Dears, I hope I could find an solution for my problem in here.
I had a server with 2 hard drives, mirrored (RAID1).
You can see the attached pictures for physical and logical RAID setup.

One of the hard drives crashed and I replaced it and after booting the server I got an error "UNEXPECTED INCONSISTENCY..." (see attached picture)...

Is there anything I can do to get my data back.

Note: When I logged in for maintenance, I couldn't see me data.

Attached Thumbnails

     

What's the HW make/model: HP by any chance?

Yes, it is HP. If needed, I will get back to you with exact details.


HP ProLiant DL380 G7
HP Smart Array P410i Controller

You should have a support ctc with HP.
Also, try installing the correct PSP (product support pack); these supply a bunch of utils that can see the HW array components eg have a look at hpacucli tool.
eg http://www.digitalinux.com/2013/07/h...-commands.html
Check if that model has hot-swappable disks (heck, check the disk model...)

Dear Chris,
Thanks for your reply. I guess the hardware is working fine. As u can see from the controller GUI attached in my earlier post, The volume is working fine. I'm just guessing that the problem is in the Drives Identifiers in CentOS. Seems that CentOS is still having the old drive ID somewhere. I don't know where or how to read or configure RAID in CentOS

As I see, RAID1 is hardware raid and it's failure/repare dos not related to your error.
From my experience with HP hardware RAID, you can replace disk online and controller
will take care about.

Your screenshot is common for server went down without proper shutdown.
Do as suggested on screen itself: Give it root password to enter in maintenance mode
and run fsck on mentioned device.
Be accurate with answers. Usually it is "y", but not more than 3-5 times.
If you got a lot of errors, break fsck with Ctrl-C, mount problematic FS as read-only and make backup of it's content.