[stgt] [PATCH 0/2] RFC - Double-linked list backing store.

[FUJITA Tomonori]

On Mon, 18 Aug 2008 15:47:00 +1000
Mark Harvey <markh794 at gmail.com> wrote:

> An alternative backing store primarily for SSC device which uses a meta-data header for each block of data.
> 
> Embedded with the metadata are forward & back pointers to next & previous headers forming a double-linked list of headers.

I think that everyone agrees on having the separate metadata. When we
discussed this last time, I thought that we use extended attributes to
store metadata. Looks like that your code uses the first bytes of a
file to store the metadata. Using extended attributes doesn't work?


> Patch 1/2 patch includes bs_tape and a couple of helper utilities for:
> - creating 'blank' media
> - Dumping media headers
> Patch 2/2 patches the tgt-core-test script which I use to setup the VTL.
> 
> Note: The bs_tape is almost at the same level of functionality as the bs_ssc without Richard Sharps recent patches.

Almost? What are the differences?

Well, I don't think that we need two ssc implementations. We need to
integrate two. Except for the metadata handling, what are the
differences between them?


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