2670-101e-0017-41d1-7f73c9000000",
+        "x-ms-version": "2019-12-12"
+      },
+      "ResponseBody": []
+    },
+    {
+      "RequestUri": "https://seanmcccanary3.blob.core.windows.net/test-container-ac7a6200-668e-a4b2-c8cd-0c3440d46daa/test-blob-4b101646-5f6e-479b-8a0b-a4c2b4df1969",
+      "RequestMethod": "PUT",
+      "RequestHeaders": {
+        "Authorization": "Sanitized",
+        "Content-Length": "0",
+        "traceparent": "00-0bffdfb449f0424e82feb20ab8100379-e871ea44bd4a2744-00",
+        "User-Agent": [
+          "azsdk-net-Storage.Blobs/12.6.0-dev.20200831.1",
+          "(.NET Core 4.6.29017.01; Microsoft Windows 10.0.18362 )"
+        ],
+        "x-ms-blob-content-length": "1024",
+        "x-ms-blob-sequence-number": "0",
+        "x-ms-blob-type": "PageBlob",
+        "x-ms-client-request-id": "748cf028-fc4e-6cff-5e92-2be7069f4286",
+        "x-ms-date": "Mon, 31 Aug 2020 19:59:26 GMT",
+        "x-ms-return-client-request-id": "true",
+        "x-ms-version": "2019-12-12"
+      },
+      "RequestBody": null,
+      "StatusCode": 201,
+      "ResponseHeaders": {
+        "Content-Length": "0",
+        "Date": "Mon, 31 Aug 2020 19:59:24 GMT",
+        "ETag": "\u00220x8D84DE85C598D1C\u0022",
+        "Last-Modified": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "Server": [
+          "Windows-Azure-Blob/1.0",
+          "Microsoft-HTTPAPI/2.0"
+        ],
+        "x-ms-client-request-id": "748cf028-fc4e-6cff-5e92-2be7069f4286",
+        "x-ms-request-id": "d1fa268c-101e-0017-56d1-7f73c9000000",
+        "x-ms-request-server-encrypted": "true",
+        "x-ms-version": "2019-12-12"
+      },
+      "ResponseBody": []
+    },
+    {
+      "RequestUri": "https://seanmcccanary3.blob.core.windows.net/test-container-ac7a6200-668e-a4b2-c8cd-0c3440d46daa/test-blob-4b101646-5f6e-479b-8a0b-a4c2b4df1969",
+      "RequestMethod": "HEAD",
+      "RequestHeaders": {
+        "Authorization": "Sanitized",
+        "traceparent": "00-dd46709b5509b444b1923a03dba3f11e-01a5644032b69644-00",
+        "User-Agent": [
+          "azsdk-net-Storage.Blobs/12.6.0-dev.20200831.1",
+          "(.NET Core 4.6.29017.01; Microsoft Windows 10.0.18362 )"
+        ],
+        "x-ms-client-request-id": "831ae77d-bd74-e2a2-9496-d038a1560097",
+        "x-ms-date": "Mon, 31 Aug 2020 19:59:26 GMT",
+        "x-ms-return-client-request-id": "true",
+        "x-ms-version": "2019-12-12"
+      },
+      "RequestBody": null,
+      "StatusCode": 200,
+      "ResponseHeaders": {
+        "Accept-Ranges": "bytes",
+        "Content-Length": "0",
+        "Content-Type": "application/octet-stream",
+        "Date": "Mon, 31 Aug 2020 19:59:24 GMT",
+        "ETag": "\u00220x8D84DE85C598D1C\u0022",
+        "Last-Modified": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "Server": [
+          "Windows-Azure-Blob/1.0",
+          "Microsoft-HTTPAPI/2.0"
+        ],
+        "x-ms-blob-sequence-number": "0",
+        "x-ms-blob-type": "PageBlob",
+        "x-ms-client-request-id": "831ae77d-bd74-e2a2-9496-d038a1560097",
+        "x-ms-creation-time": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "x-ms-lease-state": "available",
+        "x-ms-lease-status": "unlocked",
+        "x-ms-request-id": "d1fa269a-101e-0017-63d1-7f73c9000000",
+        "x-ms-server-encrypted": "true",
+        "x-ms-version": "2019-12-12"
+      },
+      "ResponseBody": []
+    },
+    {
+      "RequestUri": "https://seanmcccanary3.blob.core.windows.net/test-container-ac7a6200-668e-a4b2-c8cd-0c3440d46daa/test-blob-4b101646-5f6e-479b-8a0b-a4c2b4df1969?comp=page",
+      "RequestMethod": "PUT",
+      "RequestHeaders": {
+        "Authorization": "Sanitized",
+        "Content-Length": "1024",
+        "If-Match": "\u00220x8D84DE85C598D1C\u0022",
+        "User-Agent": [
+          "azsdk-net-Storage.Blobs/12.6.0-dev.20200831.1",
+          "(.NET Core 4.6.29017.01; Microsoft Windows 10.0.18362 )"
+        ],
+        "x-ms-client-request-id": "a312487c-5f95-cdee-9bce-3aca0868103a",
+        "x-ms-date": "Mon, 31 Aug 2020 19:59:26 GMT",
+        "x-ms-page-write": "update",
+        "x-ms-range": "bytes=0-1023",
+        "x-ms-return-client-request-id": "true",
+        "x-ms-version": "2019-12-12"
+      },
+      "RequestBody": "ON8O7Q5bxo5fAKO6twPWRigRmsNSpRqJn/voZ4zPCQhyIl\u002BRNfWDzCr\u002BFU5ZRbVavOS/9AV\u002BM5PFhU0Tc14Cj/aaR5SkRBEyjs2ZVI/LL1pFjqunEBUD8\u002B/LzLCnb1nL\u002B4ZYv/0htXfTjWU45d4E\u002BVXzzuSzW37gllSk2Xhhih9zzlkJcnBdI9gz1IOvyw4Qx9JbtKF0F6AHdyiofNz/cQJGxBaF\u002BofklaoMf4b7MctFlBGlBtV9/7a4AfpItKf7NGKAaQb3isxLdh73aJcZC0ZcYufLWWssycVfzfmMm\u002BECEEsjesfETgpEWo\u002B2hZYfn/a07FG/L9v3VKBBl73Tv9o99FdM9ZB\u002BlxTdhv7cdUMuQC0D16\u002BPQ\u002BBvLCYng7ZMcZu0eZA\u002B0qllNVQ94ancGt5cElaP0OcrrrF33MhpVhRekBViJ/yy8G6EnaJbUmE3khJIynBfvaC0icrfx/bg\u002B94/31GTevPhqiLoCzJEz1tQP0m2IYuk/tN0rp0y0yh3o6LDG3MQoxgeZyBNd7Fub7lujoesKtpTm\u002BB9H8tVr9f5cGiPgbToQJswmLlrVociBT/jw0SgynnIcH\u002BSkoRNyLhIUwZJ3u0Fhk3sfJEg50RZWxmMceySWKXuxxE0Va4X4s8BIgKA2CdR3jz3tE7np4g7OTdqwVfMtvtgWhbc0TCf1JnCH8RB2YLyO5OvmqNXBx\u002BI\u002BBx2rSF4NGwHH30QdAwMWOC0JIjE\u002BV\u002B0eIbDHBtXCFP3VNgTKCd4SupYOrkF4caGo0LDo\u002BKXxP\u002B8wjSbtBdQsBYpGSA0\u002BC\u002B5PNmda7\u002Bmr5e/PHnYlGVwX4/YVmby3JXSB4mi28elUqoTCWYJ\u002BVg/FRKd23ieeBuxuLmQW6HIxl9Dy2Q1BNPPGerOxYr\u002BZ2Y3mUBTVQAdNI9u8CIOFfYJSkIHxS7zCRE/zsKNz7KQslFTWcJgdXFeJpbVxxOwwQTzxXpI96I3Q48vFIc\u002Bj2Tc3T7Rurw0qNXRqJ6XHkL9jgy\u002BmQo4SLquHBUyMGDqIJYy\u002BerU3wZIvxyld08DnyVNMoV6gPZZo5WEIp6mAXd054cIZSVYKK8Gddruk9Frqnzw5f7ab6Cg2FVVULxoob6kMJDH\u002Bjr/9AnWdAobaxDEGXghtht5mXfnaIzQA9fyndMbSmNAo69B8PD1BPuVhG1EkTdERuujK5YY35KuL/Ey49Y2ACGtg3XI4MUqhJV7UuQfi3KgrlfoeB7MKMMdk8D/wyAlXoRLlg3BfGUmeKcAnY2tjqR/kTV\u002BTocC4Fuxqk0EK8B1VvNg0/Rk3jLxwf93zIs2bwQcfzHqpxD8SbayD9EYIU3mi0aZTbqvG7MDjIyHixTPezpI6KyPiq/jYw==",
+      "StatusCode": 201,
+      "ResponseHeaders": {
+        "Content-Length": "0",
+        "Date": "Mon, 31 Aug 2020 19:59:24 GMT",
+        "ETag": "\u00220x8D84DE85C6D18BB\u0022",
+        "Last-Modified": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "Server": [
+          "Windows-Azure-Blob/1.0",
+          "Microsoft-HTTPAPI/2.0"
+        ],
+        "x-ms-blob-sequence-number": "0",
+        "x-ms-client-request-id": "a312487c-5f95-cdee-9bce-3aca0868103a",
+        "x-ms-content-crc64": "w0WgLlaqnHI=",
+        "x-ms-request-id": "d1fa26f7-101e-0017-2bd1-7f73c9000000",
+        "x-ms-request-server-encrypted": "true",
+        "x-ms-version": "2019-12-12"
+      },
+      "ResponseBody": []
+    },
+    {
+      "RequestUri": "https://seanmcccanary3.blob.core.windows.net/test-container-ac7a6200-668e-a4b2-c8cd-0c3440d46daa/test-blob-4b101646-5f6e-479b-8a0b-a4c2b4df1969",
+      "RequestMethod": "GET",
+      "RequestHeaders": {
+        "Authorization": "Sanitized",
+        "traceparent": "00-5e80bea2119e304da53ad142b5ea29fa-aa184954282b8a45-00",
+        "User-Agent": [
+          "azsdk-net-Storage.Blobs/12.6.0-dev.20200831.1",
+          "(.NET Core 4.6.29017.01; Microsoft Windows 10.0.18362 )"
+        ],
+        "x-ms-client-request-id": "58bbd17d-5d44-5602-fb63-d59caad8ac83",
+        "x-ms-date": "Mon, 31 Aug 2020 19:59:26 GMT",
+        "x-ms-return-client-request-id": "true",
+        "x-ms-version": "2019-12-12"
+      },
+      "RequestBody": null,
+      "StatusCode": 200,
+      "ResponseHeaders": {
+        "Accept-Ranges": "bytes",
+        "Content-Length": "1024",
+        "Content-Type": "application/octet-stream",
+        "Date": "Mon, 31 Aug 2020 19:59:24 GMT",
+        "ETag": "\u00220x8D84DE85C6D18BB\u0022",
+        "Last-Modified": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "Server": [
+          "Windows-Azure-Blob/1.0",
+          "Microsoft-HTTPAPI/2.0"
+        ],
+        "x-ms-blob-sequence-number": "0",
+        "x-ms-blob-type": "PageBlob",
+        "x-ms-client-request-id": "58bbd17d-5d44-5602-fb63-d59caad8ac83",
+        "x-ms-creation-time": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "x-ms-lease-state": "available",
+        "x-ms-lease-status": "unlocked",
+        "x-ms-request-id": "d1fa2717-101e-0017-44d1-7f73c9000000",
+        "x-ms-server-encrypted": "true",
+        "x-ms-version": "2019-12-12"
+      },
+      "ResponseBody": "ON8O7Q5bxo5fAKO6twPWRigRmsNSpRqJn/voZ4zPCQhyIl\u002BRNfWDzCr\u002BFU5ZRbVavOS/9AV\u002BM5PFhU0Tc14Cj/aaR5SkRBEyjs2ZVI/LL1pFjqunEBUD8\u002B/LzLCnb1nL\u002B4ZYv/0htXfTjWU45d4E\u002BVXzzuSzW37gllSk2Xhhih9zzlkJcnBdI9gz1IOvyw4Qx9JbtKF0F6AHdyiofNz/cQJGxBaF\u002BofklaoMf4b7MctFlBGlBtV9/7a4AfpItKf7NGKAaQb3isxLdh73aJcZC0ZcYufLWWssycVfzfmMm\u002BECEEsjesfETgpEWo\u002B2hZYfn/a07FG/L9v3VKBBl73Tv9o99FdM9ZB\u002BlxTdhv7cdUMuQC0D16\u002BPQ\u002BBvLCYng7ZMcZu0eZA\u002B0qllNVQ94ancGt5cElaP0OcrrrF33MhpVhRekBViJ/yy8G6EnaJbUmE3khJIynBfvaC0icrfx/bg\u002B94/31GTevPhqiLoCzJEz1tQP0m2IYuk/tN0rp0y0yh3o6LDG3MQoxgeZyBNd7Fub7lujoesKtpTm\u002BB9H8tVr9f5cGiPgbToQJswmLlrVociBT/jw0SgynnIcH\u002BSkoRNyLhIUwZJ3u0Fhk3sfJEg50RZWxmMceySWKXuxxE0Va4X4s8BIgKA2CdR3jz3tE7np4g7OTdqwVfMtvtgWhbc0TCf1JnCH8RB2YLyO5OvmqNXBx\u002BI\u002BBx2rSF4NGwHH30QdAwMWOC0JIjE\u002BV\u002B0eIbDHBtXCFP3VNgTKCd4SupYOrkF4caGo0LDo\u002BKXxP\u002B8wjSbtBdQsBYpGSA0\u002BC\u002B5PNmda7\u002Bmr5e/PHnYlGVwX4/YVmby3JXSB4mi28elUqoTCWYJ\u002BVg/FRKd23ieeBuxuLmQW6HIxl9Dy2Q1BNPPGerOxYr\u002BZ2Y3mUBTVQAdNI9u8CIOFfYJSkIHxS7zCRE/zsKNz7KQslFTWcJgdXFeJpbVxxOwwQTzxXpI96I3Q48vFIc\u002Bj2Tc3T7Rurw0qNXRqJ6XHkL9jgy\u002BmQo4SLquHBUyMGDqIJYy\u002BerU3wZIvxyld08DnyVNMoV6gPZZo5WEIp6mAXd054cIZSVYKK8Gddruk9Frqnzw5f7ab6Cg2FVVULxoob6kMJDH\u002Bjr/9AnWdAobaxDEGXghtht5mXfnaIzQA9fyndMbSmNAo69B8PD1BPuVhG1EkTdERuujK5YY35KuL/Ey49Y2ACGtg3XI4MUqhJV7UuQfi3KgrlfoeB7MKMMdk8D/wyAlXoRLlg3BfGUmeKcAnY2tjqR/kTV\u002BTocC4Fuxqk0EK8B1VvNg0/Rk3jLxwf93zIs2bwQcfzHqpxD8SbayD9EYIU3mi0aZTbqvG7MDjIyHixTPezpI6KyPiq/jYw=="
+    },
+    {
+      "RequestUri": "https://seanmcccanary3.blob.core.windows.net/test-container-ac7a6200-668e-a4b2-c8cd-0c3440d46daa?restype=container",
+      "RequestMethod": "DELETE",
+      "RequestHeaders": {
+        "Authorization": "Sanitized",
+        "traceparent": "00-f2dc7574206ffd4cb2187e20d567e096-2a473df1ef86024d-00",
+        "User-Agent": [
+          "azsdk-net-Storage.Blobs/12.6.0-dev.20200831.1",
+          "(.NET Core 4.6.29017.01; Microsoft Windows 10.0.18362 )"
+        ],
+        "x-ms-client-request-id": "364c8577-b8ac-e2f5-a98e-3bb6245ced6b",
+        "x-ms-date": "Mon, 31 Aug 2020 19:59:26 GMT",
+        "x-ms-return-client-request-id": "true",
+        "x-ms-version": "2019-12-12"
+      },
+      "RequestBody": null,
+      "StatusCode": 202,
+      "ResponseHeaders": {
+        "Content-Length": "0",
+        "Date": "Mon, 31 Aug 2020 19:59:24 GMT",
+        "Server": [
+          "Windows-Azure-Blob/1.0",
+          "Microsoft-HTTPAPI/2.0"
+        ],
+        "x-ms-client-request-id": "364c8577-b8ac-e2f5-a98e-3bb6245ced6b",
+        "x-ms-request-id": "d1fa272a-101e-0017-53d1-7f73c9000000",
+        "x-ms-version": "2019-12-12"
+      },
+      "ResponseBody": []
+    }
+  ],
+  "Variables": {
+    "RandomSeed": "1793062639",
+    "Storage_TestConfigDefault": "ProductionTenant\nseanmcccanary3\nU2FuaXRpemVk\nhttps://seanmcccanary3.blob.core.windows.net\nhttps://seanmcccanary3.file.core.windows.net\nhttps://seanmcccanary3.queue.core.windows.net\nhttps://seanmcccanary3.table.core.windows.net\n\n\n\n\nhttps://seanmcccanary3-secondary.blob.core.windows.net\nhttps://seanmcccanary3-secondary.file.core.windows.net\nhttps://seanmcccanary3-secondary.queue.core.windows.net\nhttps://seanmcccanary3-secondary.table.core.windows.net\n\nSanitized\n\n\nCloud\nBlobEndpoint=https://seanmcccanary3.blob.core.windows.net/;QueueEndpoint=https://seanmcccanary3.queue.core.windows.net/;FileEndpoint=https://seanmcccanary3.file.core.windows.net/;BlobSecondaryEndpoint=https://seanmcccanary3-secondary.blob.core.windows.net/;QueueSecondaryEndpoint=https://seanmcccanary3-secondary.queue.core.windows.net/;FileSecondaryEndpoint=https://seanmcccanary3-secondary.file.core.windows.net/;AccountName=seanmcccanary3;AccountKey=Kg==;\nseanscope1"
+  }
+}
\ No newline at end of file
diff --git a/sdk/storage/Azure.Storage.Blobs/tests/SessionRecords/PageBlobClientTests/OpenWriteAsync_PositionAsync.json b/sdk/storage/Azure.Storage.Blobs/tests/SessionRecords/PageBlobClientTests/OpenWriteAsync_PositionAsync.json
new file mode 100644
index 0000000000000..66c02dc58dac5
--- /dev/null
+++ b/sdk/storage/Azure.Storage.Blobs/tests/SessionRecords/PageBlobClientTests/OpenWriteAsync_PositionAsync.json
@@ -0,0 +1,226 @@
+{
+  "Entries": [
+    {
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+        "Date": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "ETag": "\u00220x8D84DE85C9DDA4A\u0022",
+        "Last-Modified": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "Server": [
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+          "Microsoft-HTTPAPI/2.0"
+        ],
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+        "Content-Length": "0",
+        "Date": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "ETag": "\u00220x8D84DE85CA48690\u0022",
+        "Last-Modified": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "Server": [
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+        "Date": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "ETag": "\u00220x8D84DE85CA48690\u0022",
+        "Last-Modified": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "Server": [
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+          "Microsoft-HTTPAPI/2.0"
+        ],
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+        "x-ms-server-encrypted": "true",
+        "x-ms-version": "2019-12-12"
+      },
+      "ResponseBody": []
+    },
+    {
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+        "Date": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "ETag": "\u00220x8D84DE85CB48F0E\u0022",
+        "Last-Modified": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "Server": [
+          "Windows-Azure-Blob/1.0",
+          "Microsoft-HTTPAPI/2.0"
+        ],
+        "x-ms-blob-sequence-number": "0",
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+        "x-ms-request-server-encrypted": "true",
+        "x-ms-version": "2019-12-12"
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+      "ResponseBody": []
+    },
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+        "x-ms-return-client-request-id": "true",
+        "x-ms-version": "2019-12-12"
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+      "StatusCode": 200,
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+        "Content-Type": "application/octet-stream",
+        "Date": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "ETag": "\u00220x8D84DE85CB48F0E\u0022",
+        "Last-Modified": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "Server": [
+          "Windows-Azure-Blob/1.0",
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+        ],
+        "x-ms-blob-sequence-number": "0",
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+    {
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+      "RequestMethod": "DELETE",
+      "RequestHeaders": {
+        "Authorization": "Sanitized",
+        "traceparent": "00-7c3782b4be98384a9a46d8679a677b60-3c03e63a73d32e4e-00",
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+        "x-ms-client-request-id": "7f24019b-c75b-5824-a02c-082c210cb1ba",
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+        "x-ms-return-client-request-id": "true",
+        "x-ms-version": "2019-12-12"
+      },
+      "RequestBody": null,
+      "StatusCode": 202,
+      "ResponseHeaders": {
+        "Content-Length": "0",
+        "Date": "Mon, 31 Aug 2020 19:59:25 GMT",
+        "Server": [
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+        "x-ms-version": "2019-12-12"
+      },
+      "ResponseBody": []
+    }
+  ],
+  "Variables": {
+    "RandomSeed": "727006712",
+    "Storage_TestConfigDefault": "ProductionTenant\nseanmcccanary3\nU2FuaXRpemVk\nhttps://seanmcccanary3.blob.core.windows.net\nhttps://seanmcccanary3.file.core.windows.net\nhttps://seanmcccanary3.queue.core.windows.net\nhttps://seanmcccanary3.table.core.windows.net\n\n\n\n\nhttps://seanmcccanary3-secondary.blob.core.windows.net\nhttps://seanmcccanary3-secondary.file.core.windows.net\nhttps://seanmcccanary3-secondary.queue.core.windows.net\nhttps://seanmcccanary3-secondary.table.core.windows.net\n\nSanitized\n\n\nCloud\nBlobEndpoint=https://seanmcccanary3.blob.core.windows.net/;QueueEndpoint=https://seanmcccanary3.queue.core.windows.net/;FileEndpoint=https://seanmcccanary3.file.core.windows.net/;BlobSecondaryEndpoint=https://seanmcccanary3-secondary.blob.core.windows.net/;QueueSecondaryEndpoint=https://seanmcccanary3-secondary.queue.core.windows.net/;FileSecondaryEndpoint=https://seanmcccanary3-secondary.file.core.windows.net/;AccountName=seanmcccanary3;AccountKey=Kg==;\nseanscope1"
+  }
+}
\ No newline at end of file