Recently I came across a client requirement where he wants to attach more than 100 EBS Volumes. After little but of investigations I found that its possible to attach 364 EBS volumes including the Operating System Disk. In order to achieve this number, when you attach the EBS volumes you should follow the disk name format as “/dev/sd[a – z ][1, 3 – 15 ]” ( Note that device name with number “2” didn’t worked when I tried. So the numbers is 1,3,4 … 15 )
eg: /dev/sda1 , /dev/sda3 , /dev/sdz15
Never use /dev/sd[a -z ] alone as name. It should always follow the number.
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