Posted on April 25, 2017 at 1:12 am

Configure Control Domain (dom0) RAM memory in XenServer 6.1.0 and later:

1) SSH login as root on the XenServer host

2) Enter the following command to increase the RAM to 4GB:

/opt/xensource/libexec/xen-cmdline --set-xen dom0_mem=4096M,max:4096M

3) Shutdown all running VMs to avoid data loss:

*** This command may not be recommended for a pooled server ***

xe vm-shutdown --multiple

4) Reboot XenServer host using XenCenter or reboot command on console

5) Wait 2 minutes that XenServer host has rebooted

On XenServer 7.1 you can change the RAM via XenCenter:
https://support.citrix.com/article/CTX220763

Other Posts

• Detect VMWare Virtual Machine
• Detect Microsoft Virtual PC Virtual Machine
• Fix MariaDB 10.5 "Can't create test file" errors
• Use MariaDB and MySQL without Password (MySQL Backup)
• Check if a Trademark is already registered
• Make name server address permanent in /etc/resolv.conf
• InnoSetup error the servicemanager is not available
• InnoSetup disable DesktopIcon via command-line

Updated Posts

• Use cURL to check for SSL certificate issues:
• How to test Socks5 proxy with cURL
• How to use variables in a sed command
• Best Socks5 Servers for Linux Debian
• Error NO_PUBKEY in Google Cloud Debian Packages Update
• How to Run a Command with Time Limit in Bash Linux
• MySQL InnoDB log sequence number is in the future
• Download CSV Top 1 Million Websites by Popularity