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

OAT/OCP operating systems

The following operating systems are supported for deploying OAT/OCP.

OceanBase Database operating systems

The following Linux operating systems are supported for installing OceanBase Database.

BIOS settings on OceanBase Server

Special settings

• In an Intel x86 environment:

  • We recommend that you modify the configuration file /etc/sysctl.conf and set the parameter vm.swappiness to 0. The procedure is as follows:

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

    Apply the settings in the sysctl.conf file:

    [root@xxx /]
    $sysctl -p    
    

• In an AMD or ARM environment, we recommend that you enable NUMA.

• In an ARM and Hygon environment, we recommend that you modify the configuration file /etc/sysctl.conf and set the parameters kernel.numa_balancing, vm.zone_reclaim_mode, and vm.swappiness to 0. The procedure is as follows:

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

  Apply the settings in the sysctl.conf file:

  [root@xxx /]
  $sysctl -p
  

BIOS options to be disabled

• Cstate

• Pstate

• EIST

• Power saving

• SMMU (ARM)

BIOS options to be configured

• Automatic Power on After Power Loss: Always on

• Intel Virtualization Technology: Enabled

• Hyper-threading: Enabled

• Hardware prefetcher: Enabled

• VT-d: Enabled

• SR-IOV: Enabled

• Turbo Mode: Enabled

• Energy performance: Maximum performance

  Note

  Modify the BIOS settings on different servers in different ways. For more information, see the manual for your server.

Disk mounting

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

  Mount point	Size	Purpose	Disk format
  /home	100 GB~300 GB	Component runtime log disk	We recommend using ext4 or xfs.
  /data/log1	3~4 times the size of memory	OCP metadata log disk	We recommend using ext4 or xfs.
  /data/1	Varies depending on the size of data to be stored	OCP metadata data disk	We recommend using ext4 or xfs.
  /docker	200 GB~500 GB	Docker root directory	We recommend using ext4 or xfs.

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

  Mount point	Size	Purpose	File system format
  /home	100 GB~300 GB	observer process runtime log disk	We recommend using ext4 or xfs.
  /data/log1	3~4 times the size of memory	observer process log disk	We recommend using ext4 or xfs.
  /data/1	Varies depending on the size of data to be stored	observer process data disk	We recommend using ext4 or xfs.

  Note

  We recommend that you allocate at least 50 GB to the root directory. If you use LVM, we recommend that you specify the --stripe-count parameter when you create an LVM volume. Here is an example:

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

Network card settings

We recommend that you configure two 10-GbE network cards:

• Name the bond0 interface. You can choose mode1 or mode4 for the bonding mode. We recommend that you choose mode4. In this mode, configure the 802.3ad protocol on the switch.
• We recommend that you name the network cards eth0 and eth1.