Techdocs Library > Flashes > IBM HACMP/XD supports the IBM System Storage SVC Storage Software

Document Author:	Shawn Bodily		Document ID:	FLASH10607
Doc. Organization:	Advanced Technical Support		Document Revised:	09/19/2007
Product(s) covered:	HACMP/ES; SAN Volume Controller

Abstract: This document provides the detailed software levels needed to support SVC 4.2 Storage Software. This applies to both base HACMP and HACMP/XD.

IBM HACMP/XD supports the IBM System Storage SVC Storage Software September 5, 2007 IBM High Availability Cluster Multiprocessing (HACMP*) Extended Distance (XD) for AIX 5L*, V5.3 and V5.4 updates support for the IBM System Storage SAN Volume Controller (SVC) Storage Software V4.2. Please refer to the following information for support details. Note: TL = Technology Level; CSP = Concluding Service Pack 1Minimum Levels + These APARs are not yet generally available. Please contact IBM Support to obtain Ifix packages for these APARs. ++ These APARs will not be made generally available for AIX 5.2 TL 9 and AIX 5.3 TL 5. Please contact IBM Support to obtain Ifix packages for these APARs. While not required for correct operation with SDDPCM, the configuration of Fast I/O Failure on fibre-channel devices is highly recommended. For information on configuring this feature refer to "StorageMultipath Subsystem Device Driver User’s Guide " at http://www-1.ibm.com/support/docview.wss?uid=ssg1S7000303&aid=1 page 143 Additional requirement: The AIX OS error daemon parameters should be tuned to avoid lost log entries (See documentation APAR IY75323 at http://www-1.ibm.com/support/docview.wss?uid=isg1IY75323 ). HACMP requires the buffer size be set to at least 1 MB and the log size to 10 MB. The following command can be used: "errdemon -B 1048576 -s 10485760" Restriction notes for Metro Mirror: An HACMP/XD and SVC Metro Mirror configuration with VIO is not currently supported. Although SVC Host Name Aliases are arbitrary, for HACMP's support of Metro Mirror they must match the node names used in the defined HACMP sites. Resource Groups to be managed by HACMP cannot contain volume groups with both Metro Mirror-protected and non-Metro Mirror-protected disks. HACMP does not support Global Mirror functions of SVC Copy Services. HACMP V5.3 does not support moving resource groups across sites. For specific HACMP C-SPOC restrictions, refer to the "HACMP/XD for Metro Mirror: Planning and Administration Guide", page 73 SDDPCM requires the configuration of Enhanced Concurrent Mode volume groups. Other notes: SDD supports both Shared or Enhanced Concurrent Mode volume groups. Request APARs from the IBM Electronic Fix Distribution site at: http://www14.software.ibm.com/webapp/set2/sas/f/genunix3/aixfixes.html For questions or concerns, please send a note to HA Feedback at: HA Solutions Feedback/Poughkeepsie/IBM or hafeedbk@us.ibm.com * Trademark or registered trademark of International Business Machines Corporation. Other company, product, and service names may be trademarks or service marks of others.

Classification:	Hardware; Software	Category:	Installation and Migration
Platform(s):	IBM System p Family
O/S:	AIX	Keywords:	hacmp, svc, xd, hacmp/xd