On Sun, Dec 11, 2005 at 11:29:23PM +0900, Yanggun wrote:
> I did not find involved part with this in the document.
>
> I am sorry, inform it is what section.
Basically, the md driver acts like another hard disk. So a regular
setup looks like this:
---------------------------------
| |
| Applications (ls, cat) |
| |
---------------------------------
|
v
---------------------------------
| |
| Filesystem (ext3) |
| |
---------------------------------
|
v
---------------------------------
| |
| Block layer (sda1/sdb1) |
| |
---------------------------------
and a software RAID setup looks like this:
---------------------------------
| |
| Applications (ls, cat) |
| |
---------------------------------
|
v
---------------------------------
| |
| Filesystem (ext3) |
| |
---------------------------------
|
v
---------------------------------
| |
| Block layer (md0) |
| |
---------------------------------
|
v
---------------------------------
| |
| Block Layer (sda1/sdb1) |
| |
---------------------------------
The format of sda1/sdb1 is the RAID data that the md driver writes to
them. It form a complete layer of abstraction between your
applications and the actual devices you are storing data on.
--
Ross Vandegrift
[EMAIL PROTECTED]
"The good Christian should beware of mathematicians, and all those who
make empty prophecies. The danger already exists that the mathematicians
have made a covenant with the devil to darken the spirit and to confine
man in the bonds of Hell."
--St. Augustine, De Genesi ad Litteram, Book II, xviii, 37
-
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
