Backups Flashcards
What information does a snapshot save?
- Virtual machine settings
■ Power state
■ Disk state
■ Memory state (optional)
What two files are associated with snapshots?
VMDK and VMSN
What are the 4 requirements for application aware snapshots?
ESX 4.1 or newer hosts are used.
■ The UUID attribute is enabled.
■ SCSI disks are used in the virtual machine.
■ Basic disks are used. (Dynamic disks are not supported.)
What are two snapshot restrictions?
- Raw disks, physical compatibility mode RDM disks, or iSCSI initiators being used
inside a guest OS, are not supported.
■ PCI vSphere Direct Path I/O devices are not supported.
What would cause a snapshot commit operation to fail?
Inadequate space on a datastore
Which version is VDP not available on?
Essentials
What are the three components that make up VDP
- vCenter Server
■ VDP Appliance
■ vSphere Web Client
What features are available in VDP Advanced and not in Basic
- 8TB of data not 2TB
- up to 400 VMs not 100
- Support for application-level replication
- Ability to expand current datastore
- Support for backup to a data domain system
- Granular restore on Microsoft Servers
- Automatic backup verification support
- Support for guest level backup and restores of SQL, Exchange and Sharepoint
Can VDP be upgraded to VDPA? Can the VDP Basic deployed size be change?
Yes, No
What factors affect the chosen datastore size?
■ The number of VMs being backed up
■ The initial size of the VMs to be backed up
■ The number of different OS types in the VMs
■ The number of different types of workloads in the VMs
■ The amount of daily I/O being generated
■ The chosen retention periods for the VM data
■ The anticipated growth rate for the vSphere environment
What are the sizing limitations for VDP
- vCenter Server can support up to 10 VDP appliances.
■ Only 1 VDP appliance can be deployed per ESXi host.
■ Each VDP appliance supports backing up 100 VMs.
■ Each VDP Advanced appliance supports backing up 400 VMs.
■ Each VDP appliance can back up a maximum of 8 VMs simultaneously.
■ VDP appliances operate independently of each other.
■ Independent virtual disks are not supported.
■ Physical compatibility mode RDMs are not supported
■ Independent virtual compatibility mode RDMs are not supported
■ VMs larger than 2TB that run Windows operating systems are not supported for
backup with VDP.
■ VMs with special characters in their names cannot be added to any VDP backup job.
The following characters cannot be used: ~ ! @ $ ^ % ( ) { } [ ] | , ` # \ / : * ? ‘ “& â
What are the 4 software requirements of VDP?
- vCenter Server: Version 5.1 or 5.5
■ vSphere Web Client
Web browser with Adobe Flash Player 11.3 or newer to access the vSphere Web Client
and VDP functionality
■ VMware ESX/ESXi (ESX/ESXi 4.0, 4.1, ESXi 5.0, 5.1, 5.5)
Is VDP 5.1 compatible with vCenter 5.5?
No
What are VDP deployment best practices?
- Deploy VDP appliances on shared VMFS-5 datastores.
■ Utilize virtual machine hardware version 7 or later for all VMs to ensure that Change
Block Tracking is used for backups.
■ Install VMware Tools in all VMs that will be protected with VDP.
■ VMs being backed up must be located in the same datacenter as the VDP appliance
Does VDP support DHCP?
No
