ACFS Mystery

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

ACFS and AFD 12.2.0.1 Supported Platforms
Vendor          :  RedHat Linux 
Version         : 7 
Update / Kernel : Update 6 3.10.0-957 and later / 3.10.0 Red Hat kernels X86_64	
ACFS Bug or PSU	: 12.2.0.1.191015 (Base Bug 29963428)

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

Check current environment:

$ $ORACLE_HOME/OPatch/opatch lspatches
26928563;TOMCAT RELEASE UPDATE 12.2.0.1.0(ID:170711) (26928563)
26925644;OCW RELEASE UPDATE 12.2.0.1.0(ID:171003) (26925644)
26839277;DBWLM RELEASE UPDATE 12.2.0.1.0(ID:170913) (26839277)
26710464;Database Release Update : 12.2.0.1.171017 (26710464)
26247490;ACFS Interim patch for 26247490

OPatch succeeded.

$ $ORACLE_HOME/OPatch/opatch lsinventory|grep 29963428
$ $ORACLE_HOME/OPatch/opatch lsinventory -bugs_fixed|grep 29963428

$ uname -r
3.10.0-1062.12.1.el7.x86_64

ACFS should not be supported since 29963428 has not been applied, but  it is.

# rpm -q kernel --last
kernel-3.10.0-1062.12.1.el7.x86_64            Mon 11 May 2020 14:39:40
kernel-3.10.0-957.5.1.el7.x86_64              Thu 31 Oct 2019 16:26:21
kernel-3.10.0-862.2.3.el7.x86_64              Mon 28 May 2018 11:27:22

# lsmod | grep oracle
oracleacfs 4626640 2
oracleadvm 776776 8
oracleoks 662840 2 oracleacfs,oracleadvm

# modinfo oracleoks
filename: /lib/modules/3.10.0-1062.12.1.el7.x86_64/weak-updates/usm/oracleoks.ko
author: Oracle Corporation
license: Proprietary
rhelversion: 7.4
srcversion: C5110F596402987AF02F894
depends:
vermagic: 3.10.0-693.el7.x86_64 SMP mod_unload modversions
signer: Oracle Linux RHCK Module Signing Key
sig_key: DD:99:5B:15:5C:19:B3:A7:C3:EF:77:07:B9:69:E2:5F:96:39:66:6E
sig_hashalgo: sha256

# acfsdriverstate version
ACFS-9325: Driver OS kernel version = 3.10.0-693.el7.x86_64(x86_64).
ACFS-9326: Driver Oracle version = RELEASE.
ACFS-9212: Driver build version = 12.2.0.1 (ACFSRU)..

# acfsdriverstate installed
ACFS-9203: true

# acfsdriverstate supported
ACFS-9200: Supported

# acfsroot version_check
ACFS-9316: Valid ADVM/ACFS distribution media detected at: '/a01/app/grid/12.2.0/usm/install/Oracle/EL7/x86_64/3.10.0-693/3.10.0-693-x86_64/bin'

# crsctl query crs activeversion
Oracle Clusterware active version on the cluster is [12.2.0.1.0]

# acfsutil registry
Mount Object:
  Device: /dev/asm/shared-57
  Mount Point: /shared
  Disk Group: shared
  Volume: shared
  Options: none
  Nodes: all
  Accelerator Volumes:

# acfsutil info fs
/shared
    ACFS Version: 12.2.0.1.0
    on-disk version:       46.0
    compatible.advm:       12.2.0.0.0
    ACFS compatibility:    12.2.0.0.0
    flags:        MountPoint,Available
    mount time:   Thu May 14 23:16:59 2020
    mount sequence number: 0
    allocation unit:       4096
    metadata block size:   4096
    volumes:      1
    total size:   987842478080  ( 920.00 GB )
    total free:   849604771840  ( 791.26 GB )
    file entry table allocation: 42336256
    primary volume: /dev/asm/shared-57
        label:
        state:                 Available
        major, minor:          252, 29185
        logical sector size:   512
        size:                  987842478080  ( 920.00 GB )
        free:                  849604771840  ( 791.26 GB )
        metadata read I/O count:         80140
        metadata write I/O count:        269
        total metadata bytes read:       328335360  ( 313.12 MB )
        total metadata bytes written:    1187840  (   1.13 MB )
        ADVM diskgroup:        shared
        ADVM resize increment: 536870912
        ADVM redundancy:       unprotected
        ADVM stripe columns:   8
        ADVM stripe width:     1048576
    number of snapshots:  0
    snapshot space usage: 0  ( 0.00 )
    replication status: DISABLED
    compression status: DISABLED

$ crsctl stat res -t -w "TYPE = ora.volume.type"
--------------------------------------------------------------------------------
Name           Target  State        Server                   State details
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.shared.shared.advm
               ONLINE  ONLINE       xxxxxxx-01               STABLE
               ONLINE  ONLINE       xxxxxxx-02               STABLE
--------------------------------------------------------------------------------

$ crsctl stat res -t -w "TYPE = ora.acfs.type"
--------------------------------------------------------------------------------
Name           Target  State        Server                   State details
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.shared.shared.acfs
               ONLINE  ONLINE       lp-ora1-rh               mounted on /shared,STABLE
               ONLINE  ONLINE       lp-ora2-rh               mounted on /shared,STABLE
--------------------------------------------------------------------------------

Do you see what’s wrong and why ACFS is supported?