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