Helpfull XenServer Commands
1 | xe help --all|more |
Show a list of XenServer CLI commands
1 | xsconsole |
Runs up the XenServer text based console
1 | xe-toolstack-restart |
Restarts the XenServer management tools
1 | ls –l |
List files in a Directory
1 | less /var/log/dmesg |
Display Boot Messages from Linux
1 | xe host-dmesg |
Xen Hypervisor Boot messages
1 | tail –f /var/log/xensource.log |
Look at xapi messages as they happen
1 | tail –f /var/log/xensource.log | grep xxx |
Look at xapi messages only for vm uuid xxx
1 | tail –f [log name] > [target filename] |
Send output to a file for analysis later
1 | cat /etc/xensource-inventory |
Display XenSource Inventory info
1 | xen-bugtool --yes |
Build a status report when xapi is down
1 | xe-backup-metadata -d –u [uuid of SR] |
Back up Pool metadata for all VMs
1 | tcpdump –i [inf] –vvv –w [filename] |
Get a Packet trace from [inf]. E.g. Inf=eth0, xenbr0, vif2.0 etc.
1 | top |
List the top processes running in Dom0
1 | xentop |
List top Xen processes
1 | mpstat 5 |
Processor stats in Dom0
1 | vmstat 2 |
Virtual memory in Dom0
1 | netstat –s |
Networking statistics
1 | iostat -d 2 6 |
Storage traffic stats
1 | list_domains |
Lists VMs that are running
1 | fdisk –l |
List the disk partitions
1 | hdparm –t /dev/sda3 |
Device read times for sda3 (normally local SR)
1 | pvs |
Show local and remote LVHD SRs
1 | ll /dev/disks/by-id |
Look at disk partitions
1 | lvs |
List logical volumes (virtual disks)
1 | vgs |
List LVM volume groups
1 | cd /var/run/sr-mount |
Look at NFS SRs
1 | df -h |
Shows how much disk space you have left
1 | dd if=/dev/sdb of=/dev/null iflag=direct bs=1M count=512 |
Read data performance from sdb.
1 | dd if=/dev/zero of=/dev/sdb oflag=direct bs=1M count=4096 |
Write performance on sdb. * Don’t use on disks with VMs on them!
1 | ifconfig |
Show info on NICs, virtual switches and vNICs
1 | brctl show |
Show info on virtual switches
1 | ethtool eth0 |
Info for NIC eth0
1 | mii-tool |
Info on NIC bonding
1 | iscsiadm -m discovery --type sendtargets --port 192.168.250.14 |
Discover iSCSI targets available to this server
1 | iscsiadm –m session |
Open iscsi sessions
1 | history |
Lists the history of commands you’ve used
1 | !136 |
Executes command #136 in the history
1 | history -w history-list.txt |
Writes the history info to a text file
