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Prerequisites

Kubernetes​

  • Kubernetes 1.18+
  • CoreDNS is deployed

Unsupported platforms​

  • OpenShift
  • Rancher
note

The aforementioned platforms are currently unsupported; however, they will be supported in the future.

Hosts​

Supported linux distributions​

  • CentOS/RHEL 7.4+
  • Rocky Linux 8.4+
  • Ubuntu 18+
  • Kylin V10

Supported processors​

  • x86_64
  • ARM64

Required dependencies​

  • LVM2 is installed.

  • For HA features, it is necessary to install kernel-devel with a compatible version to the current kernel.

  • The HA features module cannot be automatically installed on nodes with certain kernel versions and needs to be installed manually.

    Click to view all compatible kernel versions
    5.8.0-1043-azure
    5.8.0-1042-azure
    5.8.0-1041-azure
    5.4.17-2102.205.7.2.el7uek
    5.4.17-2011.0.7.el8uek
    5.4.0-91
    5.4.0-90
    5.4.0-89
    5.4.0-88
    5.4.0-86
    5.4.0-84
    5.4.0-1064-azure
    5.4.0-1063-azure
    5.4.0-1062-azure
    5.4.0-1061-azure
    5.4.0-1060-aws
    5.4.0-1059-azure
    5.4.0-1059-aws
    5.4.0-1058-azure
    5.4.0-1058-aws
    5.4.0-1057-aws
    5.4.0-1056-aws
    5.4.0-1055-aws
    5.4.247-1.el7
    5.3.18-57.3
    5.3.18-22.2
    5.14.0-1.7.1.el9
    5.11.0-1022-azure
    5.11.0-1022-aws
    5.11.0-1021-azure
    5.11.0-1021-aws
    5.11.0-1020-azure
    5.11.0-1020-aws
    5.11.0-1019-aws
    5.11.0-1017-aws
    5.11.0-1016-aws
    5.10.0-8
    5.10.0-7
    5.10.0-6
    4.9.215-36.el7
    4.9.212-36.el7
    4.9.206-36.el7
    4.9.199-35.el7
    4.9.188-35.el7
    4.4.92-6.30.1
    4.4.74-92.38.1
    4.4.52-2.1
    4.4.27-572.565306
    4.4.0-217
    4.4.0-216
    4.4.0-214
    4.4.0-213
    4.4.0-210
    4.4.0-1133-aws
    4.4.0-1132-aws
    4.4.0-1131-aws
    4.4.0-1128-aws
    4.4.0-1121-aws
    4.4.0-1118-aws
    4.19.19-5.0.8
    4.19.0-8
    4.19.0-6
    4.19.0-5
    4.19.0-16
    4.18.0-80.1.2.el8_0
    4.18.0-348.el8
    4.18.0-305.el8
    4.18.0-240.1.1.el8_3
    4.18.0-193.el8
    4.18.0-147.el8
    4.15.0-163
    4.15.0-162
    4.15.0-161
    4.15.0-159
    4.15.0-158
    4.15.0-156
    4.15.0-112-lowlatency
    4.15.0-1113-azure
    4.15.0-1040-azure
    4.15.0-1036-azure
    4.14.35-2047.502.5.el7uek
    4.14.35-1902.4.8.el7uek
    4.14.35-1818.3.3.el7uek
    4.14.248-189.473.amzn2
    4.14.128-112.105.amzn2
    4.13.0-1018-azure
    4.12.14-95.3.1
    4.12.14-25.25.1
    4.12.14-197.29
    4.12.14-120.1
    4.1.12-124.49.3.1.el7uek
    4.1.12-124.26.3.el6uek
    4.1.12-124.21.1.el6uek
    3.10.0-957.el7
    3.10.0-862.el7
    3.10.0-693.el7
    3.10.0-693.21.1.el7
    3.10.0-693.17.1.el7
    3.10.0-514.6.2.el7
    3.10.0-514.36.5.el7
    3.10.0-327.el7
    3.10.0-229.1.2.el7
    3.10.0-123.20.1.el7
    3.10.0-1160.el7
    3.10.0-1127.el7
    3.10.0-1062.el7
    3.10.0-1049.el7
    3.0.101-108.13.1
    2.6.32-754.el6
    2.6.32-696.el6
    2.6.32-696.30.1.el6
    2.6.32-696.23.1.el6
    2.6.32-642.1.1.el6
    2.6.32-573.1.1.el6
    2.6.32-504.el6

  • 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.

yum install -y lvm2
yum install -y kernel-devel-$(uname -r)
yum 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.

note

For virtual machine environments, please ensure that the disk serial number feature is enabled for each virtual machine. This will assist HwameiStor in better identifying and managing the disks on the host.

To avoid disk identification conflicts, please ensure that the provided virtual disk serial numbers are not duplicated.

Network​

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