RAID5 Failure, Again
This time I get (another) annoying RAID5 failure. The CentOS 4.7 server won't boot because it was unable to start the RAID5 array. Yes, this is the second time I stumbled upon this problem (see this Indonesian-written post ). I burned a new CentOS 4.7 DVD (using a new REAL server's DVD writer, no less), then I boot up the DVD, typed linux rescue in the boot command line, and tried to follow the exactly the same step I've done and written in this blog, but to no success: the system complains that the superblock doesnt match. Seems I forgot the new RAID5 configuration in this server. I forgot that I have reinstalled this server with SAP ERP Netweaver, creating two software RAID5 arrays in the process, and of course with different partitions. The partitions were: sda3, sdb3, sdc1, sdd2. The four partitions created a 215 megablock (thats about 100 GB, I think) md1 partition. Here's the chemistry: - The kernel won't add non-fresh member (sdd2) into the array, it kicks i...