MFE SCF: A Busy-condition Return Code From a System Call Leads to a SCF0613E CSC Message
Summary: Cross-System Communication (CSC) unnecessarily issues a SCF0613E message when the Application Programming Interface (API) scratch processing area misinterprets a busy-condition return code from a system call (SYSCALL). CSC then reestablishes access to the controller and successfully issues the request. ...
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Symptoms
In the Symmetrix Control Facility (SCF) log, the following messages can be seen:
SCFSCRRW I/O ERR R15=00000000 IOBRC=00000041 IOBECB=41 IOSTSA=0C
SCFSCRRW - UCB@ 02652EE0 (gk) SYSCALL 8113 FAILED, RC 00000008
SCF0613E CSC Write/swap failed, RC:00000008, RS:00000004 (IO failure)Cause
The API scratch area processing misinterprets a busy-condition SYSCALL return code as an I/O error. It then returns this SYSCALL failure to CSC, which generates the SCF0613E message. The SYSCALL should have been retried in the API scratch processing before returning it to CSC and unnecessarily generating the SCF0613E message.
Resolution
Permanent Fix:
- For Mainframe Enablers (MFE) 10.1.0, Program Temporary Fix (PTF) SFA1045 is available to address the issue. Download the PTF from Dell Online Support.
- For Mainframe Enablers (MFE) 10.0.0, Program Temporary Fix (PTF) SFA0098 is available to address the issue. Download the PTF from Dell Online Support.
Additional Information
PTF Cover Letters:
++PTF(SFA1045) REWORK(2024208) . ++VER(Z038) FMID(SSCFA10) /* *------------------------------------------------------------- * PROBLEM DESCRIPTION(S): * ------------------------------------------------------------ * PROBLEM FIXED: MFE-17227 * USERS AFFECTED: All * PROBLEM DESCRIPTION: CSC message SCF0613E is being issued * indicating an IO error due to a * controller busy condition. * Processing should be retried prior * to determining if this is an IO error * situation. * DESCRIPTION DETAIL: * * Customer is seeing an occasional SCF0613E message from CSC * for a normally retryable error. * The API scratch area interface is incorrectly determining * this as an IO error and returning this status to CSC. * CSC then issues message SCF0613E which rechecks * and revalidates access to the controller and reissues the * request which is successful. * The actual retry should have been initiated in the API * scratch processing prior to returning to CSC. * * PROBLEM RESOLUTION: * * The API scratch area processing now initiates a retry on * busy condition return codes from the scratch area syscalls * * MODULES: SCFSCRRW * * ------------------------------------------------------------ * SFA1045 25 Jul 2024 15:45:02 * ------------------------------------------------------------ * OPT Summary * The following OPT was addressed by this PTF: * * MFE-17227 * *------------------------------------------------------------- ++PTF(SFA0098) REWORK(2024208) . ++VER(Z038) FMID(SSCFA00) /* *------------------------------------------------------------- * PROBLEM DESCRIPTION(S): * ------------------------------------------------------------ * PROBLEM FIXED: MFE-17225 * USERS AFFECTED: All * PROBLEM DESCRIPTION: CSC message SCF0613E is being issued * indicating an IO error due to a * controller busy condition. * Processing should be retried prior * to determining if this is an IO error * situation. * DESCRIPTION DETAIL: * * Customer is seeing an occasional SCF0613E message from CSC * for a normally retryable error. * The API scratch area interface is incorrectly determining * this as an IO error and returning this status to CSC. * CSC then issues message SCF0613E which rechecks * and revalidates access to the controller and reissues the * request which is successful. * The actual retry should have been initiated in the API * scratch processing prior to returning to CSC. * * PROBLEM RESOLUTION: * * The API scratch area processing now initiates a retry on * busy condition return codes from the scratch area syscalls * * MODULES: SCFSCRRW * * ------------------------------------------------------------ * SFA0098 25 Jul 2024 15:38:11 * ------------------------------------------------------------ * OPT Summary * The following OPT was addressed by this PTF: * * MFE-17225 * *-------------------------------------------------------------
Affected Products
Mainframe EnablersArticle Properties
Article Number: 000227583
Article Type: Solution
Last Modified: 12 Sept 2024
Version: 3
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