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* Each function called with a simplified virtual API
* Each function called with a simplified virtual API
* All functions re-entrant so we can remove the BKL
* All functions re-entrant so we can remove the BKL
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== Eliminate BKL from NFS client ==
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* Remove BKL dependency from attribute cache
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* Remove BKL usage from XDR layer
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* Remove BKL usage from RPC client and GSS
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* Eliminate BKL in NFS client proper
== NFS client build testing ==
== NFS client build testing ==

Revision as of 16:47, 17 August 2007

Stuff I'm playing with, thinking about, or watching admiringly...

Contents

Mount

Testing and documentation

  • Add real unit testing
  • Construct a set of specifications for mount behavior
  • Rewrite nfs(5)
  • Test "-o remount" -- handled by /usr/sbin/mount instead of /sbin/mount.nfs?

UI clean up

  • Make error reporting more useful
  • Complete internationalization

New features

  • Implement support for IPv6
  • Implement support for server failover options
  • Add scalable mounting (more efficient use of network resources; mountd connection caching)
  • Properly implement break-back retries

More notes

Rebuild the NFS server and client XDR layer from the ground up

  • More complete type checking and error reporting
  • Each function called with a simplified virtual API
  • All functions re-entrant so we can remove the BKL

Eliminate BKL from NFS client

  • Remove BKL dependency from attribute cache
  • Remove BKL usage from XDR layer
  • Remove BKL usage from RPC client and GSS
  • Eliminate BKL in NFS client proper

NFS client build testing

  • Builds kernel with "allmodconfig" and "allyesconfig"
  • Automated - no user intervention once started
  • Tests all patches in a series
  • Later add more static analysis for each patch
  • Need to add post-analysis tool that compares the build logs
  • Need to eliminate as many spurious warnings generated by the tool chain as possible

More notes

Advanced file sync tool

  • multi-purpose generic file system syncer - a file synchronization tool that runs on most Unix-flavored operating systems
  • one-way or bidirectional data synchronization
  • syncs file changes periodically or continuously
  • supports disconnected operation (later playback of changes)
  • can use advanced file system features to improve efficiency
  • the basic idea is to use an inotify-like mechanism to make the detection of file and directory modification more efficient


More notes

Unifying storage management on Linux

  • A easy-to-use graphical tool that can manage storage devices and pools, and file systems
  • Includes a wizard (like Roxio or Toast) that can start different applications depending on what is to be accomplished
  • Make it easy to create, manage, and back up very large data storage pools
  • Make it easy to export and secure data
  • Provide a framework for thinking about and documenting data management

More notes

Linux De-duplication appliance

  • Provide high capacity near-line storage for inexpensive disk-based backup
  • Based on content-addressable storage on top of RAID 6
  • Looks like one or more very large OSD LUNs or a very large NFS server

More notes

Construct NFS client performance tools based on /proc/self/mounstats

  • Update vmstat and iostat tools to provide statistics about NFS mount points
  • Construct new tools that provide fine-grained data about NFS mount points

Learn more about Object Storage Devices

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