System recovery, backup, and restore, Recovery from system failure, Hardware failures – Dell PowerVault 715N (Rackmount NAS Appliance) User Manual
Page 39: Software failures
System Recovery, Backup, and Restore
Dell™ PowerVault™ 715N NAS Appliance System Administrator's Guide
System-State Backup and Restore
Installing Tape Device Drivers for Windows 2000 Backup and Recovery Tools
This section provides instructions on how to recover from a system failure and how to back up and restore the system
state. The following topics are discussed:
Recovery from system failure
System-state backup and restore
Supported Backup Software
Using Backup Software
Third-party backup software for network backups
Backing up persistent images
Installing tape device drivers for Microsoft® Windows® 2000
Recovery From System Failure
Because your NAS appliance is designed to have redundancy, it can recover from certain hardware and software failures.
In some situations, it can automatically recover, and in others, you must have administrator privileges and manually
intervene to recover the appliance.
Hardware Failures
To recover from the following hardware failures, use one of the following procedures:
If hard drive 0 fails, the system automatically boots from hard drive 1. To replace the failed hard drive, follow the
procedures in "
Advanced Disk and Volume Management
" section.
If hard drive 1 fails, the system automatically boots from hard drive 0. To replace the failed hard drive, follow the
procedures in "
Replacing Hard Drive 1, 2 or 3
" in the "
Advanced Disk and Volume Management
" section.
If hard drive 2 or 3 fails, the system automatically boots from the mirror hard drive 0 and 1. Hard disks 2 and 3
form the recovery operating system mirror. To replace the failed hard drive, follow the procedures in "
" in the "
Advanced Disk and Volume Management
" section.
If hard drives 0, 1, 2, and 3 fail, you must reinstall new hard drives and the operating system. To replace the failed
hard drives and reinstall the operating system, follow the procedures in "
Advanced Disk and Volume Management
Software Failures
To recover from the following software failures, use one of the following procedures:
If files in the main operating system files are missing or corrupt, you must have administrator privileges and
manually boot from the recovery operating system mirror hard drives 2 and 3. For instructions, see "
Advanced Disk and Volume Management
" section. After the system is running, you, as the
administrator, can boot the system back to the main operating system hard drives, and then perform a system-