Perform this task to configure the global parameters of the UIS Manager.
System parameters include the following:
Basic System Parameters—Configure basic parameters for the 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 Console Parameters—Configure VNC console 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.
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.
Changing the shared file system heartbeat network might adversely impact upper layer services. Before you perform this operation, shut down all VMs and suspend the shared file system in the cluster.
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. The default is 5 minutes.
Monitor Data Polling Interval: Set the interval at which the system records performance data. The minimum interval is 10 seconds and the maximum interval is 120 seconds. The default is 30 seconds.
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.
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.
HTTPS Only: You can configure HTTPS only mode only when secure mode is disabled. After you enable HTTPS only mode, you can access the system only through HTTPS. Changing the status of HTTPS only mode will restart the system. To avoid affecting other tasks running in the system, do not change the status of this parameter when other tasks are running in the system.
Operation Log Retention Period: Specify the time period within which operation logs cannot be deleted.
Shared Storage Fault Isolation: Specify whether to restart all hosts that use shared storage when a shared storage failure occurs. Options include Do Not Reboot Host and Reboot Host. If you specify the value as Do Not Reboot Host, you must enable cluster HA.
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: Enter a temporary directory for uploaded or downloaded files.
Max External Snapshots: Specify the maximum number of external snapshots that can be stored for a VM.
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.
VNC Random Password: Select whether to use VNC random password for the VMs. After you enable this feature, the configured VNC passwords become invalid.
Start VM MAC Address: Specify a MAC address in the range of 0c:da:41:1d:03:30 to 0c:da:41:1d:ef:a8. The start VM MAC address is the start address of the MAC address pool used for VM MAC address allocation. A VM does not release its allocated MAC address when it is converted to a VM template.
End VM MAC Address: Specify a MAC address in the range of 0c:da:41:1d:16:b8 to 0c:da:41:1e:03:30. The end VM MAC address is the end address of the MAC address pool used for VM MAC address allocation. A VM does not release its allocated MAC address when it is converted to a VM template.
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 Commit Ratio: Specify the ratio of vCPUs assigned to VMs to physical CPU cores on a host. For example, if a host has 32 CPU cores and the ratio is set to 200%, the number of vCPUs assigned to VMs on the host cannot exceed 96 (32+32*200%).
Memory Commit Ratio: Specify the ratio of memory assigned to VMs to the physical memory on a host. For example, if a host has 100G memory and the ratio is set to 20%, the memory assigned to VMs on the host cannot exceed 120G (100+100*20%).
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 does not take effect and you must manually set the number of monitor nodes when either of the following conditions exists:
The UIS cluster has only two nodes.
This feature is disabled by default in a two-node UIS cluster and does not take effect even if you enable it.
The storage cluster has multiple racks.
Thin Provisioning: Select whether to enable the thin provisioning mode. You can select thin provisioning for a VM disk only after you enable this feature. This feature is disabled by default.
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.
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 Console 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.
VNC Console Password: Set the password for connecting to the VNC console. Once set, this password will be automatically applied to the VM's VNC console during VM creation. To set the VNC console password, select Edit to the right of this field and then enter the VNC console password. To delete the password, clear this field and save the configuration.
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.