Question: What hardware and software is supported by HACMP?
Answer: All HACMP supported hardware and software is listed in the Sales Manual. Hardware requirements are located under the Technical Description topic.
Question: Does HACMP work on different operating systems?
Answer: Yes. HACMP is tightly integrated with the AIX 5L operating system and System p servers allowing for a rich set of features which are not available with any other combination of operating system and hardware.
HACMP V5 introduces support for the Linux operating system on POWER servers. HACMP for Linux supports a subset of the features available on AIX 5L, however this mutli-platform support provides a common availability infrastructure for your entire enterprise which helps you protect your investment while providing a growth path. All supported hardware and software for HACMP on Linux is listed in the Sales Manual.
Question: On which IBM Systems is HACMP V5 supported?
Answer:
All supported hardware and software for HACMP on AIX 5L is listed in the Sales Manual.
All supported hardware and software for HACMP on Linux is listed in the Sales Manual.
Hardware requirements are located under the Technical Description topic.
Question: Is HACMP supported on the new System p5 processors?
Answer:
HACMP is supported on System p5 servers. HACMP for AIX 5L embedded support for dynamic LPAR on p5 systems will require an additional APAR.
Question: On which AIX 5L levels is HACMP supported?
Answer: HACMP requires one of:
AIX 5L V5.2
AIX 5L V5.3
HACMP will support future releases of AIX 5L as they become available. To find the latest fixes available for HACMP and AIX 5L, refer to the TechSupport web site.
Question: What applications work with HACMP?
Answer: All popular applications work with HACMP including DB2, Oracle, SAP, WebSphere, etc. HACMP provides Smart Assist agents to let you quickly and easily configure HACMP with specific applications. HACMP includes flexible configuration parameters that let you easily set it up for just about any application there is. If you are interested in using HACMP with a new application, you can find out more under the topic What kinds of applications are best suited for a high availability environment?
Question: Does HACMP support dynamic LPAR, CUoD, On/Off CoD, or CBU?
Answer: HACMP supports Dynamic Logical Partitioning, Capacity Upgrade on Demand, On/Off Capacity on Demand and Capacity Backup Upgrade. See Announcement Letters 204-298 and 105-056.
Question: If a server has LPAR capability, can two or more LPARs be configured with unique instances of HACMP running on them without incurring additional license charges?
Answer: Yes. HACMP is a server product that has one charge unit: number of processors on which HACMP will be installed or run. Regardless of how many LPARs or instances of AIX 5L that run in the server, you are charged based on the number of active processors in the server that is running HACMP. Note that HACMP configurations containing multiple LPARs within a single server may represent a potential single point-of-failure. To avoid this, it is recommended that the backup for an LPAR be an LPAR on a different server or a standalone server.
Question: Does HACMP support non-IBM hardware or operating systems?
Answer:
Yes. HACMP for AIX 5L supports the hardware and operating systems as specified in the Sales Manual.
HACMP V5.4 includes support for Red Hat and SUSE Linux and the supported hardware and operating systems are listed in Sales Manual.
For more information about non-IBM storage attachment, see EMC and Hitachi storage subsystems.
Question: Does HACMP support EMC or Hitachi storage subsystems when connected to System p servers?
Answer: The storage subsystems supported by HACMP are those documented in the Sales Manual. New additions are announced via Flash. Current information can be retrieved from the online Sales Manual for HACMP on AIX 5L or Sales Manual for HACMP on Linux. HACMP supports only those IBM devices that have passed IBM qualification efforts, and for which IBM development and service are prepared to provide support.
There is a group, associated with development, that tests non-IBM storage subsystems for attachment to AIX 5L systems and HACMP. There are also cooperative service agreements in place with certain non-IBM storage vendors.
HACMP also provides a supported interface, documented in the HACMP Installation Guide, which allows any storage subsystem to be described in terms of a standard set of operations: this allows for the invocation of user-provided methods to accommodate device specific behaviors and operations that may not be automatically supported by HACMP.
If a client has an HACMP cluster containing storage hardware other than that supported by HACMP, and they report a problem, IBM Service will address the problem as follows:
- If the problem is unrelated to that hardware, it will be addressed the same as any other problem.
- If the problem is related to that hardware, and the hardware is covered by a cooperative service agreement with the storage vendor, the problem will be forwarded to the storage vendor.
- If the problem is related to hardware for which no cooperative service agreement is in place, the client will be asked to refer the problem to the hardware manufacturer.
Question: Where do I find out about hardware or software not listed in the Sales Manual?
Answer: Inquiries related to non-IBM products should be directed to the specific vendor. For more information on newly announced IBM hardware and software products that are not listed in the Sales Manual, see Why does HACMP support often come out after the hardware or software announcement?
Question: Why does HACMP support often come out after the hardware or software announce?
Answer: HACMP tests all new hardware and software in an HACMP environment prior to announcing support. We do this because HACMP exercises features and interfaces in unique and stressful ways which may not be exposed outside of an HACMP environment.
We don't simply assume new hardware or software works—we bring it into our lab and run it through a qualification test.
Sometimes problems are found or take time to resolve which means HACMP cannot announce support at the same time as the hardware is announced.
Question: Are the optional features HACMP/XD and HACMP Smart Assist supported by HACMP for Linux?
Answer: Not at this time.
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