Hubbry Logo
search button
Sign in
Write Ahead Physical Block Logging
Write Ahead Physical Block Logging
Comunity Hub
MainMain
History
arrow-down
starMore
arrow-down
Sign in
Sign in
bob

Bob

Have a question related to this hub?

bob

Alice

Got something to say related to this hub?
Share it here.

#general is a chat channel to discuss anything related to the hub.
Hubbry Logo
search button
Sign in
Write Ahead Physical Block Logging
Write Ahead Physical Block Logging
Community hub for the Wikipedia article
logoWikipedian hub
Write Ahead Physical Block Logging
Write Ahead Physical Block Logging
Main
Welcome to the community hub built on top of the Write Ahead Physical Block Logging Wikipedia article. Here, you can discuss, collect, and organize anything related to Write Ahead Physical Block Logging. The ...
Add your contribution
Media Collections
0
Timelines
0
Articles
0
Notes collections
0
Days in Chronicle
0
Write Ahead Physical Block Logging

Write Ahead Physical Block Logging (WAPBL) provides meta data journaling for file systems in conjunction with Fast File System (FFS) to accomplish rapid filesystem consistency after an unclean shutdown of the filesystem and better general use performance over regular FFS.[1][2][3][4] With the journal, fsck is no longer required at system boot; instead, the system can replay the journal in order to correct any inconsistencies in the filesystem if the system has been shut down in an unclean fashion.[3]

History

[edit]

WAPBL was initially committed into NetBSD in 2008, and first appeared with NetBSD 5.0 (2009).[5][2][6]

With NetBSD 6.0 (2012), soft updates (known as soft dependencies in NetBSD) was removed in favour of WAPBL.[7][8]

See also

[edit]

References

[edit]
  1. ^ Wasabi Systems Inc. (2008). "Wasabi JFS". Archived from the original on 2008-03-06.
  2. ^ a b Federico Biancuzzi (2008-05-18). "NetBSD WAPBL". O'Reilly Media. Archived from the original on 2010-01-07. Retrieved 2019-03-24.
  3. ^ a b The NetBSD Foundation, Inc. (2008–2012). "WAPBL(4) — Write Ahead Physical Block Logging file system journaling". BSD Cross Reference. NetBSD.
  4. ^ The NetBSD Foundation, Inc. (2015). "WAPBL(9) — write-ahead physical block logging for file systems". BSD Cross Reference. NetBSD.
  5. ^ The NetBSD Foundation, Inc. (2008). "sys/wapbl.h". BSD Cross Reference. NetBSD.
  6. ^ The NetBSD Project (2009-04-29). "Announcing NetBSD 5.0". NetBSD. Some highlights are: a preview of metadata journaling for FFS file systems (known as WAPBL, Write Ahead Physical Block Logging)
  7. ^ The NetBSD Project (2012-10-17). "Components removed from NetBSD". Announcing NetBSD 6.0. NetBSD. "softdep" support is no longer available in FFS; use wapbl(4) logging instead.
  8. ^ Adam Hamsik (2009-02-23). "Soft dependencies removed". NetBSD.
[edit]


Stub icon

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

Hub tags