Integration VMware Backups with Symantec Netbackup 7.1



Integration VMware Backups with Symantec Netbackup 7.1Backup and Recovery of VMware EnvironmentBy integrating VMware environment with Symantec Netbackup, 100% recovery of any VM is possible; i.e., no need to install/configure any application, no need to fine tune any of the OS components.Rakesh Krishnamurthy9/18/2012IntroductionNetBackup for VMware provides backup and restore of the VMware virtual machines that run on VMware ESXservers. NetBackup forVMware takes advantage of VMware vStorage APIs for data protection. The backup process is off-loaded from the ESX server to a VMware backup Backup for VMware does the following: Performs off-host backup of virtual machines (NetBackup client software is not required on the virtual machine). Off-host backup reduces the backup processing load on the VMware ESX server. Automatically creates quiesced snapshots using VSS (Windows only). Uses snapshot technology to keep virtual machines 100% available to users. Supports VMware vSphere as well as older VMware environments. Performs full backups and incremental backups, including block-level incrementals. Backs up the full virtual machine. Can also back up selected files (Windows only; requires VCB; not supported in case of vStorage API). Can restore selected files from the backup. Backs up the virtual machines even when they are turned off.Prereqisites for integration of VMware backups using vStorage API:VMware servers: ESX 3.5 update 2, or VirtualCenter 2.5 update 1.The VMware backup host must run on Windows 2003 or 2008 physical server.The snapshot requires 30% of space on the datastore for backing up the whole Backup for VMware uses the following components:Backup host : NetBackup for VMware uses a special Windows host that is called a VMware backup host (formerly called the VMware backup proxy server). The backup host is a NetBackup client that performs backups on behalf of the virtual machines. The backup host must have access to the datastores of the virtual machines.The backup host is the only host on which NetBackup client software is installed. No NetBackup client software is required on the VMware virtual machines.The backup host can be configured in either of the following ways:The backup host can be a NetBackup Windows client with a connection to separate master and media servers. The master servers and media servers can be Windows, UNIX, or Linux.Or, the NetBackup Windows client and a Windows master and/or media server can all reside on the same backup host. In this case, all NetBackup components (servers and client) must be backup Master Server : Manages the backups of virtual machines, by means of the NetBackup client that is installed on the backup backup Media Server : This can reside on the Backup Host itself or it can be a separate server.vCenter Server : The VMware vCenter Server (or VirtualCenter server) coordinates multiple ESX servers and workloads. It can migrate virtual machines from one ESX server to another. It also provides the ability to back up the virtual machines that are turned off.ESX Servers : The VMware ESX server presents a virtualized hardware environment to multiple virtual machines; each virtual machine runs an independent operating system. Users can run applications in the virtualized OS as if the OS was installed in its own physical computer. Types of Data Flow:LAN:SAN:VMware Backup Process :The Netbackup Master Server initiates the backup.The NetBackup client on the VMware backup host initiates a VMware snapshot on the virtual machine.In Windows; VSS synchronizes the file system on the VM.The VM Backup Host creates a snapshot on the VM datastore.The NetBackup client reads the snapshot from the datastores and writes the data to the NetBackup storage unit.Configuration Steps to be followed:Install the NetBackup 7.1 master server and media server. It is recommended to have the Netbackup Mediaserver and the VM Backup Host installed on the same host.Install the NetBackup 7.1 Enterprise Client license on the master server.Make the datastore visible to the VM Backup Host through zoning.Configure the VM Backup Host in the Netbackup Master Server as a VMware Backup Host.Set the Netbackup access credentials for the vCenter Server.Configure the Backup policy using FlashBackup-Windows Policy type.Configuration of Backup policy:In the NetBackup Administration Console, click Policies and select Actions > New > New Policy.Select the policy type as FlashBackup-Windows.Select the VM Backup Host in the Storage Unit.Select ‘Perform Off Host Backup’ and select the parameters as shown below:Click on Options and always keep the settings as shown below : Once the Attributes part is done, go to Schedules and define the schedule as per the requirement.Go to the Clients tab and here we need to select the VM’s for which the backup needs to be initiated.Click on New.A new window will appear, select Browse and select Virtual MachineExpand the tree and select the VM for which you need to perform the backup.Never select more than 8 VM’s from the same ESX, also ensure that we do not schedule the backups for the same ESX at the same time.In the Backup Selection tab, by default it would be ALL_LOCAL_DRIVES.Advantages:Supports any ESX datastore storage configuration including network-attached storage (NAS), direct-attached storage (DAS), Fibre, or iSCSI.Provides off-host backup capabilities with Fibre and iSCSI-based shared storage.Disaster recovery (entire VM restore) is simple.With off-host (shared storage) backups, backup processing is off-loaded to the NetBackup VMware Backup Host.No client software needs to be installed on any VMware component (including the VM) to enable backup processing.One hundred percent of all file permissions are accurately retained during singlefile restores (Windows and Linux).Supports advanced target-based deduplication.VMware Distributed Resource Scheduler (DRS) and VMware vMotion? aware.Automatic VM backup selection/inclusion via Virtual Machine Intelligent Policy(VIP)Best Practices:For a more efficient backup, the NetBackup media server and the VMware backup host should be installed on the same host.When creating virtual machines, use the same name for both host name and display name. If the policy's Client Name Selection is changed, the existing entries on the policy Clients tab still work.VMware recommends that you run no more than four simultaneous backups of virtual machines that reside on the same datastore.Make sure that the VMware backup host has enough memory to handle the number of simultaneous backups that occur.Include in a single NetBackup policy those virtual machines that use the same datastore. This practice lets you control the amount of backup-related I/O that occurs per datastore, to limit the backup effect on the target virtual Backup supports multiple backup hosts. When a single backup host is saturated with a backup process, another backup host can be added to increase backup throughput. ................
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