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and now /dev/md0 is created. I am mounting it on a directory called /raid0 and put some data into it.
But, when I tried to set the partition /dev/hda6 as faulty by means of the
mdadm --fail /dev/md0 /deva/hda6, the o/p says it is set as faulty. but when I went to the /raid0 and accessed the data, it is still there. It should actually be not there, right? So, what mistake I am making. please help.
Thanks for that, but it is actually about other RAID methods, if one is faulty others will work, which is working for me. I am looking for RAID 0 implementation, in whihch even removing a faulty device also is not possible. Thank u.
Indeed, Raid 0 has no redunancy at all, if this raid0 is small and holds nothing important, format one half of it. But a Raid0 in that state just is not recoverable. Raid0 requires both partitions working as it literally splits all data half an half so once you lose half it's gone, unlike other raids which still have all the data should one device become faulty and can still operate but lose their redunancy (rather then the entire array)
I think I got the answer for this. Please let me know this is correct.
1.make 2 partitions, hda5 and hda6
2.Make it /dev/md0 with Raid level 0.
3.make the file system with ext3 and mount it to a folder, say /raid0
5.Touch file1 file2 file3.
10. cd /raid0
11.The system will give error message failing to read.
but if you do the same procedure to a raid1 or raid5 still we can read the file1 file2 file3.
thank you friends.