9.3.1.6 tfactl dbcheck

Use the tfactl dbcheck command to collect diagnostic data from the Oracle Exadata machine to identify issues with operating system, file system, memory, and I/O system.

Syntax

Note:

You can run dbcheck command only on Oracle Exadata machines running Oracle Linux operating system.

tfactl dbcheck

Checking Filesystems ...
OS: devtmpfs Checking filesystem /dev : 0% used                                 ok
OS: tmpfs Checking filesystem /dev/shm : 1% used                                ok
OS: tmpfs Checking filesystem /run : 1% used                                    ok
OS: tmpfs Checking filesystem /sys/fs/cgroup : 0% used                          ok
OS: /dev/mapper/VGExaDb-LVDbSys1 Checking filesystem / : 81% used               ok
OS: /dev/sda1 Checking filesystem /boot : 14% used                              ok
OS: /dev/mapper/VGExaDb-LVDbOra1 Checking filesystem /u01 : 97% used            fail
OS: tmpfs Checking filesystem /run/user/0 : 0% used                             ok

Check Kernel Setting in sysctl.ctl:
OS: [fs.aio-max-nr] equals to 3145728                                           ok
OS: [kernel.msgmax] equals to 8192                                              ok
OS: [kernel.msgmnb] equals to 65536                                             ok
OS: [kernel.msgmni] equals to 2878                                              ok
OS: [kernel.sem] [1024 60000 1024 256 <> (expected) 250 32000 100 142]          fail
OS: [kernel.shmall] [56014625 <> (expected) 1073741824]                         fail
OS: [kernel.shmmax] [229435904614 <> (expected) 4398046511104]                  fail
OS: [kernel.shmmni] equals to 4096                                              ok
OS: [kernel.randomize_va_space] equals to 2                                     ok
OS: [vm.hugetlb_shm_group] [ <> (expected) 1001]                                fail
OS: [vm.min_free_kbytes] [2097152 <> (expected) 524288]                         fail
OS: [vm.nr_hugepages] [26265 <> (expected) 11264]                               fail

Check Kernel Setting in effect:
OS: [fs.aio-max-nr] equals to 3145728                                           ok
OS: [kernel.msgmax] equals to 8192                                              ok
OS: [kernel.msgmnb] equals to 65536                                             ok
OS: [kernel.msgmni] equals to 2878                                              ok
OS: [kernel.sem] [1024  60000   1024    256 <> (expected) 250 32000 100 142]    fail
OS: [kernel.shmall] [56014625 <> (expected) 1073741824]                         fail
OS: [kernel.shmmax] [229435904614 <> (expected) 4398046511104]                  fail
OS: [kernel.shmmni] equals to 4096                                              ok
OS: [kernel.randomize_va_space] equals to 2                                     ok
OS: [vm.hugetlb_shm_group] [0 <> (expected) 1001]                               fail
OS: [vm.min_free_kbytes] [2097152 <> (expected) 524288]                         fail
OS: [vm.nr_hugepages] [26265 <> (expected) 11264]                               fail