Yes, cells. Doing too many things at once. Chris Blaicher Technical Architect Mainframe Development P: 201-930-8234 | M: 512-627-3803 E: cblaic...@syncsort.com
Syncsort Incorporated 2 Blue Hill Plaza #1563 Pearl River, NY 10965 www.syncsort.com Data quality leader Trillium Software is now a part of Syncsort. -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Seymour J Metz Sent: Tuesday, January 23, 2018 2:04 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: CKD details Shirley you mean cells. A single sector might contain multiple records, depending on the device and on the record layouts. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@listserv.ua.edu> on behalf of Christopher Y. Blaicher <cblaic...@syncsort.com> Sent: Tuesday, January 23, 2018 9:48 AM To: IBM-MAIN@listserv.ua.edu Subject: Re: CKD details With all I put in the last post, I forgot to answer WHY 20 sectors at a minimum for a record. It is because at a minimum a record consists of a COUNT and a DATA section. Each one takes a minimum of 10 sectors, so with even a 1 byte record you need 20 sectors. If you had a 1 byte key and 1 byte of data you would need 30 sectors, 10 for each part. Chris Blaicher Technical Architect Mainframe Development P: 201-930-8234 | M: 512-627-3803 E: cblaic...@syncsort.com Syncsort Incorporated 2 Blue Hill Plaza #1563 Pearl River, NY 10965 http://secure-web.cisco.com/1tr2nwUQE8UCOKlBckWSDEsS73jyrD5tkchlWz_x3UWkmi-GyWYzT6sI0opa2PLaHqtKYh9N6K4_BY-gs_dJezTZSGfI5OkwUyVWDHbefFcA9s0abuSW2YqPjdYa-OjDhWsHtZzGyIIBvxnb8cNCVpSPZZI5Dce_7S1AHPHa101MtzWbq82XPg5VRCQgPO9DnhsWLYUmEmbS72IO44Qz4A973zsDYkpf9v5zQ68DMzC2vAhv5vNcrnLjiDLuUDQ9xbFkg8IHYjfSEYDVPWv4YcMjslBpLecWTHFStPj7WtlXuVMvrbWBjcCKLS-Q59KUxYCk-6sWC8Ifit6ot_f9nvk_4EDwObxspsUKwY4gsVDr2LvVdqfxyvI2zK-Cs1l2P9UJidanG_iN7i_RV8cUCkXLdGpcKpt14PEtlH0jqKv4h9pM6zvHPN4ZeI3U64sie/http%3A%2F%2Fwww.syncsort.com Data quality leader Trillium Software is now a part of Syncsort. -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Christopher Y. Blaicher Sent: Tuesday, January 23, 2018 8:30 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: CKD details See the following for how to calculate a sector https://secure-web.cisco.com/1-4xCrYaoIvd6moQu1tnY3-JDxDEVfGqTdaT9eR_T8lcfOTMZd1ZqkLdRfOBpKu_w6CucO8NILbbiePWe1dwLBleCsi9wLAQ6r0YUnbLI-JDtVjMISYH_vHRxn3AbPeQuPV4-_6vb8nUsRBzxzFxrPXfNmtDGBG9rXm02WNuOcCzLhtDjdsNHbatuqXWm3O0_hOxfKDYKqmIxtOWVxr_6Up8_WVVsLsxhJT0Q7-WyYLOYFH7h7HenBd777eQrLx82uebOVKhE_KJN5_TGL8qUh-XwSm4cJQRUGPlk29wHN4yTQwkgm_2qYFJU-ZsAqx9XbwqIb-LqJRHQk-lvnxqJGh72b0sXI8qIThw5V7AJqlUxyLwZ244dQdhkMwhkomvc3L8yx4-wCHK8p4eq_EzD2PmoGptCgENg0bgNN_7qKyoz-fWPge4EsIcRu54E42WZ/https%3A%2F%2Fwww.ibm.com%2Fsupport%2Fknowledgecenter%2Fen%2FSSB27H_6.2.0%2Ffa2mr_sectval.html Question 2: why 20 sectors at a minimum. It's a long answer. We tend to think of a record as three unified parts, COUNT, KEY and DATA, but really they are three mini-records (for lack of a better description). Each part needs enough cells for the data, plus 9 cells of CRC and other control information that we can never see. So, for a COUNT field it takes 10 cells; for a KEY field, if present, and a DATA field the calculation is: SECTORS = 9 + (KL + (6 * KN) + 6) / 34) Where KN = (KL + 6) / 232 KL = Key length Change KL to DL and do the same calculation for the data area. Question 3: Are you running under VM and using a mini-disk? VM formats their R0 differently, I believe. Hope this helps. Chris Blaicher Technical Architect Mainframe Development P: 201-930-8234 | M: 512-627-3803 E: cblaic...@syncsort.com Syncsort Incorporated 2 Blue Hill Plaza #1563 Pearl River, NY 10965 http://secure-web.cisco.com/1tr2nwUQE8UCOKlBckWSDEsS73jyrD5tkchlWz_x3UWkmi-GyWYzT6sI0opa2PLaHqtKYh9N6K4_BY-gs_dJezTZSGfI5OkwUyVWDHbefFcA9s0abuSW2YqPjdYa-OjDhWsHtZzGyIIBvxnb8cNCVpSPZZI5Dce_7S1AHPHa101MtzWbq82XPg5VRCQgPO9DnhsWLYUmEmbS72IO44Qz4A973zsDYkpf9v5zQ68DMzC2vAhv5vNcrnLjiDLuUDQ9xbFkg8IHYjfSEYDVPWv4YcMjslBpLecWTHFStPj7WtlXuVMvrbWBjcCKLS-Q59KUxYCk-6sWC8Ifit6ot_f9nvk_4EDwObxspsUKwY4gsVDr2LvVdqfxyvI2zK-Cs1l2P9UJidanG_iN7i_RV8cUCkXLdGpcKpt14PEtlH0jqKv4h9pM6zvHPN4ZeI3U64sie/http%3A%2F%2Fwww.syncsort.com Data quality leader Trillium Software is now a part of Syncsort. ________________________________ ATTENTION: ----- The information contained in this message (including any files transmitted with this message) may contain proprietary, trade secret or other confidential and/or legally privileged information. 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