ACFS Support On OS Platforms (Certification Matrix). (文档 ID 1369107.1)

Where: “ Base” (at the “Bug or PSU” column) stands for the " 11.2.0.1 Grid Infrastructure" release.

 Where: “ Base” (at the “Bug or PSU” column) stands for the " 11.2.0.2 Grid Infrastructure" release.

 Where: “ Base” (at the “Bug or PSU” column) stands for the " 11.2.0.3 Grid Infrastructure" release.

 Where: “ Base” (at the “Bug or PSU” column) stands for the " 11.2.0.4 Grid Infrastructure" release.

 Where: “ Base” (at the “Bug or PSU” column) stands for the " 12.1.0.1 Grid Infrastructure" release.

 Where: “ Base” (at the “Bug or PSU” column) stands for the " 12.1.0.2 Grid Infrastructure" release

Where: “Base” (at the “Bug or PSU” column) stands for the "12.2.0.1 Grid Infrastructure" release

Where: “Base” (at the “Bug or PSU” column) stands for the "18.1 Grid Infrastructure" release

Note 1 - ACFS support for new OS updates

ACFS support for new OS updates, service packs, and releases may require functional changes and therefore ACFS support may not be provided even though the corresponding Oracle release supports the OS version in question. Please inquire with your support representative before installing OS releases which are not listed in this note.. 

Note 2 - Known Additional Restrictions

11.2.0.3, 11.2.0.4 - RMAN, Datapump, ArchiveLog and FRA technologies may not be used with ACFS snapshots.   FRA supports transient files only.  FRA permanent files, such as online redo logs and copies of the current control files, are not supported.

12.1.0.1 – RMAN, Datapump, ArchiveLog and FRA technologies may be used with ACFS snapshots.   Full FRA file support (transient and permanent, such as online redo logs and control file copies)

12.1.0.1 – Datafiles:Oracle ACFS in an Oracle Grid 12c Release 1 (12.1) home supports all database files for Oracle Database 11g Release 2 (11.2.0.4) or later, except for data files and redo logs in an Oracle Restart configuration.

Note 3 - Solaris Support Notes

ACFS is only supported in the Oracle Solaris Global Zones, not in Oracle Solaris Local Zones (formerly known as Solaris Local Containers).
ACFS is supported in Solaris Kernel Zones.

Note 4 - Linux Support Notes

1) ACFS is supported on Oracle Virtual Machine, both in a Paravirtualized and a Hardware Virtualized guest.

2) ACFS is not supported on any 'debug' kernel variant, such as 'kernel-debug-2.6.18-8.el5.

3) ACFS is supported on PAE kernel variants, such as kernel-2.6.18-8.el5pae.

4) ACFS is only supported on the host machine, not in local containers (LXC).

Note 5 - Installation of 11.2 ACFS on an Unsupported ACFS Platform\Kernel Combination


ACFS is installed as part of the Grid Infrastructure. When the Grid Infrastructure is installed on a platform\kernel combination that ACFS does not support, and support is later applied, post-install steps must be taken in the 11.2 series to ensure the installation is fully-functional. Without these steps, driver auto-load and the ACFS Registry will not work correctly.


Examples:

• Installing 11.2.0.3.0 on Oracle Linux 6 running the RedHat Compatible Kernel, you must take these steps – the base 11.2.0.3.0 ACFS install does not support this variant.
• Installing 11.2.0.2.0 on AIX 7.1 – the base 11.2.0.2.0 ACFS install does not support AIX 7.1.
• Installing 11.2.0.1 or 11.2.0.2 on any UEK kernel.
• Installing 11.2.0.3.0 on UEK 2.6.32-100.

There are 3 options available to enable ACFS functionality in cases like this:

1. Performing ACFS Post-install Steps Manually : This will recreate necessary resources and install drivers after the installation of the base Grid Infrastructure.
2. Performing a Software Only Install : This will patch the Grid Home so that support for ACFS is enabled during the Grid Install, thereby removing the need for additional steps.
3. Rolling Back Your Kernel Update : In the event that the kernel you are running is not supported, but a different kernel on your OS is, this will reenable ACFS functionality.

1) Performing ACFS Post-install Steps Manually:

1-1. After installation of the Grid Home, ensure the appropriate patch or PSU for the ACFS platform support is installed.
1-2. Run “<GridHome>/bin/acfsdriverstate supported” to ensure the patch is correctly installed. The result should be “True”.
1-3. Run “<GridHome>/bin/acfsdriverstate installed” to ensure that ACFS is correctly installed. If the result is “False”, run “<GridHome>/bin/acfsroot install” as root.
1-4. (11.2.0.3) Run “<GridHome>/bin/acfsroot enable” to enable the ACFS resources again.
1-5. (11.2.0.1, 11.2.0.2) Run “<GridHome>/bin/acfsroot reregister” to enable the ACFS resources again.

2) Performing a Software Only Install:

2-1. Begin the install of the Grid Infrastructure.
2-2. Select Software Only Install.
2-3. Apply Patch with ACFS support to Grid Home.
2-4. Continue the install by running the root scripts and the config assistants. For more information, see the Clusterware Install Guide.

3) Enabling ACFS Functionality when a Supported Platform Patch or PSU is Not Available:

3-1. Reboot your machine to a supported kernel, if one exists for the platform that you are trying to install on.
3-2. (11.2.0.3) Run “<GridHome>/bin/acfsroot enable” to enable the ACFS resources again.
3-3. (11.2.0.1, 11.2.0.2) Run “<GridHome>/bin/acfsroot reregister” to enable the ACFS resources again.

Summary: Checking the Functionality of ACFS post-install:

After having executed one of the above options, the following commands can be used to check the ACFS functionality:

a. Run “<GridHome>/bin/acfsdriverstate supported”. The result should be “True”.
b. Run “<GridHome>/bin/acfsdriverstate installed”. The result should be “True”.
c. “<GridHome>/bin/crsctl stat res ora.drivers.acfs -init” should report ONLINE on all nodes.
d. “<GridHome>/bin/crsctl stat res ora.registry.acfs” should report ONLINE on all nodes.

Note 6 - ACFS drivers are not being installed, after applying patch 13146560, without 11.2.0.3.2 installed:

Please follow the steps described in the attached document to implement the solution  <click here>.

Note 7 - Opatch (Bug: 16356407) conflict warnings reported during the installation of Patch: 12983005 – UEK 2.6.39 support:

If the Patch: 15876003 (GRID INFRASTRUCTURE PATCH SET UPDATE 11.2.0.3.5) is already installed, then when you try to install the Patch: 12983005 “2.6.39 (UEK) SUPPORT FOR ACFS” on the top, you will receive a patch conflict messages as follows:

 

ZOP-40: The patch(es) has conflicts with other patches installed in the Oracle Home (or) among themselves.

Following patches have conflicts. Please contact Oracle Support and get the merged patch of the patches : 15876003, 12983005

 

Solution: You will need to deinstall the Patch: 15876003 (rollback) and then apply Patch: 12983005 “2.6.39 (UEK) SUPPORT FOR ACFS”, which already includes the “GIPSU 11.2.0.3.5”.

 

Please look at the following document for a complete example:

 

=)> Note: 1547335.1 Opatch Conflicts Reported During The “Patch 12983005 < 2.6.39 (UEK) SUPPORT FOR ACFS >” Installation (Conflicts Between Patch: 12983005 & Patch: 15876003).

Note 8 - ACFS is certified and supported on both Enterprise and Standard Edition.

Note 9 - Oracle ACFS does not currently have the ability to push database operations directly into storage.

Note 10 - RHEL7 and OL7 support requires 11.2.0.4.4 or later (we do not certify ACFS on top of 11.2.0.[1,2,3]  due to dependency on other code in 11.2.0.4.4).

Note 11 - ACFS is supported on Super Cluster Application Domain only (no cell storage) and it requires  Engineered Systems GIPSU 12.1.0.2.5 as minimum.

Note 12 - Support for Signed Kernel Drivers:

Signed kernel drivers allow the kernel to verify that the code of the driver is unchanged. A signed driver has a public key which the kernel compares to a private key to verify the signatures match.

* Oracle Linux - Linux driver signing is required for "Secure UEFI" boot mode, as well as for UEK4 and later versions of the Linux Kernel. Oracle provides signed drivers for all Oracle Linux versions running both the RedHat Compatible Kernel and the Oracle UEK kernel, beginning with 12.2.0.1, as well as patch sets that have a bug fix for Bug 25098392.

* Red Hat Linux & Suse - driver signing is required for (UEFI) Secure Boot. See MOS note 2416501.1

* Windows - due to a discontinuation in the SHA-1 driver signing algorithm by Oracle, ACFS is not supported on Windows 2008 R1 in 11.2* or 12.*. For other versions of Windows, subject to the support Matrix above, Oracle provides signed kernel drivers.

* Solaris - Oracle provides signed kernel drivers beginning with 12.2.0.1 for all versions of Oracle Solaris.

Note 13 -A UEK patch for UEKR2 and UEKR3 was introduced that increased the kernel stack size. This patch caused panics and instability with Grid Infrastructure Drivers, including ACFS. This was resolved in UEK 2.6.39-400.281.1 and 3.8.13-118.8.1; see UEK Doc ID 2153952.1. Thus, ACFS is not supported with these UEK releases:

• 2.6.39-400.278.1 up to but not including 2.6.39-400.281.1
• 3.8.13-118.5.1 up to but not including 3.8.13-118.8.1

Note 14 - ACFS on AIX requires a user and group management solution that is integrated with IBM RBAC (Role Based Access Control) technology.This includes IBM provided user and group management software such as IBM Directory Server for IBM i (LDAP), but may disallow 3rd party user and group management software.

Please check with your user and group management software provider as to their support for IBM RBAC.

 Note 15 - OL7/RHEL7 Update 3 with kernel 3.10.0-514 and later supported with patch 25078431

 

Note 16 - Please look at the below doc for RHEL 7.4 and Oracle Linux 7

ALERT: "ACFS and AFD report "Not Supported" after installing appropriate Patches on RedHat or Oracle Linux.(Doc ID 2303388.1)

Note 17 - ACFS support for retpoline compilers with UEKR4:

Oracle provides enhanced Spectre and Meltdown fix mitigation for ACFS with the following patches:

1) UEK4 - Bug 27463879 - tracking bug for recompiling usm drivers with latest gcc - UEK

2) RedHat 6 and RedHat 7 - Bug 28069955 - retpoline protection for rh - acfs - usm - spectre

3) SLES11 and SLES12 - Bug 28142134 - retpoline protection for sles - acfs - usm - spectre
These patches provide retpoline support for the various kernel streams for Oracle Linux, RedHat Linux, and SLES Linux. For customers that choose to install a patch, it will supersede the support patch for your Vendor Kernel version as shown above in the roadmap for ACFS support platforms and versions matrix.

If this patch is not installed, when ACFS drivers are loaded, your kernel will fallback to IBRS protection - this is standard Linux behavior when running non-retpoline compiled drivers. Depending on your workload, this may cause severe performance issues. To check, run the following command on each node:
dmesg | grep -i -e 'retpoline' -e 'ibrs' -e 'ibpb' -e 'spectre'

A message will be printed for each module: <module>: loading module not compiled with retpoline compiler.