OpenZFS dotScale
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The document discusses the architecture of ZFS and how it has evolved. It describes ZFS as a combined file system and volume manager that provides data integrity and manages storage pools. It supports various access interfaces like NFS, SMB, iSCSI and can be used with virtualization technologies like containers and virtual machines. The document also shows how networking speeds and storage densities have increased dramatically over the last 30 years enabling technologies like ZFS.
OpenZFS dotScale
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- 14. NFS SMB Local files VFS Filesystem (e.g. FFS, ext) Volume Manager (e.g. LVM, SVM) NFS SMB Local files VFS DMU (Data Management Unit) SPA (Storage Pool Allocator) iSCSI FC SCSI target (e.g. COMSTAR) ZPL (ZFS POSIX Layer) ZVOL (ZFS Volume) File interface Block i/f ZFS Block allocate+write, read, free Atomic transactions on objects
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- 16. Hypervisor VM A VM B A A’ B B’
- 17. Hypervisor VM A VM B A A’ B B’ B’’
- 18. Hypervisor VM A VM B A A’ B B’
- 19. Hypervisor VM A VM B A A’ B B’’ B’ Hypervisor VM B
- 22. A1 B1 C1 D1 E1 F1 G1 H1 I1 J1 K1 L1 Hypervisor VM C VM D VM A VM B A2 B2 C2 D2 E2 F2 G2 H2 I2 J2 K2 L2 Hypervisor VM G VM H VM E VM F A3 B3 C3 D3 E3 F3 G3 H3 I3 J3 K3 L3 Hypervisor VM K VM L VM I VM J
- 23. A1 B1 C1 D1 E1 F1 G1 H1 I1 J1 K1 L1 Hypervisor VM C VM D VM A VM B A2 B2 C2 D2 E2 F2 G2 H2 I2 J2 K2 L2 Hypervisor VM G VM H VM E VM F Hypervisor VM K VM L VM I VM J A3 B3 C3 D3 E3 F3 G3 H3 I3 J3 K3 L3
- 24. A1 B1 C1 D1 E1 F1 G1 H1 I1 J1 K1 L1 Hypervisor VM C VM D VM A VM B A2 B2 C2 D2 E2 F2 G2 H2 I2 J2 K2 L2 Hypervisor VM G VM H VM E VM F Hypervisor VM K VM L VM I VM J A3 B3 C3 D3 E3 F3 G3 H3 I3 J3 K3 L3
- 26. Networking speeds up by <10,000x in 30 years 1986: 10Base2 (thin ethernet) standardized 2012: 40Gbit/sec commercially available
- 27. Vast increase in amount of storage: $/GB down by >1,000,000x in 30 years 1984: <10KB/$ 2014: >10,000,000KB/$ source: http://www.mkomo.com/cost-per-gigabyte-update
- 28. A B C D Hypervisor VM C VM D VM A VM B E F G H Hypervisor VM G VM H VM E VM F
- 29. A B C D Hypervisor VM C VM D VM B E F G H A’ Hypervisor VM G VM H VM E VM F VM A VM A
- 30. A B C D Hypervisor VM C Ctr D VM A Ctr B E F G H Hypervisor VM G Ctr H VM E Ctr F Lightweight containers (e.g. zones, jails, LXC)Virtual machines
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- 34. OpenZFS Linux FreeBSD illumosMac OS X illumos Linux FreeBSD Mac OS X Current End Goal
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