# Adabas nucleus response code = (255) **URL:** \ **Category:** Forum\ **Tags:** Adabas-Natural, Adabas, Adabas-on-Mainframes, Adabas-on-Windows-UNIX, Adabas-Performance\ **Created:** [February 23, 2012, 7:05pm UTC](https://techcommunity.softwareag.com/t/adabas-nucleus-response-code-255/99766 "2012-02-23T19:05:00Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Jorge\_Cozzarelly](https://avatars.discourse-cdn.com/v4/letter/j/58f4c7/32.png) [@Jorge\_Cozzarelly](https://techcommunity.softwareag.com/u/Jorge_Cozzarelly)\ **Post date:** [February 23, 2012, 7:05pm UTC](https://techcommunity.softwareag.com/t/adabas-nucleus-response-code-255/99766/1 "2012-02-23T19:05:00Z")
Hello Everyone, We are constantly getting the following error when trying to access data from CONNX or SQL Server through a CONNX OLEDB linked server. “Error Executing Query: Adabas nucleus response code = (255); ADD2 = (00000100) SubCode = (00) SubField = (10)” We also randomly get 255 - insufficient resources on attached buffer pool error when trying to display FDT on some tables on DBA Work bench. Here is our configuration: ADABAS Version 6.2.1.01 Windows Server 2008 32 bits results of displaying high waters: ``` ADANUC Version 6.2.1.01 Database 111 High Water Marks on 23-FEB-2012 11:12:59 ``` Area/Entry Size In Use High Water % * * * User Queue 350 166 168 48 Command Queue - 1 7 - Hold Queue - 0 50 - Client Queue 200 159 162 81 HQ User Limit 150,000 - 50 0 Threads 20 1 20 100 Workpool 30,000,000 0 14,706,560 49 ISN Sort 10,000,000 - 2,273,448 22 Complex Search 10,000,000 - 10,000,000 100 Attached Buffer 1,605,632 1,247,232 1,317,888 82 ATBX (MB) 20 0 0 0 Buffer Pool 512,000,000 511,938,560 511,982,592 99 Protection Area 127,990 Active Area 38,397 - 34 0 XA Area 10 0 0 0 Group Commit 100 1 1 1 Transaction Time 7,200 - 2,420 33 We are not really sure about the ideal configuration for the following parameters: NCL LAB LBP Any help would be really appreciated. Thanks ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [February 23, 2012, 7:46pm UTC](https://techcommunity.softwareag.com/t/adabas-nucleus-response-code-255/99766/2 "2012-02-23T19:46:14Z")
Jorge, unfortunately there’s no “ideal configuration” you can calculate in advance. This appears to be a Rsp255 / Subcode 1 which indicates a LAB overflow, thus you will need to increase that parameter. By how much, you will ask ? You will have to try, I’m afraid, there’s no rule of thumb 😉 But if memory is no scarce resource on that server I’d say double it for a start. NCL still has some cushion, so no immediate need to increase, but if you do, don’t set it too high. LBP - the high water mark here doesn’t tell anything, you will need to check the BP stats. ---
**Author:** ![Jorge\_Cozzarelly](https://avatars.discourse-cdn.com/v4/letter/j/58f4c7/32.png) [@Jorge\_Cozzarelly](https://techcommunity.softwareag.com/u/Jorge_Cozzarelly)\ **Post date:** [February 23, 2012, 8:17pm UTC](https://techcommunity.softwareag.com/t/adabas-nucleus-response-code-255/99766/3 "2012-02-23T20:17:40Z")
Thanks Wolfgang, We have just increased the LAB to 3,200,000 doubling our initial configuration. So far so good and no 255 error code reported. Will keep you posted! ---
**Author:** ![Amarnath\_Venkataraman](https://avatars.discourse-cdn.com/v4/letter/a/bc79bd/32.png) [@Amarnath\_Venkataraman](https://techcommunity.softwareag.com/u/Amarnath_Venkataraman)\ **Post date:** [January 26, 2017, 9:39pm UTC](https://techcommunity.softwareag.com/t/adabas-nucleus-response-code-255/99766/4 "2017-01-26T21:39:25Z")
We had the same issue, Adabase team have increased the LAB size, but after 2 days again this error started coming? Could there be any other issue… right now? ---
**Author:** ![Zaheer\_Ismail2](https://avatars.discourse-cdn.com/v4/letter/z/e19adc/32.png) [@Zaheer\_Ismail2](https://techcommunity.softwareag.com/u/Zaheer_Ismail2)\ **Post date:** [March 21, 2018, 8:35am UTC](https://techcommunity.softwareag.com/t/adabas-nucleus-response-code-255/99766/5 "2018-03-21T08:35:18Z")
Dear all I am being faced with the following error NATURAL SECURITY LOGON FAILED DUE TO ADABAS RESPONSECODE: 255 on mainframe. can this be related to the LBP parameter in dev. ADARUN LBP=320000000 BUFFER POOL SIZE WAS 20480000 ADARUN LU=65535 INTERMEDIATE USER BUFFER AREA using adabas v 8.3.3 ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [April 2, 2021, 3:01pm UTC](https://techcommunity.softwareag.com/t/adabas-nucleus-response-code-255/99766/6 "2021-04-02T15:01:35Z")