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VCP 3.5 Virtual Consolidated Backup
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VCP 3.5 Virtual Consolidated Backup Description: VCP 3.5 Virtual Consolidated Backup Author: MariaU Other tests from this author Creation Date: 20/05/2009 Category: Computers Number of questions: 28 |
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What is Quiescing ? In the context of VMware Consolidated Backup, it is the process Used to perform filelevel and imagelevel virtual machine backups. A process of bringing the ondisk data of a physical or virtual
computer into a state suitable for backups. This process might include such operations such as flushing dirty buffers from the operating systems in memory cache to disk, or other higherlevel applicationspecific tasks. The virtual machine data you back up can include
virtual disks or Raw Device Mappings (RDMs), configuration files, and so on. Backup files that have changed since the last backup,
whether it is a full or incremental backup. Which are valid Backup methods(4) Differential backup. Backs up only those files that have changed since the last full backup. Full backup. Backs up all selected files. Computer level backup. Backs up all files on the computer Full virtual machine backup. Backs up all files that comprise the entire virtual machine. These files include disk images, .vmx files, and so on. Imagelevel (volumelevel) backup. Backs up an entire storage volume. Incremental backup. Backs up only files that have changed since the last backup, whether it is a full or incremental backup. What is VCP? In the context of VMware Consolidated Backup, it is the process Used to perform filelevel and imagelevel virtual machine backups. VMware Consolidated Backup is a backup solution offered by VMware Infrastructure 3. It is the recommended way to perform daily backups for virtual machines residing on a Fibre Channel or iSCSI SAN. The virtual machine data you back up can include virtual disks or Raw Device Mappings (RDMs), configuration files, and so on. Backup files that have changed since the last backup, whether it is a full or incremental backup. You use Consolidated Backup along with a thirdparty software to perform backups of virtual machine disks. Consolidated Backup centralizes backup on the VCB proxy, which can be used to protect many virtual machines. True False. The following are the key features of Consolidated Backup( Most major backup applications integrate with Consolidated Backup providing you with a fast and efficient way of backing up data in virtual machines. Consolidated Backup eliminates the need for having a backup agent installed in each virtual machine you want to protect. Most major backup applications cannot integrate with Consolidated Backup providing you with a fast and efficient way of backing up data in virtual machines. Consolidated Backup can read virtual disk data directly from your SAN storage device using Fibre Channel or iSCSI, or through the ESX Server I/O stack or use a network connection to an ESX Server host to access virtual disk data. You can not use Consolidated Backup against a single ESX Server host or with a VirtualCenter Server that manages a number of ESX Servers. Consolidated Backup can run in a virtual machine. Consolidated Backup supports filelevel full and incremental backups for virtual machines running Microsoft Windows operating system and imagelevel backups for virtual machines running any operating system. You can use Consolidated Backup against a single ESX Server host or with a VirtualCenter Server that manages a number of ESX Servers. Consolidated Backup provides the following methods of accessing virtual machine disk data: FC Mode Use with Fibre Channel and iSCSI storage to completely offload backups to a physical VCB proxy. SAN Mode Use with Fibre Channel and iSCSI storage to completely offload backups to a physical VCB proxy. Cold Migration Mode Use with NFS to perform backups by a VCB proxy set up in a virtual machine. HotAdd Mode Use with any type of storage to perform backups by a VCB proxyset up in a virtual machine. LAN Mode (NBD Mode) Use when your environment does not permit the use of the SAN or HotAdd modes. In SAN mode, You select this mode when your ESX Server stores its virtual machine disks on Fibre Channel SAN or iSCSI SAN. When using this mode, you can completely offload backups to a physical VCB proxy. True False. In SAN mode, In addition with Fibre Channel, you avoid moving data across the network. In this case,if the VCB proxy is your media server, you cannot get completely LAN free backups of your virtual machines. True False. In the SCSI HotAdd mode, you set up one of your virtual machines as a VCB proxyand use it to back up other virtual machines residing on storage visible to the ESX Server that hosts the VCB proxy virtual machine. This mode eliminates the need of having a dedicated physical machine for your VCB proxy and does not require you to expose SAN LUNs to the Windows VCB proxy. True False. In SCSI Hot- mode, you can use Consolidated Backup to protect any virtual disks on any type of storage available to your ESX Server host, including NAS or local storage. The only exception are physical compatibility RDMs. True False. In order to in run Consolidated Backup in the SCSI Hot-Add mode: You need to have ESX Server 3.5 or ESX Server 3i version 3.5 or later, VirtualCenter 2.5 or later and If you are using only the local storage devices, you need a VCB proxy virtual machine on each ESX Server host. You need to have ESX Server 2.0 or ESX Server 3i version 3.5 or later, VirtualCenter 2.5 or later and If you are using only the local storage devices, you need a VCB proxy virtual machine on each ESX Server host. You need to have ESX Server 3.5 or ESX Server 3i version 3.5 or later, VirtualCenter 2.0 or later and If you are using only the local storage devices, you need a VCB proxy virtual machine on one ESX Server host. You need to have ESX Server 3.5 or ESX Server 3i version 3.5 or later, and If you are using only the local storage devices, you need a VCB proxy virtual machine on each ESX Server host. In SCSI Hot-Add mode, Consolidated Backup creates a snapshot of the virtual disk to be protected and hot adds the snapshot to the VCB proxy, allowing it to access virtual machine disk data. The VCB proxy reads the data through the I/O stack of the ESX host. True False. When would you use LAN Node (NBD Mode) In this mode, you can use Consolidated Backup to protect any virtual disks on any type of storage available to your ESX Server host, including NAS or local storage. The only exception are physical compatibility RDMs. You select this mode when your ESX Server does not have access to a SAN, but uses local storage devices or NAS to store its virtual machine disks. You select this mode when your ESX Server stores its virtual machine disks on Fibre Channel SAN or iSCSI SAN. When using this mode, you can completely offload backups to a physical VCB proxy. In order to in run Consolidated Backup in the LAN mode: You need to have ESX Server 3.5 or ESX Server 3i version 3.5 or later, VirtualCenter 2.5 or later and If you are using only the local storage devices, you need a VCB proxy virtual machine on each ESX Server host. You need to have ESX Server 3.5 or ESX Server 3i version 3.5 or later, VirtualCenter 2.5 or later and Your virtual disks cannot be larger than 1TB each. You need to have ESX Server 3.5 or ESX Server 3i version 3.5 or later, VirtualCenter 2.0 or later and If you are using only the local storage devices, you need a VCB proxy virtual machine on one ESX Server host. You need to have ESX Server 3.5 or ESX Server 3i version 3.5 or later, and Your virtual disks cannot be larger than 5TB each. You are not required to have a dedicated physical server for your VCB proxy in LAN Mode. In addition to setting up a physical server as the VCB proxy, you have an option of configuring one of your virtual machines as the VCB proxy. True False. Before using Consolidated Backup, you do not need to configure and schedule a backup job for each virtual machine or a group of virtual machines. True False. Consolidated Backup supports imagelevel backups for virtual machines running any guest operating system and filelevel backups for virtual machines running Microsoft Windows operating systems. Locklevel backup Imagelevel backup Disklevel backup Filelevel backup. When you run filelevel backups, you first create a snapshot of your virtual machine. True False. Under certain circumstances, you cannot use Consolidated Backup for backing up data in a virtual machine.(4) You cannot use Consolidated Backup to backup virtual machines in a cluster. These virtual machines share an SCSI controller and snapshot operations cannot be performed on them. Consolidated Backup in SAN mode cannot back up virtual machines with disk images stored on a storage device that the VCB proxy cannot access. Consolidated Backup cannot back up RDMs in physical compatibility mode. ackup cannot back up RDMs in Virtual Compatibility mode Consolidated Backup cannot perform filelevel backups of virtual machines running operating systems other than Microsoft Windows. Whether you plan to use Consolidated Backup in the SAN or LAN mode, general requirements for Consolidated Backup include: A switch At least a 1GB NIC Backup software that supports Consolidated Backup. SQL Server Network adapter (NIC). A single ESX Server system and the VI Client, or multiple ESX Server systems and VirtualCenter to manage them. Backup hardware, such as a tape system. Microsoft Windows Server 2003+. To use Consolidated Backup in the SAN mode, additional requirements include, Fibre Channel or iSCSI SAN storage hosting virtual machines you plan to back up. True False. What is a VCB? The VCB proxy is a firewall, either physical or virtual, that runs Consolidated Backup, your thirdparty backup software, and an integration module for the backup software. The VCB proxy is a tape drive, that runs Consolidated Backup, your thirdparty backup software, and an integration module for the backup software. The VCB proxy is a machine, either physical or virtual, that runs Consolidated Backup, your thirdparty backup software, and an integration module for the backup software. . All versions of Windows, except Windows 2003 Enterprise Edition and Windows 2003 Datacenter Edition, assign drive letters to each visible new technology file system (NTFS) and file allocation table (FAT) volumes. To be able to use Consolidated Backup, you need to clear any unused drive letter assignments. True False. What can happen if you do not clear any unused drive letter assignments. If you do not perform this configuration step, data corruption for virtual machines using HA can occur. If you do not perform this configuration step, data corruption for virtual machines using SAN can occur. If you do not perform this configuration step, data corruption for virtual machines using RDM can occur. If you do not perform this configuration step, data corruption for virtual machines using MSCS can occur. To configure networking for your VCB proxy, follow these guidelines(2): Establish TCP/IP connections to port 902 for all ESX Server hosts that run virtual machines you plan to back up from the VCB proxy. Establish TCP/IP connections to port 903 for all ESX Server hosts that run virtual machines you plan to back up from the VCB proxy. If there is a firewall between the VCB proxy and the VirtualCenter, the firewall must permit TCP/IP connections to VirtualCenter. By default, the VirtualCenter expects incoming connections at TCP/IP port 443. If there is a firewall between the VCB proxy and the VirtualCenter, the firewall must permit TCP/IP connections to VirtualCenter. By default, the VirtualCenter expects incoming connections at TCP/IP port 27000. When you perform a first backup for a virtual machine, the virtual machine does not have to be powered on, otherwise the backup fails. True False. The ______ utility is a commandline utility that you use to restore data that has been backed up using imagebased backup. vcbRestore runs on the ESX Server 3 service console. vcbMount vcbRecover vcbRestore vcbStore. What are the 3 types of restore methods when using the vcbRestore Utility Global Restore Centralized Restore Per-Group Restore Direct Restore to a Virtual Machine. |