Hi all
I've been reading up a little about data deduplication, and have been
in search for an OSS filesystem with dedup without much luck. While
testing snapshots and so on in LVM, I started wondering if dedup would
be better off in LVM than in the filesystem. Would it be possible/
efficient to add dedup to the LVM layer, or perhaps a layer above LVM?
This could make dedup work for all or most of filesystems. Make a hash
table with 4k (or whatever) blocks, make virtual blocks pointing to
the physical blocks and run a remapping/deduping job at night. If
written to, copy-on-write could be used to increase speed.
Is this nonsense, or might it be an idea?
roy
--
Roy Sigurd Karlsbakk
(+47) 97542685
roy@karlsbakk.net
http://blogg.karlsbakk.net/
--
I all pedagogikk er det essensielt at pensum presenteres
intelligibelt. Det er et elementært imperativ for alle pedagoger å
unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de
fleste tilfeller eksisterer adekvate og relevante synonymer på norsk.
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