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I found on the net and it's all too complicated.

http://bcache.evilpiepirate.org/ for example seems like the official page for bache. Yet nothing is found there. How to install? How to set up? Nothing

Some tutorial says that I have to make bcache, where can I download it? How do I download it?

Some says that I have to recompile kernel. Some tutorial doesn't mention that. Which one is right?

Nothing makes sense.

Okay there is git. Then what? What to do with git?

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What is not real about this question? – Jim Thio Jan 27 at 11:29

closed as not a real question by jasonwryan, Shadur, manatwork, rahmu, uther Jan 25 at 11:54

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, see the FAQ.

2 Answers

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There's a good little tutorial at this location: http://atlas.evilpiepirate.org/git/linux-bcache.git/tree/Documentation/bcache.txt?h=bcache-dev (liked to from BCache's main website).

Take a look at the Getting Started and ATTACHING sections. If something specifically isn't clear, you should update your question and we could possibly help some more.

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It says I have to make bcache, where can I download it? How do I download it? – Jim Thio Jan 27 at 11:30
@JimThio You can download it using git. See bcache.evilpiepirate.org/#Getting_bcache – Thomas Apr 24 at 1:54
up vote 2 down vote

It will be a long walk through if you really need it.

bcache are kernel patch. Enhancement/feature that can be added to Linux kernel by patching the kernel source tree and compiling the kernel.

However it is still under testing and review, that's why it is not included in official kernel yet. Though this blog say it maybe soon. In the current state I would not recommend do it. Especially not on production server.

More over, putting in experimental kernel patches/features, kind of defeat the main purpose of using a distribution like CentOS/RedHat, for their stability.

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