No it isn't you just need to do proactive maintenance on your array... and/or backup your data.
If you use RAID5 on any size array with out making backups you will lose data. Does he really think that with the invention of 1TB+ drives that it's the first time two drives have failed at once?
If you use RAID5 on any size array with out making backups you will lose data. Does he really think that with the invention of 1TB+ drives that it's the first time two drives have failed at once?