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author | Christoph Anton Mitterer <mail@christoph.anton.mitterer.name> | 2013-07-10 22:42:46 +0200 |
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committer | Christoph Anton Mitterer <mail@christoph.anton.mitterer.name> | 2013-07-10 23:32:22 +0200 |
commit | 956a13fb850321bed8568dfa8692c0c323538d7c (patch) | |
tree | a8de7b15b1ef93648650899884472b641fc2182c /md.4 | |
parent | DDF load headers: if primary is invalid, don't check fields. (diff) | |
download | mdadm-956a13fb850321bed8568dfa8692c0c323538d7c.tar.xz mdadm-956a13fb850321bed8568dfa8692c0c323538d7c.zip |
align spelling of “RAID” and RAID levels
* Aligned the spelling of “RAID” to use captial letters in all places.
* Aligned the spelling of the RAID level names (LINEAR, RAID1, …) to use capital
letters in all places, except for the string “faulty” in places where not the
RAID level was meant.
Signed-off-by: Christoph Anton Mitterer <mail@christoph.anton.mitterer.name>
Diffstat (limited to 'md.4')
-rw-r--r-- | md.4 | 16 |
1 files changed, 8 insertions, 8 deletions
@@ -78,7 +78,7 @@ The metadata contains, among other things: .TP LEVEL The manner in which the devices are arranged into the array -(linear, raid0, raid1, raid4, raid5, raid10, multipath). +(LINEAR, RAID0, RAID1, RAID4, RAID5, RAID10, MULTIPATH). .TP UUID a 128 bit Universally Unique Identifier that identifies the array that @@ -101,7 +101,7 @@ array without superblocks is preferred. These include: LEGACY ARRAYS Early versions of the .B md -driver only supported Linear and Raid0 configurations and did not use +driver only supported LINEAR and RAID0 configurations and did not use a superblock (which is less critical with these configurations). While such arrays should be rebuilt with superblocks if possible, .B md @@ -118,7 +118,7 @@ written to the device and searched for on all paths. In this case, a MULTIPATH array with no superblock makes sense. .TP RAID1 -In some configurations it might be desired to create a raid1 +In some configurations it might be desired to create a RAID1 configuration that does not use a superblock, and to maintain the state of the array elsewhere. While not encouraged for general use, it does have special-purpose uses and is supported. @@ -159,7 +159,7 @@ arrays. .SS LINEAR -A linear array simply catenates the available space on each +A LINEAR array simply catenates the available space on each drive to form one large virtual drive. One advantage of this arrangement over the more common RAID0 @@ -317,7 +317,7 @@ are some similarities. A MULTIPATH array is composed of a number of logically different devices, often fibre channel interfaces, that all refer the the same real device. If one of these interfaces fails (e.g. due to cable -problems), the multipath driver will attempt to redirect requests to +problems), the MULTIPATH driver will attempt to redirect requests to another interface. The MULTIPATH drive is not receiving any ongoing development and @@ -325,7 +325,7 @@ should be considered a legacy driver. The device-mapper based multipath drivers should be preferred for new installations. .SS FAULTY -The FAULTY md module is provided for testing purposes. A faulty array +The FAULTY md module is provided for testing purposes. A FAULTY array has exactly one component device and is normally assembled without a superblock, so the md array created provides direct access to all of the data in the component device. @@ -610,7 +610,7 @@ is the processes of re-arranging the data stored in each stripe into a new layout. This might involve changing the number of devices in the array (so the stripes are wider), changing the chunk size (so stripes are deeper or shallower), or changing the arrangement of data and -parity (possibly changing the raid level, e.g. 1 to 5 or 5 to 6). +parity (possibly changing the RAID level, e.g. 1 to 5 or 5 to 6). As of Linux 2.6.35, md can reshape a RAID4, RAID5, or RAID6 array to have a different number of devices (more or fewer) and to have a @@ -621,7 +621,7 @@ Other possibilities may follow in future kernels. During any stripe process there is a 'critical section' during which live data is being overwritten on disk. For the operation of -increasing the number of drives in a raid5, this critical section +increasing the number of drives in a RAID5, this critical section covers the first few stripes (the number being the product of the old and new number of devices). After this critical section is passed, data is only written to areas of the array which no longer hold live |