Home > Storage > PowerScale (Isilon) > Product Documentation > Security and Compliance > Dell PowerScale OneFS: Security Considerations > Common SED concerns
This section covers common questions and concerns about SEDs.
To confirm the format process is still running, depending on the OneFS version, the formatting process is either displayed by dots or by percentage. OneFS displays a completed message once the format is complete.
Note: If an SED format process is interrupted for any reason, all SEDs in a node are unusable. The only recourse is to manually revert each drive using the PSID, as described in Cryptographic erasure after the SmartFail Erase stateCryptographic erasure after the SmartFail Erase state.