Server configuration

This topic describes the hardware requirements for a server, including the operating system, BIOS settings, disk mounting, network card settings, and software requirements.

Prepare the operating system

OceanBase Database can be installed in the Linux operating systems listed in the following table.

BIOS settings

Special settings:

• In an Intel x86 environment:

• We recommend that you modify the /etc/sysctl.conf file and set the vm.swappiness parameter to 0.

  [root@xxx /]
  $vi /etc/sysctl.conf
  vm.swappiness = 0
  

  Apply the values in the sysctl.conf configuration file:

  [root@xxx /]
  $sysctl -p    
  

• We recommend that you enable NUMA in an AMD- or ARM-based environment.

• We recommend that you modify the configuration file /etc/sysctl.conf in an ARM or Hlgo architecture environment and set the parameters kernel.numa_balancing, vm.zone_reclaim_mode, and vm.swappiness to 0.

  [root@xxx /]
  $vi /etc/sysctl.conf
  kernel.numa_balancing = 0
  vm.zone_reclaim_mode = 0
  vm.swappiness = 0
  

Apply the values in the sysctl.conf configuration file:

[root@xxx /]
$sysctl -p

BIOS must have the following options disabled:

• Cstate

• Pstate

• EIST

• Power saving

• SMMU (ARM)

You need to configure the following options in the BIOS:

• Automatic Power on After Power Loss: Always on

• Intel Virtualization Technology: Enable

• Serial port redirection (SOL console redirection): enabled

• Hyper-threading: enabled

• Hardware prefetcher: Enabled

• VT-d: Enable

• SR-IOV: Enable

• Turbo Mode: Enabled

• Energy performance: Maximum performance

  Note

  BIOS on different servers is modified in different ways. For more information, see the documentation specific to the server.

Disk mounting

• The following table describes the disk mounting requirements for OCP servers.

  Mount point	Size	Purpose	Disk format
  /home	100 GB to 300 GB	The log disk for components to store their operation logs.	We recommend that you use ext4 or xfs.
  /data/log1	3 to 4 times the size of the memory	The log disk for the OCP metadata database to store its logs.	We recommend that you use ext4 or xfs.
  /data/1	Varies depending on the size of data to be stored	The data disk for the OCP metadata database to store its data.	We recommend that you use ext4 or xfs.
  /docker	200 GB to 500 GB	The root directory for Docker to store its images and containers.	We recommend that you use ext4 or xfs.

• The following table describes the disk mounting requirements for OBServer servers.

  Mount point	Size	Purpose	File system format
  /home	100 GB to 300 GB	The log disk for the OBServer node to store its operation logs.	We recommend that you use ext4 or xfs.
  /data/log1	3 to 4 times the size of the memory	The log disk for the OBServer node to store its logs.	We recommend that you use ext4 or xfs.
  /data/1	Varies depending on the size of data to be stored	The data disk for the OBServer node to store its data.	We recommend that you use ext4 or xfs.

• The following table describes the disk mounting requirements for OMS servers.

  Mount point	Size	Purpose	File system format
  /data/oms	400 GB, which can vary depending on the size of the synchronization objects, the number of synchronization jobs, the frequency of DML operations on the synchronization objects, and the retention period of the store component.	The data disk for the OMS store component to store its data.	We recommend that you use ext4 or xfs.

  Note

  We recommend that you allocate at least 50 GB for the root directory. If you use LVM, we recommend that you create a logical volume with the striping parameter. Here is an example:

  lvcreate -n data -L 3000G obvg --stripes=3 --stripesize=128

Network card settings

We recommend that you configure two 10-Gigabit Ethernet network cards.

• Name the bonding interface bond0 or mode1 or mode4. We recommend that you use mode4. If you use mode4, configure 802.3ad on the switch.
• We recommend that you name the network cards eth0 and eth1.
• We recommend that you use the network service and not NetworkManager.

Software requirements

To deploy the OAT GUI, ODC, and OMS, you need to install Docker on these servers. The following table describes the version requirements.