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Storage Software - Virtualization

Storage Software - Virtualization

Dell Storage

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Storage Software Virtualization

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Dell Storage Virtualization Software
 
Dell delivers best practices for protecting virtualized environments
Dell delivers a complete and validated solution for protecting VMware environments. As many customers consider migrating to virtual environments to optimize server and storage resources, data protection plays an important role. While data protection in a VMware environment uses similar methodologies as a physical server environment, there are important differences that require a new approach to protecting customer data. In addition, customer SLAs may require both file and application data protection and disaster recovery methods to keep their businesses running.
 
Protect both Virtual and Actual Machines
Protecting VMware environments requires two-steps for complete data protection and disaster recovery:
 
  • Protecting application and file-level data within a virtual machine.
    Customers still need to recover individual files or application data (such as an Exchange mailbox) in the event of data corruption or a virus. Best practices with VMware protection means protecting the virtual machine data in the same manner as you protect a physical machine – install application and file agents specific to a virtual machine (e.g., an Exchange agent for your virtual Exchange server and a file system agent for your virtual file server). Virtual machine data is usually backed up several times a day or a continuous protection solution is used to ensure a maximum RPO (recovery point objective). The actual backup schedules depend on (1) the business criticality of the application or file server and (2) the impact of the backup on server resources (e.g., processor load). A common scheme is to schedule backups around heavy use times (e.g., Exchange server backups occur during lunchtime and periodically throughout the day when traffic is lowest). In addition, customers can stagger backups within an virtual environment to ensure the same physical sever is not backing up each virtual machine at the same time (e.g., virtual machine #1 backups at 11:30 AM, virtual machine #2 backups at 12:30 PM, etc.).
     
  • Protecting the VMware files (VMDKs) for disaster recovery.
    Customers should also protect the VMDK files In the event of hardware failure or corruption of the actual VMware file. This ensure rapid recovery for an entire virtual machine without the need to reinstall a new image on the virtual machine. When disaster strikes the actual VMware files, you can quickly recover the entire virtual machine (i.e. VMDK file) and have your virtual server back up and running quickly. VMware backups usually just require a Linux file agent to protect the VMDK files. However, again customers should ensure that their VMDK backup jobs do not overlap with the backups of the virtual machine (e.g., virtual machine #1 backup occurs at 10 PM and VMDK #1 – which is the VMDK where virtual machine #1 lies – backup starts at 11:30 PM, ensuring virtual machine backup #1 finishes first).
     
  • Dell incorporates new VMware technology – With ESX 3.0, a new option for protecting your file server-based data is VMware Consolidated Backup (VCB). With VCB you can backup data from a SAN without using resources on your VMware server. For Windows 2003 Server file shares, you can use your backup server (or proxy host) to move the data directly from the SAN to your backup disk or tape. This ensures you are getting the most out of your virtual servers.

Resources

Protecting VMware Environments with CommVault Software and Dell Hardware
Using VMware infrastructure For Backup and Restore
Using Symantec Backup ExecTM 11d for Windows®  Servers with VMware
Veritas NetBackupTM  6.5 for VMware 3.x

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