On Mon, May 2, 2011 at 12:47 PM, R.Kanagaraj (RK) <[email protected]> wrote:
**** First of all, Please do not top post **** > > I followed the link http://wiki.centos.org/HowTos/SoftwareRAIDonCentOS5 and > configured RAID 1 with my Seagate 500 GB X 2 Hard disks everything is fine. Great. Now read up on "mdadm" because you never know when you may need it. CentOS in rescue mode gives you only CLI and in that environment 'mdadm' is your only friend. > I also tested it by disconnecting one hard disk at a time and it boots from > the next hard disk and vice versa. When both the hard disks are connected I > booted my system from HDD 1. and saved a file in my home and desktop. > > But when I disconnected my HDD 1 and booted my system from HDD 2. But the > file which i have saved was not in my home folder. > > When I disconnected my HDD 2 and booted my system from HDD1. The file was > there in my home. Hmmm. > This shows me that the actual purpose of RAID1 (Mirroring) was not happened > there. Please guide me. Send the output of "fdisk -l" You have not mentioned any time frame when you attempted the break testing. Even though you may be able to use a software RAID device immediately after it's creation, building the mirror images takes time. On a 250 GB device on my desktop, I have seen it take about 40 mins. On a 500GB it might take longer. See mirror progress in file "watch -n 10 cat /proc/mdstat" **** Reminder **** *** Use interleaved posting in your responses - delete irrelevant text **** Please do not top/bottom post **** -- Arun Khan _______________________________________________ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
