Installing MongoRock on AWS

[mayankverma]

I am trying to install MongoRock on AWS by following instructions included here.
https://github.com/ParsePlatform/parse-server/wiki/MongoRocks

When I try to configure storage and use the command

"sudo mdadm —create /dev/md0 --level=stripe /dev/xvdb /dev/xvdc", I get error:
mdadm: An option must be given to set the mode before a second device
(/dev/md0) is listed

When I add double dash (-) to create,
"sudo mdadm **--**create /dev/md0 --level=stripe /dev/xvdb /dev/xvdc", I still get same error
mdadm: An option must be given to set the mode before a second device
(/dev/md0) is listed

And after some googling, seems like "--raid-devices" is missing... so I added that
"sudo mdadm --create /dev/md0 --level=stripe --raid-devices=2 /dev/xvdb /dev/xvdc" and get this error.
mdadm: cannot open /dev/xvdb: No such file or directory

Anyone here has been successfully able to install mongoRock on aws?
Any help is appreciated... :)

[flovilmart]

Are those drives mounted? I see in the provisioning instructions that the command line should create ephemeral storages on /dev/sdb and /dev/sdc. Maybe they are mounted on those paths.

[mayankverma]

ya for some reason it didnt.. I had to manually create the instance and add them...it worked after that.. 👍

[flovilmart]

alright then! glad you made it work!