Copied from https://console.kim.sg/xenserver-management-command-line/
In a pool without HA.
Check who is alive and dead
xe host-list params=uuid,name-label,host-metrics-live
Login to any of the slave and check if it’s in emergency mode
xe host-is-in-emergency-mode
View all server hosts
xe host-list
Elect a new Poolmaster.
xe pool-emergency-transition-to-master
Recover the other pool servers
xe pool-recover-slaves
Determine the VMs still running on that failed server.
xe vm-list is-control-domain=false resident-on=UUID_OF_Failed_server
Reset the power state
xe vm-reset-powerstate resident-on= UUID_of_failed_server –-force –-multiple
This server can not be forgotten because there are some user VMs still running.
Get list of servers
xe host-list
Find what’s runnong on each server
xe vm-list resident-on=58ee6a78-c20c-4069-b07d-0b092e15fc1c
Reset the power state
xe vm-reset-powerstate uuid=603432e2-c85c-42fa-7bcd-430ddef6688a --force xe vm-reset-powerstate uuid=062a61b6-0ee3-9383-adf9-e2a506e5e3be --force
Forget the dead poolmaster server
xe host-forget uuid=58ee6a78-c20c-4069-b07d-0b092e15fc1c
How to apply xenserver patches on CLI
Assign UUID to the patch
xe patch-upload file-name=path_to_update_file\XS000.xsupdate
Apply the patch using the generated uuid
xe patch-pool-apply uuid=
Confirm the patch
xe patch-list xe patch-list | grep name-label | sort
Export & import VM to windows share
Login to the server hosting the vm you wish to export and mount destination
mount -t cifs -o username=xxx@xxx.com.sg //192.168.1.9/Common /mnt/
Export/import your vm
xe vm-export vm=xxx filename=/mnt/xxx.xva xe vm-import filename=xxx.xva
Import vm to shared storage in a pool
xe sr-list xe vm-import filename=Ubuntu.xva sr-uuid=214b4445-ef9b-626f-ca8b-58b8cbf4b281
Umount them once completed
umount /mnt
Export vm to external USB drive
Verify USB drive
fdisk -l
Format USB drive if required
mkfs -t ext3 /dev/sdx1
Mount USB
mkdir /mnt/usb mount /dev/sdx1 /mnt/usb
Export vm using xenserver XAPI
xe vm-export vm=XXX filename=/mnt/usb/xxx.xva
Umount once completed
umount /mnt/usb
How to remove local SR (Storage Repository)
Identify UUID of SR you wish to remove
xe sr-list name-label=Local\ storage
Identify UUID of PBD (physical block device)
xe pbd-list sr-uuid=<UUID-OF-SR)
Remove by unplugging UUID of PBD
xe pbd-unplug uuid=<UUID-OF-PBD>
Remove completely by forgetting UUID of SR
xe sr-forget uuid=<UUID-OF-SR>
If you have trouble removing, check below logs
/var/log/messages.* /var/log/SMlog.*
How to add local SR (Storage Repository)
Find disk ID of new device
cat /proc/partitions ll /dev/disk/by-id
Create new SR type LVM
xe sr-create content-type=user device-config:device=/dev/disk/by-id/<scsi-xx> host-uuid=<host-uuid> name-label=”Local Storage 2” shared=false type=lvm
Create new SR type EXT
xe sr-create content-type=user device-config:device=/dev/sdx4 host-uuid=<host-uuid> name-label="Local EXT3" shared=false type=ext
Check VM running on which host
VM is running on which Host?
xe vm-list resident-on=
Check Xen server host spec & version
more /proc/cpuinfo more /etc/redhat-release xe patch-list xe patch-list | grep name-label | sort
Change Xenserver hostname
xe host-set-hostname-live host-uuid=xx-xx-xx-xx-xx host-name=xxxx
Troubleshooting HA
Get list of xenserver hosts (alive & dead)
xe host-list xe host-list params=uuid,name-label,host-metrics-live
Find what’s runnong on each host
xe vm-list resident-on=uuid-of-each-xen-server-host
Who is master now?
xe pool-list more /etc/xensource/pool.conf
Change pool master in HA mode
Check HA status
xe pool-list params=name-label,uuid,ha-enabled
Disable HA
xe pool-ha-disable
Choose a new host to become a new pool master
xe host-list xe pool-designate-new-master host-uuid=
Finally enable back HA
xe pool-ha-enable
Lost pool storage repository (SR) and heartbeat (lost everything)
Error: “The host could not join the liveset because the HA daemon could not access the heartbeat disk.”
Confirm that you lost everything and hosts are all in emergency mode
xe host-is-in-emergency-mode
Disable HA and unplug lost SR
xe host-emergency-ha-disable --force xe pool-emergency-transition-to-master xe sr-list name-label=XXX xe pbd-list sr-uuid=<UUID-OF-SR) xe pbd-unplug uuid=<UUID-OF-PBD> xe-toolstack-restart
# Never get to use below command xe pool-designate-new-master xe pool-emergency-reset-master
Use your backup to import your VMs
Adding a new network card to Xenserver
Scan to see if hwardware has dedected new NIC
lspci lspci | grep -i ethernet ifconfig -a
Scan and allow Xenserver to use new NIC
xe pif-scan host-uuid=xxxxxx-xxxxx-xxxx-xxxx-xxxxxx #You can get host uuid by xe host-list
Check for interface detected by Xenserver
xe pif-list
You may wish to set some custom param
xe pif-param-set uuid=<UUID of physical interface> other-config:ethtool-autoneg=”off” xe pif-param-set uuid=<UUID of physical interface> other-config:ethtool-duplex=”full” xe pif-param-set uuid=<UUID of physical interface> other-config:ethtool-speed=1000
To remove interface
xe pif-forget uuid=
Troubleshooting Xenserver
Temporarily enable DNS for ntp update
sudo echo "nameserver 8.8.8.8" | sudo tee -a /etc/resolv.conf /etc/init.d/ntpd restart
Restart toolstack on master
xe-toolstack-restart