Yes, this is why RAID5 isn't advised for (most) modern arrays anymore. The time it takes to rebuild a pool full of 10TB+ disks is going to be extremely long, a

Yes, this is why RAID5 isn't advised for (most) modern arrays anymore. The time it takes to rebuild a pool full of 10TB+ disks is going to be extremely long, and the chance of a second disk failing during that rebuild is much higher than smaller capacities like 2-3TB that would have been more common 10-15 years ago. For thia reason, its often recommended to use RAID6 for new arrays and treat the second failable disk as strictly a spare for during a rebuild.