Configure servers

This topic describes the hardware and software configuration requirements for servers, including the operating system, BIOS settings, disk mounting, and NIC settings.

Prepare operating systems

Operating systems for OAT and OCP

The following table lists the operating systems that support OceanBase Admin Toolkit (OAT) and OceanBase Cloud Platform (OCP).

Operating systems for OceanBase Database

The following table lists the Linux distributions supported for OceanBase Database.

Configure BIOS for OceanBase Database

Special settings

• In the Intel x86 architecture, we recommend that you:

  • Disable non-uniform memory access (NUMA).

  • Run the following command to set vm.swappiness to 0 in the sysctl.conf configuration file in the /etc/ directory.

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

    Apply the values configured in the sysctl.conf configuration file:

    [root@xxx /]
    $sysctl -p    
    

• In the AMD or Arm architecture, we recommend that you enable NUMA.

• In the Arm or Hygon architecture, we recommend that you modify the sysctl.conf configuration file in the /etc/ directory and set the kernel.numa_balancing, vm.zone_reclaim_mode, and vm.swappiness parameters to 0. The sample code is as follows:

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

  Apply the values configured in the sysctl.conf configuration file:

  [root@xxx /]
  $sysctl -p
  

BIOS options to be disabled

• Cstate

• Pstate

• EIST

• Power saving

BIOS options to be configured

• Automatic Power on After Power Loss: Always on

• Intel Virtualization Technology: Enable

• Hyper-Threading: Enable

• Hardware prefetcher: Enable

• VT-d: Enable

• SR-IOV: Enable

• Turbo Mode: Enable

• Energy/Performance Bias: Maximum Performance

  Note

  The method for modifying BIOS settings varies depending on servers. Refer to the operation manual of your server for specific steps.

Set kernel parameters of OBServer hosts

Mount disks

• Mounting point requirements of an OCP server

  Mounting point	Size	Description	Disk format
  /home	100 GB to 300 GB	The operation log disk of the components.	Ext4 or XFS is recommended.
  /data/log1	3 to 4 times the memory size	The log disk of the OCP MetaDB.	Ext4 or XFS is recommended.
  /data/1	Depends on the size of data to be stored	The data disk of the OCP MetaDB.	Ext4 or XFS is recommended.
  /docker	200 GB to 500 GB	The docker root directory.	Ext4 or XFS is recommended.

• Mounting point requirements of an OBServer node

  Mounting point	Size	Description	File system format
  /home	100 GB to 300 GB	The operation log disk of the observer process.	Ext4 or XFS is recommended.
  /data/log1	3 to 4 times the memory size	The log disk of the observer process.	Ext4 or XFS is recommended.
  /data/1	Depends on the size of data to be stored	The data disk of the observer process.	Ext4 or XFS is recommended.

  Note

  We recommend that you allocate at least 50 GB for a root directory. If you use Logical Volume Manager (LVM), we recommend that you specify the stripe parameters during the creation of directories. Here is an example:

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

Configure your NICs

We recommend that you configure two 10 Gbit/s NICs for optimal performance.

• You can name the bond mode as bond0 and choose mode1 or mode4. mode4 is recommended. If you use mode4, you must configure 802.3ad for the switch.
• We recommend that you name the NICs as eth0 and eth1.