Ok i've setup RAID1 of my system, where "sda1" will mirror itself on "sdb1", i did that yesterday, and when i type cat /proc/mdstat, it was showing me something is sync etc... Now what i want to knw is, how does the sync work i.e. How does the system know when to mirror?? Is there command line for it?? To be more specific how do i get "sda1" to sync/mirror onto "sdb1" every 12 hours?? Can anyone guide me please.
In root mailbox i got this message, should i worry or is it normal??
This is an automatically generated mail message from mdadm
running on mau.appletree.office
A DegradedArray event had been detected on md device /dev/md1.
Faithfully yours, etc.
P.S. The /proc/mdstat file currently contains the following:
Personalities : [raid1]
md0 : active raid1 sdb1 sda1
10241280 blocks [2/2] [UU]
md1 : active raid1 sda2
478142528 blocks [2/1] [U_]
unused devices: <none>