Broken or Irrelevant Andrew Warfield Citrix/UBC * in virtual - - PowerPoint PPT Presentation

▶

Jun 10, 2023 329 likes •455 views

File Systems*: Broken or Irrelevant Andrew Warfield Citrix/UBC * in virtual environments (at least). FS QCOW FS Random Filter Driver LVM Dm-foo VMFS LVM RAID + = apache.vhd cerne-abbas-giant.html semantics sausages Storage

SLIDE 1

File Systems*: Broken or Irrelevant

Andrew Warfield Citrix/UBC * in virtual environments (at least).

SLIDE 2

FS LVM

Random Filter Driver

Dm-foo VMFS LVM RAID QCOW FS

SLIDE 3

+ =

SLIDE 4

SLIDE 5

SLIDE 6

SLIDE 7

SLIDE 8

SLIDE 9

cerne-abbas-giant.html apache.vhd

SLIDE 10

sausages semantics

SLIDE 11

Storage interfaces and FS layout is influenced by a legacy of performance concerns. (defrag, buffer caches, weak consistency) Building interesting things that operate on VMs from the outside probably means throwing this all out. Also we’d need to rewrite file systems and applications….

SLIDE 12