Citrix Command Center can be configured as a Syslog server for NetScaler. You can always opt to forward syslog events to other servers and does not have to be a Command Center server, but Citrix Command Center syslog capabilities may be adequate for your needs.
One of the coolest features of Citrix Command Center is NetScaler Backup. Not only you can perform a backup of NetScaler configuration, you can also perform a restore from within Citrix Command Center.
This is a simple guide on how to upgrade NetScaler 10.1 to 10.5 utilizing the NetScaler GUI interface. There is a command line option but for a limited number of NetScaler appliances, the GUI option can be a quick and efficient approach.