System is Fedora Linux, there is RAID 0 array set up via mdadm that have bound together partitions /dev/sda4 and /dev/sdb4. Lately, /dev/sdb failed and became unreadable. Naturally, I started researching recovery options. I found some suggestions for specialized software and services, and a promising information that small files that fit into RAID stripe should be recoverable from remaining partition.
Unfortunately, I found very little information and instructions I could use. Therefore, I thought here might be place to find a good procedure to follow, and at the same time publish it for others in need.
How to access remaining 'half' of RAID array that resides on /dev/sda4?
How to determine what can be retrieved from it, and how to back such data up safely?
In particular, should I replace the failed disk and try to rebuild an array first? Why? (probably connected to first question).