Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
19 Cards in this Set
- Front
- Back
|
Fixed hard disk image |
Image file with finite size. Wasteful for storage but efficient for processing |
|
|
Dynamic hard disk |
Specified max size that starts small and grows as needed |
|
|
Differencing hard disk image |
Child image associated with specific parent. System writes all changes made to data on the parent file to the child image to facilitate rollback
Like a snapshot |
|
|
VHD |
Virtual hard disk. 2tb limit Compatible with all hyperV |
|
|
VHDX |
64tb limit. Only compatible with server 2012 r2
Not backwards compatible |
|
|
Pass through disk |
Virtual disk that points not to an area of space on a physical disk but a physical disk drive itself installed on the host computer
VM must have exclusive access to the physical disk
Must take the disk offline in the parent OS |
|
|
Requirements for adding a physical hard disk to a virtual machine |
VM must have exclusive access to it. First take the disk offline in the parent OS by using the disk management snap in. After the disk is offline, it is available for selection in the physical hard disk drop down list |
|
|
Checkpoint aka Snapshot |
A way to revert a VM to a previous state at will. Captured image includes state, data, and hardware config at a moment in time. |
|
|
.AVHD or .AVHDX |
Checkpoint/Snapshot file type extension |
|
|
QoS IOPS |
Input Output Operations per Second. Allows you to manage the read write percentage allocated to to each VM
Aka throttling throughput to the disk |
|
|
SAN |
Store Area Network. Network dedicated to high speed connections between servers and storage devices.
Avoids limitations imposed by maximum number of devices you can directly connect to a computer |
|
|
Server Clustering |
Adding redundant servers so if one fails, the others can assume its role |
|
|
JBOD |
Just a Bunch Of Disk.
This type of array connects to the server by using an external scsi cable. The server must also have a scsi host adapter that provides the other connection for that array |
|
|
Serverless Backup |
Server initiates the job but after the backup begins, the data travels directly from one storage medium on the San to another. Eliminates LAN bottlenecks and storage server bottlenecks |
|
|
Fibre Channel |
High speed serial network technology originally designed for supercomputers but now associated with SAN networking. Can run over fiber or twisted pair |
|
|
WWNNs |
World wide node names |
|
|
WWPN |
World wide port names |
|
|
Clustering |
Creates fault tolerance |
|
|
Live Migration |
Copying one server to another location without shutting down the server |
