Grass Valley K2 Storage System Instruction Manual v.3.1 - Manual (Page 317)

September 6, 2006 K2 Storage System Instruction Manual 317
Backup and recovery strategies
Backup and recovery strategies
Procedures in this section are as follows:
• “About the recovery disk image process” on page 317
• “Creating a recovery disk image for storing on E:” on page 319
• “Creating a recovery disk image CD set” on page 320
• “Restoring from a system-specific recovery disk image on E:” on page 322
• “Restoring from the generic recovery disk image on E:” on page 323
• “Restoring from a recovery disk image CD set” on page 327
• “Activating the Windows operating system” on page 328
About the recovery disk image process
On the Level 1 device and on the K2 Media Server, there are three partitions on the
system drive to support backup and recovery strategies as follows:
• The C: drive is for the Windows operating system and applications.
• The D: drive is for the media file system (SNFS) and the media database (SQL).
This allows you to restore the Windows operating system on the C: drive, yet keep
the files on the D: drive intact. You can also restore the D: drive itself, however
your backup and recovery strategy is different for non-redundant and redundant
systems, as follows:
• On non-redundant servers (Levels 1, 2, and 3) the media file system program,
metadata, and journal files are on the D: drive. Also the media database program
and data files are on the D: drive. Therefore if you ever have a D: drive fault and
you need to recover the data files (metadata, journal, and database), you can only
restore them to the “snap-shot” contained in the most recent disk image you
created. When you do this you restore the program files as well.
• For redundant K2 Storage Systems (Levels 2R and 3R), the media file system
program is on the D: drive, but the metadata and journal files are stored on the
shared RAID storage. Also the media database program and data files are on the
D: drive, but the data files are replicated to the redundant server. Therefore, if
you ever have a D: drive fault, you can restore the media file system and
database programs from a recovery disk image, and then restore the data files
(metadata, journal, database) from their protected locations elsewhere.
• The E: drive is for storing a system image of the other partitions. From the E: drive
you can restore images to the C: and D: drives.
When you receive a Level 1 device or a K2 Media Server from the factory, the
machine has a generic image on the E: drive. This image is not specific to the
individual machine. It is generic for all machines of that type.
You receive a recovery CD with your Level 1 device or K2 Media Server. This
recovery CD does not contain a disk image. Rather, the recovery CD is bootable and
contains the Acronis True Image software necessary to create and restore a disk
image. You also receive a similar recovery CD for K2 Media Clients, but it is