Recovering from a failed RAID drive

I was trying to mount one of the disks from a failed RAID array. The disk was put in a USB enclosure and hooked to the machine. Here’s what I saw:

srv0:~# mount /dev/sdc3 /mnt/usb/
mount: unknown filesystem type 'mdraid'
srv0:~# mdadm --examine /dev/sdc
mdadm: No md superblock detected on /dev/sdc.

I panicked a little, then tried the following that worked:

srv0:~# mount /dev/sdc3 /mnt/usb/ -o ro -t ext3
srv0:~# ls /mnt/usb
bin   dev   etc   initrd.img  lib64	  media  opt   root  selinux  sys  usr	vmlinuz
boot  home  lib	      lost+found  mnt	 proc  sbin  srv      tmp  var

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