linux raid 1: right after replacing and syncing one drive, the other disk fails - understanding what is going on with mdstat/mdadm
- by devicerandom
We have an old RAID 1 Linux server (Ubuntu Lucid 10.04), with four partitions. A few days ago /dev/sdb failed, and today we noticed /dev/sda had pre-failure ominous SMART signs (~4000 reallocated sector count). We replaced /dev/sdb this morning and rebuilt the RAID on the new drive, following this guide:
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