Hello! On Jan 27, 2015, at 9:39 AM, E.S. Rosenberg wrote: > Is anyone using a swapfile stored on lustre, I did quick attempt and got a > "kernel: swapon: swapfile has holes" > error, however a naggle discussion from the days of lustre 1.6.x seems > to suggest that at one time it was supported….. I believe lloop device is geared towards being used as a swap file instead these days. It's small overhead and should work much better for that. > Another question: > To what extent does lustre in the staging tree of the kernel change > from release to release, we are currently using kernel 3.17 + lustre > 2.5.3 (on clients) at the moment we are not likely to upgrade the > kernel for a while unless we run into big errors or have issues/needs > with other programs that indicate a newer kernel but I am curious how > much (if any) gain there is from upgrading regularly… Currently staging tree lustre client is stuck somewhere close to 2.5.0 + fixes. No new features are going to be accepted from us by staging tree maintainer, but we try to feed fixes from our tree upstream.

If you do not have any significant issues, there's no rush to update it, I think.

Bye, Oleg

Hello! On Jan 27, 2015, at 9:39 AM, E.S. Rosenberg wrote: > Is anyone using a swapfile stored on lustre, I did quick attempt and >got a > "kernel: swapon: swapfile has holes" > error, however a naggle discussion from the days of lustre 1.6.x seems > to suggest that at one time it was supportedŠ.. I believe lloop device is geared towards being used as a swap file instead these days. It's small overhead and should work much better for that.