Database Reference
In-Depth Information
Listing 7-7 shows an example of validating the disk storage for an ODA device.
Listing 7-7.
Validating ODA OS Disk Storage (V1 & X3-2)
[root@odax32 bin]# ./oakcli validate -c OSDiskStorage
INFO: Checking Operating System Storage
SUCCESS: The OS disks have the boot stamp
RESULT: Raid device /dev/md0 found clean
RESULT: Raid device /dev/md1 found clean
RESULT: Physical Volume /dev/md1 in VolGroupSys has 370206.05M out of total 599986.80M
RESULT: Volumegroup VolGroupSys consist of 1 physical volumes,contains 4 logical volumes, has 0
volume snaps with total size of 599986.80M and free space of 370206.05M
RESULT: Logical Volume LogVolOpt in VolGroupSys Volume group is of size 60.00G
RESULT: Logical Volume LogVolRoot in VolGroupSys Volume group is of size 30.00G
RESULT: Logical Volume LogVolSwap in VolGroupSys Volume group is of size 24.00G
RESULT: Logical Volume LogVolU01 in VolGroupSys Volume group is of size 100.00G
RESULT: Device /dev/mapper/VolGroupSys-LogVolRoot is mounted on / of type ext3 in (rw)
RESULT: Device /dev/mapper/VolGroupSys-LogVolOpt is mounted on /opt of type ext3 in (rw)
RESULT: Device /dev/md0 is mounted on /boot of type ext3 in (rw)
RESULT: Device /dev/mapper/VolGroupSys-LogVolU01 is mounted on /u01 of type ext3 in (rw)
RESULT: / has 7242 MB free out of total 29758 MB
RESULT: /opt has 46985 MB free out of total 59516 MB
RESULT: /boot has 65 MB free out of total 99 MB
RESULT: /u01 has 80271 MB free out of total 99194 MB
It is very important to keep an eye on the operating system space. Lack of nonshared disk space for various
components like the RDBMS or the operating system causes serious disruption of service on the appliance.
Depending on the configuration (bare metal or virtualized), the disk sizing and the spare disk space will be different.
This will be explained in detail in Chapter 10.
Shared Storage
Each ODA has storage that is shared between both nodes of the appliance. In ODA V1, the shared storage is built into
the appliance using storage expanders, whereas ODA X3-2 uses an external shelf to add a shared disk to the appliance.
Validating shared storage is very important in ensuring that all paths are available and that there are no issues in
the shared disk. Depending on your disk group, redundancy level (NORMAL or HIGH) disks can go bad and should be
replaced. Disk behavior can be monitored via the syslog or ASM Alert Log, but it is important to validate and ensure
that all paths to the disk are up and functional.
Listing 7-8 provides an example of storage validation. You can see the active disk paths, as well as the names of
the logical and physical disk devices.
Listing 7-8.
ODA Shared Storage Validation (V1 & X3-2)
[root@odax32 bin]# ./oakcli validate -c SharedStorage
INFO: Checking Shared Storage
RESULT: Disk HDD_E0_S00_373737408 path1 status active device sda with status active path2
status active device sdy with status active
SUCCESS: HDD_E0_S00_373737408 has both the paths up and active
RESULT: Disk HDD_E0_S01_373737516 path1 status active device sdb with status active path2
status active device sdz with status active
