A fix is available
APAR status
Closed as new function.
Error description
IOCP Update
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: IOCP users requiring support for the * * 9175 IBM z17 model ME1 server and the IBM * * LinuxONE Emperor 5 model ML1. * **************************************************************** * PROBLEM DESCRIPTION: IOCP New Function * **************************************************************** * RECOMMENDATION: APPLY PTF * **************************************************************** This PTF introduces a new release of ICP IOCP and is VERSION 7 RELEASE 1 LEVEL 0 (7.1.0) of the program. ICP IOCP supports the IBM z17 9175 model ME1 and the IBM LinuxONE Emperor 5 model ML1.
Problem conclusion
Temporary fix
FOR RELEASE ES-CMS-740-BASE : PREREQ: VM66834 CO-REQ: NONE IF-REQ: NONE
Comments
PROBLEM CONCLUSION: * ICP IOCP VERSION 7 RELEASE 1 LEVEL 0 (7.1.0) provides the following support: - The 9175 models (ME1 and ML1) are supported with SYSTEM=(9175,1). IOCP ignores the MAXDEV keyword on the RESOURCE statement and reserves the maximum number of devices for this model. Also, IOCP reserves the maximum number of channel subsystems (CSSs) and logical partitions for this model. - IOCP continues to use a variable amount of storage based on the type of IOCDS it is processing. IOCP requires 215MB for the 9175 central processor complex (CPC). - For 9175 models: + The number of PCIe function FIDs is increased such that the maximum FID value is 4FFF hexadecimal. + New CHPID TYPE=CL6 for a Coupling Express3 LR 25Gb adapter. Type CL6 channel paths can only connect to other CL6 channel paths. The current CL5 CHPID type is associated with 10Gb coupling adapters and can only connect to other CL5 channel paths. CL6 channel paths are defined the same as CL5 channel paths and have the same rules and maximums. + New CHPID TYPE=OSH for a Network Express adapter which supports the Enhanced Queued Direct I/O (EQDIO) architecture. An OSH CHPID can be enabled for link aggregation by specifying CHPARM=02 for its definition. + New FUNCTION TYPE=NETH for a Network Express adapter. + A TYPE=OSH CHPID and a TYPE=NETH function can co-exist on the same PCHID port of a Network Express adapter. + New keyword FIDPARM on FUNCTION statement allows a NETH function to operate in promiscuous mode (e.g. FIDPARM=01). + New FUNCTION TYPE=NETD for a Network Express adapter. + New FUNCTION TYPE=PAIA for the IBM Spyre(TM) Accelerator. + New keyword PF on FUNCTION statement which defines a function ID (FID) as a physical function. The PF is assigned to a logical partition and allows an operating system to control the adapter port associated with its PCHID. The NETD and PAIA function types require the definition of a FID as a PF. - The 9175 CPC does not support the mixing of FC and FCP CHPID types on a FICON adapter with or without the MIXTYPE keyword. Also, networking adapters do not support the definition of both OSC and OSD CHPIDs on the same adapter but IOCP does not prevent this except for the 9175 CPC. Defining a mix of either of these channel path types results in the following error message: ICP374I INVALID MIX OF CHPID TYPES FOR PCHIDS xxx AND yyy To correct the error, change one of the channel path types so that the PCHIDs have the same channel path type. * * Documentation Changes: There is a new publication "Input/Output Configuration Program User's Guide for ICP IOCP" which has order number SB10-7183-00. The publication is available at https://www.ibm.com/docs/en/systems-hardware/zsystems by selecting the appropriate IBM Z model and then section Library Overview. * EC (Engineering Change) Information: This PTF level of ICP IOCP contains support for IBM z17 central processor complexes (CPCs). See Usage Notes for further information. * Information on equivalent STAND-ALONE IOCP, z/OS IOCP, and z/VM IOCP follows: * * - Equivalent STAND-ALONE IOCP for ICP IOCP version 7.1.0 is in the listed EC's. The EC's listed are the first levels shipped with this release of IOCP. EC MACHINE TYPE P30924.001 9175 * - Equivalent z/OS and z/VM IOCP is shipped via the listed APARs. OPERATING SYSTEM APAR z/OS OA65190 z/VM 7.3 VM66741 z/VM 7.4 VM66827 * * The EC level of the CPC can be determined from the Hardware Management Console or Support Element by doing the following: 1. From Navigation pane, select 'Systems Management' on HMC or 'System Management' on Support Element. 2. Select 'Systems' on HMC. 3. Select the CPC you are interested in. 4. Expand the 'Change Management' tasks area. 5. Open 'System Information' in the 'Change Management' tasks area and look for Description 'Input/Output Configuration Program' to identify the appropriate EC level. * The STAND-ALONE IOCP version and release can be determined by looking at the header lines of the IOCP reports produced by STAND-ALONE IOCP. The STAND-ALONE IOCP version and release can also be found in IOCP message ICP073I in an I/O Configuration Source file that was processed by STAND-ALONE IOCP. The STAND-ALONE IOCP version and release can also be determined from the Hardware Management Console or Support Element by doing the following (begin with step 6 for the Support Element Console): 1. Select 'Systems Management' from Navigation pane. 2. Select 'Systems'. 3. Select the CPC you are interested in. 4. Expand the 'Recovery' tasks area. 5. Open 'Single Object Operations' in the 'Recovery' tasks area to connect to the Support Element. 6. Select 'System Management' from Navigation pane. 7. Select the CPC or an activated partition. (Note that an activated partition is required to write an IOCDS.) 8. Expand 'Configuration' from the tasks area. 9. Open 'Input/output (I/O) Configuration' in the 'Configuration' tasks area. 10. Select 'View' pull-down. 11. Select 'Configuration Program Level'. * Usage Notes: 1. If you are currently using a release of ICP IOCP and you do not plan on upgrading to the listed EC level, you can still install this PTF and replace your existing ICP IOCP. The 2827, 2828, 2964, 2965, 3906, 3907, 8561, 8562, 3931, and 3932 models can power-on reset with an IOCDS written by the ICP IOCP shipped by this PTF. Also, the 2827, 2828, 2964, 2965, 3906, 3907, 8561, 8562, 3931, and 3932 models can still power-on reset with an IOCDS that was written by your previous release of ICP IOCP. There is no requirement that you write an IOCDS with the ICP IOCP shipped by this PTF and perform a power-on reset after the PTF has been installed. 2. Any IOCDS previously created by an ICP version of IOCP (z/OS, VM, VSE, or STAND-ALONE) can be reported on by the ICP version of IOCP shipped by this PTF. 3. Any IOCDS previously created by another version of IOCP (e.g. IYP IOCP) cannot be reported on by the ICP version of IOCP shipped by this PTF or by the STAND-ALONE equivalent version of the ICP IOCP program. (For HCD users, HCD manages the correlation of IOCP versions to CPC model for you.) 4. If you are upgrading to a 9175 model, you MUST write a 9175 IOCDS to your current 8561 or 3931 CPC as described here or write a 9175 IOCDS after the upgrade is completed. Prior to the upgrade, use IOCP execution parameter CHECKCPC=NO or HCD option 'Write IOCDS in preparation of upgrade'. The IOCDS will be unusable until your CPC has been upgraded to KEYWORDS: R9175/K D/T9175 SPYRE/K
APAR Information
APAR number
VM66827
Reported component name
VM CMS
Reported component ID
568411201
Reported release
740
Status
CLOSED UR1
PE
NoPE
HIPER
NoHIPER
Special Attention
YesSpecatt / New Function / Xsystem
Submitted date
2025-02-21
Closed date
2025-04-08
Last modified date
2025-09-30
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UM90520
Modules/Macros
DMSICP DMSINL DMSLVLTB ICPCARDF ICPCARDS ICPCARDU ICPCARDW ICPCARDX ICPCARDY ICPCARDZ ICPCFRST ICPCGET ICPCGNDS ICPCINIT ICPCIOCP ICPCIOCU ICPCIODV ICPCMSG ICPCPCHK ICPCPUT ICPCRDDS ICPCRPT ICPCRPTA ICPCRPTB ICPCRPTF ICPCRPTX ICPCRTNS ICPCRTNX ICPCWTDS ICPLIM ICPPCNTL ICPPVM IOCPLOAD 7VMCMS40
| SB10718300 |
Fix information
Fixed component name
VM CMS
Fixed component ID
568411201
Applicable component levels
R740 PSY UM90520
UP25/04/08 P 2502
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
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Document Information
Modified date:
30 September 2025