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authormadduck <madduck@3cfab66f-1918-0410-86b3-c06b76f9a464>2006-09-13 08:36:26 +0000
committermadduck <madduck@3cfab66f-1918-0410-86b3-c06b76f9a464>2006-09-13 08:36:26 +0000
commit2cab92271530d600fe02383277f91830138ede4b (patch)
tree8b583e62038ae544d0dc5cf26db86517dedca2ea /debian/FAQ
parentf76f67b278bd7b086570f9ad8dd3dcaec659a06c (diff)
* Reworked the documentation with respect to the use of "MD" and "RAID", and
added a FAQ entry on the meaning of "MD". Thanks to Frans Pop for his help!
Diffstat (limited to 'debian/FAQ')
-rw-r--r--debian/FAQ14
1 files changed, 13 insertions, 1 deletions
diff --git a/debian/FAQ b/debian/FAQ
index 0d93651b..0f2feec1 100644
--- a/debian/FAQ
+++ b/debian/FAQ
@@ -3,6 +3,18 @@ Frequently asked questions -- Debian mdadm
Also see /usr/share/doc/mdadm/README.recipes.gz
+0. What does MD stand for?
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+MD is an abbreviation for "multi device". The Linux MD implementation
+implements various strategies for combining multiple physical devices into
+single logical ones. The most common use case is commonly known as "Software
+RAID". Linux supports RAID levels 1, 5, 6, and 10, as well as the
+"pseudo-redundant" RAID level 0. In addition, the MD implementation covers
+linear and multipath configurations.
+
+Most people refer to MD as RAID. Since the original name of the RAID
+configuration software is "md"adm, I chose to use MD consistently instead.
+
1. How do I overwrite ("zero") the superblock?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
mdadm --zero-superblock /dev/mdX
@@ -26,7 +38,7 @@ Also see /usr/share/doc/mdadm/README.recipes.gz
this may not be what you want. Instead, zeroing the superblock will
(permanently) prevent a device from being considered as part of an array.
-2. How do I change the preferred minor of a MD array (RAID)?
+2. How do I change the preferred minor of an MD array (RAID)?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
See item 12 in /usr/share/doc/mdadm/README.recipes.gz and read the mdadm
manpage (search for 'preferred').