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32 Cards in this Set

  • Front
  • Back
What local storage options does XenServer support?
IDE, SATA, SCSI, SAS
What are the 6 remote storage options Xen supports?
Fibre channel SAN, iSCSI SAN, iSCSI San using HBA, Dell EqualLogic, NFS, Netapp Filer with ontap 7+
Where do virtual disks appear to XenServer?
corresponds to a logical volume in the control domain OR to a VHD on NFS
Where do physical disks appear on the XenServer?
/dev
What is a logical volume to a VM?
They appear as disk drives
What is the logical volume manager?
LVM turns storage devices into a storage pool
What is a storage repository?
Allows pooling of disk devices and stores on one or more VM virtual disk drives
What is fibre channel SAN?
Logical volume management over fibre channel using SAN. XenServer hosts support Fibre channel SANs and uses the emulex or Qlogic host bus adaptor
What are the two SAN HBA types supported with XenServer?
Emulex and QLogic
What storage standards support NIC bonding?
iSCSI and NFS
What storage type standards support sharing?
All excel local
What file systems permit thin provisioning?
Local, NFS, Equalogic and NetApp
What systems DO NOT permit resizing?
NFS
What does thew LVM do?
Turns storage devices into a pool of storage
What does Storage repository do?
Allows poolingof disk devices. Stores one or more VM virtual disk drives
What is a virtual disk?
Appears in a VM as individual disk devices.
Which storage type DOES NOT use LVM?
NFS
Logical volumes are created from the pool and exports to VM as what?
Virtual disk drives
How does the control domain see storage devices?
As nodes in /dev
What is a front end device?
Looks like a storage driver in the OS
What is the minimum recommended RAID setup for a control domain?
RAID1
What gives the best performance on a HP eca?
RAID 1 + 0
Is XenServer limited to 1 storage repository?
No, it may have "many" per the book
What technology allows third parties to create enhanced storage connections?
pluggable storage
What is a physical block device?
represenation of the interface between a physical host and attached storage repository
What physical block device configrations is needed for NFS?
IP address of the NFS server
What does Virtual Block Devices do?
Allows mapping between CDIs and virtual machines.
What can can virtual block devices provide?
Fine tuning of QoS, statistics and the bootability of VDI.
What two steps are needed to move VMs from local to remote storage?
Convert to remote storage and then copy the VM
Can a virtual disk size be shrunk?
No, this feature is disabled. Althrough theorteically possible
Which file system allow thin provisioning?
NFS
What tools do you use to claim increased disk space on a virtual disk?
Diskpart on windows. lvextend in Linux.