On Feb 27, 2010, at 11:00 AM, Thanos Makatos wrote:
> I have implemented a virtual block device in Linux that transparently
> compresses and decompresses data. In my implementation, the unit of
> compression is 4K. Multiple variable-size compressed blocks are stored in the
> same physical block
I have implemented a virtual block device in Linux that transparently
compresses and decompresses data. In my implementation, the unit of compression
is 4K. Multiple variable-size compressed blocks are stored in the same physical
block, which in principle requires a read-modify-write sequence.
On Fri, Feb 19, 2010 at 07:43:10AM -0800, Thanos Makatos wrote:
> Hello.
>
> I want to know what is the unit of compression in ZFS. Is it 4 KB or larger?
> Is it tunnable?
It is the ZFS filesystem block.
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Darren
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On 19/02/2010 15:43, Thanos Makatos wrote:
Hello.
I want to know what is the unit of compression in ZFS. Is it 4 KB or larger? Is
it tunnable?
I don't understand what you mean.
For user data ZFS compresses ZFS blocks these would be 512 bytes minimum
upto 128k maximum and depend on the confi
Hello.
I want to know what is the unit of compression in ZFS. Is it 4 KB or larger? Is
it tunnable?
Thanks.
Thanos
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