Originally posted by: dtoolman.dan

Does anyone know or can give me a status on this on the AIX roadmap?

Without the use of VxFS/VxVM on top ... does IBM AIX in its roadmap have support for SCSI UNMAP/TRIM in the pipeline? If so, when?

If not, why?

All feedback is appreciated, Thanks!

Dan

Originally posted by: bigfredi

Not like if there is any response at all on this subject, but it's more and more relevant as most of the arrays are thin provisioned.

For further visitors, AIX 7.2 TL1 appears to start some very rudimentary support on JFS2:

https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/Power%20Systems/page/Storage%20Space%20Unmap%20Support%20in%20AIX

But that only covers Filesystem Shrink / Delete and LV remove and reduce operations, no support for file operations or unmap known unused blocks

What is people doing to recover space on the arrays?

I wish it will be implemented at some point, although the 5 years and counting that is taking to SVC / Storwize to implement this, it's not promising