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--- mdadm [2016/04/29 12:17]
steve
+++ mdadm [2016/04/29 12:32]
steve
@@ Line 98: / Line 98: @@
 RAID1 is for mirroring data across disks.  If one drive fails, the data is still preserved.
-Use fdisk to partition the new drives, and set them to type ''fd'' or ''Linux raid autodetect''.
-<code>
-fdisk /dev/sdb
-fdisk /dev/sdc
-</code>
 Create the RAID1 array using the two harddrives:
@@ Line 164: / Line 157: @@
 When ''mdadm'' is started building / rebuilding an array, it will create ''/dev/mdX'' entries, and remove the block devices that are part of the RAID (/dev/sda1, /dev/sdb1, fex). After stopping mdadm, run partprobe to load the device nodes. It will restart mdadm, but stopping it the second time will leave the device blocks there.
+=== Examples ===
+From the man page.
+Query the device to see if it's a RAID array, or part of one, etc.:
+<code>
+mdadm --query device
+</code>
+Scan the config file and assemble and start all arrays:
+<code>
+mdadm --assemble --scan
+</code>
+Shut down all arrays that can be shut down; not currently in use:
+<code>
+mdadm --stop --scan
+</code>
+Check devices that have RAID superblocks and print out results:
+<code>
+mdadm --examine --brief --scan --config=partitions
+</code>