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30 Cards in this Set
- Front
- Back
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What does a resource pool allow?
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Server to be treated as a single entity from a management perspective, created consolidates management of server resources
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Using a resource pool how is authentication handled?
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Authirtication is performed to on place, eliminating the need to log in all XenServers
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What popular features does a resource pool enable?
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Xen motion and Automatic placement
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The pool uses what type model for management?
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Master/slave
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What does the pool master control?
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shared storage, network and VM meta data
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By default what server is elected the pool master?
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the first server in the pool
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What handles the locking of shared storage?
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Master Server in a pool
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How many sslave server erver maybe in a pool?
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15
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How does XenCenter and CLI communicate through the management NIC?
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XML-RPC using SSL.
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What do the GUI and CLI connect to?
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Always to the master.
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Where are commands forwarded from secondary pool servers?
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to the master
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Do VMs need the same number of NICs?
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No, but the XenServers do
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How many servers in a pool?
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16 (1 master + 15 slave)
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How do you add a secondary server?
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Disconnect shared stoarage. Halt all VMs.
Ensure NICs match Ensure acess to shared storage |
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How long is the delay do a chance to a pool configuration?
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Instant.
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How long will a secondary search for a master?
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1 min
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How often will a secondary research for a master?
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3-5 minutes
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What happens to VM on a secondary server if it's removed from pool?
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They are destroyed
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How long will a server be down using XenServer?
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150-200ms
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What command copies virtual machines?
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xe vm-copy
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When is the restricting of resource pools needing to be the same version of XenServer relaxed?
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During rolling upgrades
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What are the requirements for a Xenserver joining a pool?
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-an Enterprise license is installed on the host
-it has a static IP address (either manually assigned or via DHCP); -it is not a member of an existing resource pool -its clock is synchronized to the same time source as the pool master (for example, via NTP) -it has no shared storage configured -there are no running or suspended VMs on the XenServer host which is joining -there are no active operations on the VMs in progress, such as one shutting down -the management NIC of the XenServer host which is joining is not part of a NIC bond |
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Can XenServer hoss in a pool containt a different number of physical interfaces?
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Yes
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What is not a requirement but strongly reocmmended?
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Having shared storage for the VMs ready
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What networking data is not configured automatically when installing XenServer?
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IP addres of maangement NICS, which were preserved.
Location of the mangement interface |
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What is the command to join a XenServer to a pool?
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xe pool-join master-address=<HOST> master-username=<root> master-password=<password>
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What command creates shaerd storage?
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xe sr-create
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What command displays the UUIDs of the resource pool?
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xe pool-list
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What command would you issue to eject a host from a pool?
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xe pool-eject host-uuid=<uuid>
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What happens to local disks when you eject a host from a pool?
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It's erased
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