Configure servers

This topic describes how to configure your servers.

Step 1: Check your operating system

The following table lists the Linux operating systems that support OceanBase Database.

Step 2: Set BIOS

Complete the following BIOS settings according to the operating system you selected.

Special settings

• For Intel-based operating systems, disable non-uniform memory access (NUMA). Additionally, we recommend that you run the following commands to set the vm.swappiness parameter in the /etc/sysctl.conf configuration file to 0.

  [root@xxx /]
  $vi /etc/sysctl.conf
  vm.swappiness = 0
  
  [root@xxx /]
  $sysctl -p    #Use the values configured in the sysctl.conf configuration file.
  

• For Hygon, AMD, Kunpeng, and AArch64 operating systems, enbale NUMA. Additionally, we recommend that you run the following commands to set the kernel.numa_balancing, vm.zone_reclaim_mode, and vm.swappiness parameters in the /etc/sysctl.conf configuration file to 0 for AArch64 and Hygon environments.

  [root@xxx /]
  $vi /etc/sysctl.conf
  kernel.numa_balancing = 0
  vm.zone_reclaim_mode = 0
  vm.swappiness = 0
  
  [root@xxx /]
  $sysctl -p    #Use the values configured in the sysctl.conf configuration file.
  
  
  

Other settings

• Disable the following BIOS options: C-State, P-State, EIST, Power saving, and Turbo mode.

• Configure the following BIOS options:

  • Automatic Power on After Power Loss: Always on

  • Intel Virtualization Technology: Enable

  • Hyper-Threading: Enable

  • Hardware prefetcher: Enable

  • VT-d: Enable

  • SR-IOV: Enable

  • Energy/Performance Bias: Maximum Performance

  Note

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

Step 3: Mount disks

Mount your disks according to the following requirements.

• Mounting point requirements on an OceanBase Cloud Platform (OCP) server

  Mounting point	Size	Description	Disk format
  /home	100 GB to 300 GB	The operation log disk of the components.	Ext4 is recommended.
  /data/log1	3 to 4 times the memory size	The log disk of the OCP MetaDB.	Ext4 is recommended.
  /data/1	Depends on the size of data to be stored	The data disk of the OCP MetaDB.	Ext4 is recommended. If the size of the data disk is greater than 16 TB, XFS is recommended.
  /docker	200 GB to 500 GB	The docker root directory.	Ext4 is recommended.

• Mounting point requirements on 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 is recommended.
  /data/log1	3 to 4 times the memory size	The log disk of the observer process.	Ext4 is recommended.
  /data/1	Depends on the size of data to be stored	The data disk of the observer process.	Ext4 is recommended. If the size of the data disk is greater than 16 TB, XFS is recommended.

• Mounting point requirement on an OceanBase Migration Service (OMS) server

  Mounting point	Size	Description	File system format
  /data/oms	400 GB. The disk size depends on the size of the objects to be synchronized, the number of synchronization tasks, the frequency of DML operations on the synchronization objects, and the retention period of the Store components.	The data disk for OMS Store components.	Ext4 is recommended.

  Note

  We recommend that you allocate at least 50 GB for a root directory and do not separately mount the /opt and /var directories. If you use Logical Volume Manager (LVM), we recommend that you specify the stripe parameters during the creation of directories. Example:

  shell lvcreate -n data -L 3000G obvg --stripes=3 --stripesize=128 <code></code>

Step 4: Configure your NICs

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

• You can name the bond mode as bond0, mode1, or mode4, where mode4 is recommended. If you use mode4, you must configure 802.3ad for the vSwitch.
• We recommend that you name the NICs as eth0 and eth1.
• We recommend that you use the network service instead of NetworkManager.

Step 5: Check your software

Install Docker on the servers where OceanBase Admin Toolkit (OAT), OceanBase Developer Center (ODC), and OMS are deployed. The minimum version requirement for Docker is CE 17.03 or later.