Tweaks & Settings
Installing DKMS on SLES 15 SP6
Task Install DKMS on SLES 15 SP6. Solution SLES 15 SP6 does not include DKMS in its standard repository by default. However, DKMS is available for SP6 via the openSUSE:Backports:SLE-15-SP6 repository (or Package Hub), so it can still be installed on ...
Migrating AD controllers from VMware to OpenStack
Task Migrate AD controllers from VMware to OpenStack. Solution Key points to consider during the migration of AD controllers from VMware to OpenStack with Hystax Acura. Before the migration Run dcdiag and repadmin /showrepl to ensure there are no ...
Setting the receiver timeout for replication agents
Task Set receiver timeout. Solution Since version 4.2.2 there is an ability to specify a timeout for data transfer by replication agents. The default value is 60 minutes. The timeout parameter is stored in etcd. To configure it, use the following ...
Transferring a device between customers in Hystax Acura
Challenge А machine has not been discovered in ACP for a particular customer. It is assigned to a machine group of another customer. Solution For more details on how to resolve this issue, see our guide in the article Moving Machines Between Groups ...
Changing the volume type per device in the target cloud
Task Devices need to be replicated with a different type of volume in the cloud. Solution This instruction applies to AWS, K2 Cloud, Flexible Engine, and OpenStack clouds. The solution is available only for unprotected devices. To change the disk ...
Interpreting replication and performance data with Grafana
Task How to interpret data using Grafana. Solution To access the Grafana dashboards log in at http://<ACURA_IP>:30082. User: grafana_user; password: LxY83mXr. On the Home Dashboard page find: the list of useful dashboards global replication speed and ...
Viewing log analytics for Acura (Kibana)
Task How to view log analytics. Solution Find the instructions for versions 4.4 and above in the Acura Documentation. Below are the instructions for versions earlier than 4.4: 1. Use the Kibana service to view log analytics. It is available at: ...
Achieving consistent replication of Linux databases
To get consistent state of running databases on Linux, e.g. MySQL, PostgreSQL, use pre-backup and post-backup scripts, located in /usr/bin/hlragent/scripts/. These scripts are automatically called during the replication process. To flush the data, ...
Log file locations by agent type
Log files locations, by agent type: Agent type Log file location Windows replication agent %ProgramData%\Hystax\acura\LOG\repman.log %ProgramData%\Hystax\acura\LOG\hwragent.log.txt Linux replication agent /var/log/repman.log VMware replication agent ...
Configuring a new network interface for the Acura instance
Challenge Use TUI to set up a new network interface. Please refer to the KB article below if you are looking to perform this operation for an Acura (version 4.2 or newer) deployment in VMware: How to change network settings of an Acura instance in ...
Continuing to use Acura after changing its public IP address
Challenge Acura requires a new public IP, and the replications should continue working as before. Solution This article covers the process from the start, so skip to #2 if you have already configured a new IP. #1 To change Acura's public IP: Go to ...
Checking cloud performance on Azure
Task Check the performance of Azure cloud platform if you have noticed considerable delays or failures in Cloud Site creation or replications. The following test is useful if you would like to see the actual timings of cloud operations like resource ...
How to change network settings of an Acura instance in VMware (version 4.2 or newer)
Challenge Hystax Acura for VMware is deployed as a virtual machine to a source ESXi host. It uses DHCP for its NIC by default. However, these default settings might not work in case the source VMware infrastructure doesn't have DHCP enabled or ...
Custom settings for a replication agent when creating a new customer in ACP
Task When a replication agent is downloaded from the ACP, it is injected with the current network information vital for connecting to the Acura instance and discovering machines for the given customer. Depending on the actual layout, Acura may be ...
Changing the hostname of a VMware replication agent
Task Change the hostname of a VMware replication agent. Solution The VMware replication agent hostname ("hwragent", by default) can be changed from the agents's console. Go to the agent command line by pressing the "To console" button in TUI. Edit ...
How to edit the "hosts" file of a VMware agent
Task Edit the "hosts" file of a VMware agent. Solution The VMware agent's "hosts" file is mounted in the agent system and can be edited from its TUI. Perform the following steps: 1. Go to the TUI and select the “Agent options” menu. 2. Select “Edit ...
Excluding volumes from replication on the Windows agent
Task Set a volume exclusion for the Windows replication agent. Solution In case there are disks on the machines that are not needed for replication, they can be excluded by setting certain parameters in the cbt.conf configuration file: 1. Stop the ...
Renaming the cloud agent image in Hystax Acura
Task Change the name of the cloud agent image Solution "Hystax_CATI" is the default Cloud Agent image name used while we deploy Hystax Acura. Sequence of steps on an already deployed Acura: Rename the Cloud Agent image. Create a new customer, ...
Excluding block devices from replication on the Linux agent
Task Set a block device exclusion for the Linux replication agent. Solution In case there are disks on the machines that don't need to be replicated, they can be excluded by setting certain parameters in the cbt.conf configuration file. 1 Stop the ...
Enabling debug logging for the Hystax VMware Replication Agent
Task Turn on debug logging to perform advanced troubleshooting of Hystax VMware Replication Agent (HVRAgent) Solution Go to the TUI and select the “Agent options” menu Choose the “Enable debug logging” option You can see the logs in agent TUI or in ...
Enabling debug logging for the Hystax Linux Replication Agent (HLRAgent)
Task Turn on debug logging to perform advanced troubleshooting of Hystax Linux Replication Agent (HLRAgent) Solution Stop the HLRAgent service with the following command: sudo service hlragent stop Enable debug logs, set the value ...
How to change your password (manage passwords)
Task Change the password (manage passwords). Solution To change the password for the current user, perform the following steps: Click on the drop-down "Menu" list in the top right corner, select “Settings”. Click on the “Users settings” tab and reset ...
How to change network settings of an Agent in VMware
Challenge Hystax VMware Agent (HVRAgent) is deployed as a virtual machine to a source ESXi host. It uses DHCP for its single NIC by default. However, these default settings might not work in case the source VMware infrastructure doesn't have DHCP or ...
Enabling debug logs for the Hystax Windows Replication Agent (HWRAgent)
Task Turn on debug logging to perform advanced troubleshooting for Hystax Windows Replication Agent (HWRAgent). Solution HWRAgent is running as two separate processes - HWRAgent service and Replication Manager (Repman_x64.exe), so you need to turn on ...