Perform this task to configure the global parameters of UIS Manager.
System parameters include the following:
Basic System Parameters—Configure basic parameters for UIS Manager.
Customization Parameters—Configure UIS interface customization parameters.
NAS Cluster Server Parameters—Configure the IP address and login password of the NAS file storage cluster server on UIS to access the NAS file storage management page from UIS.
VNC Proxy Server Parameters—Configure VNC proxy server parameters.
Virtual Network Computing (VNC) enables you to remotely control another computer. It transmits the remote computer screen to the local computer over the network. VNC contains VNC clients and VNC servers. The VM consoles in UIS are VNC clients and VMs on the hosts are VNC servers. Operators might access the VMs within the data center from an external network. To ensure data security, you must specify a VNC proxy server for the VMs. The VNC proxy server is the only node that the data center exposes to external networks. The external network can communicate with VMs within the data center only through the VNC proxy server.
Shared File System Heartbeat Network—Configure the network segment where the heartbeat network for the shared file system of the hosts in the cluster resides. For two-node deployment, the storage front-end network is used as the shared file system heartbeat network by default. For deployment of three or more nodes, the management network of the host is used as the shared file system heartbeat network by default. You can select a network as the shared file system heartbeat network based on the storage device used by the hosts, available NICs, and management network or storage front-end network bandwidth.
HA Parameters—Configure the host heartbeat interval and the storage heartbeat interval. Host and storage heartbeat enables UIS to manage hosts, monitor HA resources, detect failed hosts and VMs in the cluster, and migrate failed VMs to available hosts.
Resetting system settings does affect shared file system heartbeat network settings.
On the top navigation bar, click System, and then select Parameters > System Parameters from the navigation pane.
Configure the system parameters as described in "Parameters."
Click Save.
Basic System Parameters
Operator Idle Timeout: Specify the idle timeout for the operators. An operator automatically logs off of the system when the idle timeout expires.
Login Failure Lockout Interval: Specify the time period during which the IP address that an operator uses to access the system is forbidden from logging in to the system. The timer starts for an operator's IP address after the operator fails to log in to the system consecutively for the specified times.
Max. Failed Login Attempts: Specify the maximum number of allowable consecutive login failures. If an operator fails to log in to the system for the specified times, the operator's IP address cannot log in to the system within the specified time period.
Max. Online Operators: Specify the maximum number of online operators. 0 indicates that the number of online operators is not limited.
Log Level: Select a log level. Options include Error, Warning, and Tip.
Alarm Retention Period: Specify the lifetime period of alarms.
Reclaimed VM Retention Period: Specify the lifetime period of VMs in the recycle bin. The system automatically deletes a VM in the recycle bin after the lifetime period of the VM expires but it does not delete the disk image files of the VM. A value of 0 indicates that VMs in the recycle bin will not be automatically deleted.
Monitor Refresh Interval: Select the refresh interval for the monitoring information about hosts and VMs. Options include 30 sec, 1 min, 5 min, and 10 min.
Automatic Migration Timeout: Specify the migration timeout period. If the system fails to migrate a running VM when the migration timeout period expires, the system will suspend the VM to speed up the migration. After the VM is successfully migrated, the system will resume the VM.
Monitoring Data Retention Period: Specify the time period for the system to retain monitoring data. On standalone-deployed UIS Manager, monitoring data is saved in root directory /. On a stateful failover system, monitoring data is saved in partition /var/lib/mysql-share, which is the database partition set during stateful failover system setup. As a best practice to avoid damage to the system, make sure this partition has enough space if you set this parameter to be longer than seven days.
Animations: Select whether to enable animation effects for the navigation tree.
Memory Check: Select whether to enable memory check for VM deployment. If you select On, the total memory size of all VMs deployed on a host cannot exceed 80% of the memory size of the host. The system will check the memory of a host while adding, cloning, or deploying VMs on the host.
Secure Mode: Select whether to enable the secure mode or not. After you enable the secure mode, the following restrictions take effect:
A storage volume can be used by only one VM.
The login names of operators cannot be modified.
An operator account can be used by only one user at a time.
Users can access UIS only through HTTPS.
Operation Log Retention Period: Specify the time period within which operation logs cannot be deleted.
Shared Storage Fault Isolation: Select the action to take when the shared storage of a host fails. Options include Restart Host and Do Not Restart Host. If you select Do Not Restart Host, you must enable HA for the cluster.
Host Memory Reservation: Configure whether to reserve host memory. If you select Yes, the system reserves 20% of the host memory or 10 GB host memory (whichever is smaller). The reserved memory of a host cannot be used for VMs started on or migrated to the VM.
Temp Directory for Uploaded Files: Enter a temporary directory for uploaded files.
CPU Overcommitment: Select whether to enable CPU overcommitment. Options include Yes and No. If you select Yes, the number of vCPUs bound to the physical CPUs of a NUMA node can exceed the number of the physical CPUs. If you select No, the number of vCPUs bound to the physical CPUs of a NUMA node cannot exceed the number of the physical CPUs.
Distributed Storage Assignment Check: Select whether to enable distributed storage assignment precheck. When you add a storage volume, if you have selected On for this parameter, the sum of storage resource size assigned to the storage volume and the used storage resource size cannot exceed 80% of the total storage resource size of the distributed storage cluster. If you have selected Off, the used storage resource size cannot exceed 80% of the total storage resource size of the distributed storage cluster. You might need to add storage volumes when you create a VM, deploy VMs by using a template, or attach disks to an existing VM.
VM IPv6 Address Management: Select whether to enable IPv6 configuration for VMs. If you select Yes, you can configure IPv6 addresses for VMs when you add, edit, or clone VMs, or deploy VMs through templates. When you view information about a VM, its IPv6 address is displayed. This parameter is available only in UIS enhanced edition.
CPU Overcommit Ratio: Enter the maximum ratio of excessive CPUs that a host can allocate to VMs running on the host to total CPUs on the host. For example, if you set this parameter to 200%, a host with 32 CPUs can allocate 96 (32 + 32 × 200%) CPUs to VMs.
Memory Overcommit Ratio: Enter the maximum ratio of excessive memory that a host can allocate to the VMs running on the host to the total memory of the host. For example, if you set this parameter to 20%, a host with 100 GB of memory can allocate 120 (100 +100 × 20%) GB of memory to VMs.
Monitor Node Adjustment: Set the state of monitor node adjustment. This feature allows the system to automatically adjust the number of monitor nodes based on the number of storage nodes for a storage cluster.
If the number of storage nodes is 3 or 4, the system changes the number of monitor nodes to 3.
If the number of storage nodes is between 5 and 10, the system changes the number of monitor nodes to 5.
If the cluster has 11 or more storage nodes, the system changes the number of monitor nodes to 7.
If you disable monitor node adjustment, you must manually set the number of monitor nodes. An even number of monitor nodes might cause split brain issues in a storage cluster. As a best practice, configure an odd number of monitor nodes. For more information about monitor node management, see "Manage monitor nodes." This parameter is not available if you select compute virtualization during system initialization. This feature cannot be enabled when the storage cluster has only two nodes.
Customization Parameters
System Name: Enter a name for the UIS system.
Copyright Info: Enter the copyright information on the login page.
Login Page Background: Enter the path where the login page background is saved.
Homepage Logo: Enter the path where the homepage logo is saved. The logo is displayed on the top left of the homepage.
Login Page Logo: Enter the path where the login page logo is saved.
Favicon: Enter the path where the favicon is saved.
Table Columns Separator: Configure whether to display the lines between columns.
NAS Cluster Server Parameters
Interconnect with NAS: Select whether to connect UIS to NAS. If you select Yes, enter the IP address, login username, and login password of the NAS cluster server. Then, you can access the NAS file storage management page of ONEStor from UIS.
NAS Server IP: Enter the management IP address of the NAS cluster server. In the current software version, only the management IP address of ONEStor is supported.
NAS Server Username: Enter the username of the ONEStor system administrator.
NAS Server Password: Enter the password of the system administrator.
VNC Proxy Server Parameters
Server IP: Enter the IP address of the VNC proxy server.
Login Name: Enter the username used to access the VNC proxy server.
Login Password: Enter the password for the user to access the VNC proxy server.
Shared File System Heartbeat Network
IP Address: Enter an IP address within the network segment where the shared file system heartbeat network resides. Assume that management network 192.168.10.0/24, service network 192.168.20.0/24, storage back-end network 192.168.30.0/24, and storage front-end network 192.168.40.0/24 are configured on a host in three-node deployment. To use the storage front-end network as the shared file system heartbeat network, you can set the IP address to an IP address in 192.168.40.0/24, 192.168.40.8 for example. If you do not specify any IP address, the management network is used as the shared file system heartbeat network.
Mask: Enter the subnet mask or prefix for the network segment where the shared file system heartbeat network resides.
HA System Parameters
Host Heartbeat Interval: Specify the interval at which CVK hosts send heartbeat packets to UIS. If a CVK host fails, the heartbeat is interrupted, and VMs on the host are migrated to other hosts in the same cluster after three host heartbeat intervals and three storage heartbeat intervals.
Storage Heartbeat Interval: Specify the interval at which CVK writes timestamps to the storage pool. If a storage network fails, the heartbeat is interrupted, and affected VMs are migrated to other hosts in the same cluster after three storage heartbeat intervals.
UIS on UniCloud VM Edition:
Public Access Link: Specify the URL for the public network to access the UIS on UniCloud VM edition. Then, users can click the button in the VM Resources area on the UIS on UniCloud Hybrid Cloud page to access the UIS on UniCloud VM edition. The UIS on UniCloud VM edition is accessible after you request a license for it.