Features/QED

Status

• Base QED is in qemu.git since 2010-12-17 and will form part of QEMU 0.14.
• Zero cluster patches on mailing list, qemu-iotests under development.
• Upcoming image streaming patches are prepared.

Features

• Open specification
• Fully asynchronous I/O path
• Strong data integrity due to simple design
• Backing files
  • Backing files may be smaller than the QED image
• Sparse files
  • Retains sparseness over non-sparse channels (e.g. HTTP)

Current work

• Features/QED/OutstandingCommunityRequests Outstanding community requests

Future Features

• Streaming
• Online defragmentation
• Trim
• Parallel submission
• Meta-data scan avoidance