Error message is coming from REST API.
Caused by: java.io.IOException: EDC5141I Read-only file system.
at java.io.UnixFileSystem.createFileExclusively(Native Method) ~[na:1.8.0]
at java.io.File.createNewFile(File.java:1034) ~[na:1.8.0]
Zowe: all release
The ZFS must be mounted in RD/WR mode because Zowe needs to write logs in the USS path. Otherwise, one may encounter various errors.
If Read Only access is not permitted on a drive , It is better to have a separate mount point for runtime.