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Prerequisites

Kubernetes​

  • Kubernetes 1.18+
  • CoreDNS is deployed

Unsupported platforms​

  • OpenShift
  • Rancher
note

Above platforms are not supported currently but will be in the future.

Hosts​

Linux distributions​

  1. CentOS/RHEL 7.4+
  2. Rocky Linux 8.4+
  3. Ubuntu 18+
  4. Kylin V10

Processor architecture​

  1. x86_64
  2. ARM64

Package dependencies​

  1. LVM2 is installed.
  2. For HA features, kernel-devel shall be installed and has a compatible version with the current kernel.
  3. For VolumeResize features, a tool to resize the filesystem is required. By default, xfs is used as the volume filesystem. Therefore, you need to install xfs_growfs on the host.
CentOS/RHEL, Rocky and Kylin
$ yum install -y lvm2
$ yum install -y kernel-devel-$(uname -r)
$ yum install -y xfsprogs
Ubuntu
$ apt-get install -y lvm2
$ apt-get install -y linux-headers-$(uname -r)
$ apt-get install -y xfsprogs

Secure Boot​

The HA feature does not support Secure Boot currently. Make sure Secure Boot is disabled：

$ mokutil --sb-state
SecureBoot disabled

$ dmesg | grep secureboot
[    0.000000] secureboot: Secure boot disabled

Data disks​

HwameiStor supports HDD, SSD, and NVMe.

For test, each host must have at least one unused drive with a minimal size of 10GiB.

For production, it is recommended to have at least one unused drive, protected by RAID1 or RAID5/6, with a minimal size of 200GiB.

Network​

For production, it is recommended to have a redundant 10Giga TCP/IP network, if the HA feature is enabled.