Posted Jul 8, 2006 22:20 UTC (Sat) by addw
Parent article: The 2006 Linux File Systems Workshop
One extra problem to put into the melting pot is "how do we back file systems up" ? The technology for this has not really advanced in decades, you basically choose: tar, cpio or dump (and I don't like dump 'cos the tape/... format is file system dependent).
It is nice to:
1) get a consistent file system backup
2) do full & incremental backups
3) backup extra metadata (dump does, the others don't)
4) backup sparse files w/out haveing to read zillions of NUL bytes
The old DEC AdvFS (on their OSF/1 boxes) had a nice feature where you could get a snapshot of the file system, via a sort of special mount, that allowed you to do (1).
The file system developers should not view this as being someone else's problem -- they can help.
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