On Saturday 30 August 2008 17:13, Michael Keulkeul wrote:

quoted text
> Hi all !

>

> I'm a modest Linux lover which has a lot of interest in file systems

> and storage. Nobody is perfect, You must know I'm working at netapp,

> but I hope this is going to change soon (Paris suxx, I must leave this

> town)

>

> I've seen a query for easy NVRAM not limited with write cycles, I may

> have a stupid trick that you could use : Use a cheap laptop (battery

> backed of course, 1G ethernet give better latencies) and export an

> iSCSI or AoE Lun using a ramdrive as backend. It's not as fast as

> memory, but it's as fast as flash and does not die that quickly on

> massive overwrites. Nice other thing is that multiple initiators can

> use it, so it's not as expensive as it appears.

>

> Let me know if I can help anywhere (I can translate into french for

> exemple) I'll do my best to support a project like this.

>

> Michael B.

Hi Michael,
A weak coder becomes a strong coder by reading code and writing code -

every day, for fun.
As it happened, my initial demonstration of Ramback (see "faster than

a speeding bullet") was done on a laptop.  I did not fail to notice

that the battery essentially turns a laptop into NVRAM, as long as you

have software like Ramback that can get the memory onto disk before

the battery runs out.
There is always a way to help with a project, just keep your eyes open

and watch what is going on.  Try cloning the mercurial reposititory

and see if that works for you, then run "make" and "make tests", and

see if the tests run ok.  Check out the output from the tests and see

if you can make sense of what is going on.  If not, come back here and

ask.
Try reading the code and figuring out how it works.  If you don't see

why it does something a particular way, ask.  That means we probably

should have a comment in the code there.  That kind of feedback is

helpful.
Regards,
Daniel
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