CODEWITHSUNDEEP
linuxnetwork-programmingsynchronizationnfs
austin1howard
austin1howard

Reputation: 4955

Network File System mount, with local fallback?

I'm trying to set up a directory that is stored on a local (Linux) server and mirrored on several (windows) computers.

I've looked at options like Unison, but with the type of data being worked on it's very important to have instantaneous sync to the server.

I have also looked at NFS mounting (ie sftp, webdav, etc.), but these clients are taking real-time data and I can't afford any network connectivity problems.

What would be perfect is a combination of the two : NFS mount (and "instantaneous sync") for as long as the network is up, with a local fallback storage location in case there is a network problem. Any ideas?

Upvotes: 3

Views: 1374

Answers (1)

sehe
sehe

Reputation: 393557

You might consider using one of the following:

  • Block device emulation:

    • DRBD
    • iSCSI + RAID1

  • Distributed file systems:

    There are a number of file systems in this segment, with varying semantics and feature sets. I'm naming a few, though I haven't used any of those: GlusterFS, XtreemFS, Lustre.

I remember reading about a mirroring FUSE file system driver that was able to direct read traffic to the fastest (local) mirror using latency profiling. You could see if you can find it again here.

Upvotes: 1

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