Increase the timeout before aborting a storage access attempt

Merged Bob Van Landuyt requested to merge bvl-increase-storage-check-timeout into master

To avoid most false positives of failing storage discussed in

In the past 7 days we only had a handful of peaks of IO-wait that exceeded 30 seconds:

nfs-file-08 as example:


So this should take care of most of the one off failures.

/cc @stanhu @DouweM