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stec-inc / EnhanceIO

EnhanceIO Open Source for Linux
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Cache creation failed: get_device for cache device failed. #94

Closed f3bruary closed 9 years ago

f3bruary commented 9 years ago

I switched from Windows to Arch Linux and am trying to get SSD caching to work (intel SRT). It's a 500gb HDD with a 32GB SSD (msata).

$ sudo eio_cli create -d /dev/sda -s /dev/sdb -c my_first_enhanceio

Cache Name : my_first_enhanceio Source Device : /dev/sda SSD Device : /dev/sdb Policy : lru Mode : Write Through Block Size : 4096 Associativity : 256 [Errno 16] Device or resource busy Cache creation failed (dmesg can provide you more info)

From dmesg:

enhanceio: Cache creation failed: get_device for cache device failed.

If someone could help me out it would be greatly appreciated.

f3bruary commented 9 years ago

Had to use dmraid to detach /dev/sdb from a raid array I wasn't aware of. Then it worked.