Disk data format

Standard format for data in RAID

The SNIA common RAID disk data format (DDF) defines a standard data structure describing how data is formatted across disks in a RAID group. The DDF structure allows a basic level of interoperability between different suppliers of RAID technology. The common RAID DDF structure benefits storage users by enabling in-place data migration or recovery after controller failure using systems from different vendors.[1]

DDF is an external metadata format that is compatible with the mdraid subsystem in the Linux kernel. The mdadm command-line utility is a part of the mdraid subsystem.[2]

## References

[edit]

1. ^ "Common RAID Disk Data Format (DDF)". SNIA.org. Storage Networking Industry Association.
2. ^ "Chapter 21. Managing RAID Red Hat Enterprise Linux 8". Red Hat Customer Portal. Retrieved 2023-01-06.

## External links

[edit]

* Common RAID Disk Data Format (DDF) Specification v2.0
* Using DDF volumes with Linux Kernel

This computer-storage-related article is a stub. You can help Wikipedia by expanding it.

|

* v
* t
* e

*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template