@dwhit14 - there's a lot of options to choose from - you're certainly not limited to only GPFS  - and also a myriad of considerations as to how it pertains to SAS.    For a quick overview of what shared file systems mean for SAS, check out:  Contemplating shared file systems for SAS https://communities.sas.com/t5/SAS-Communities-Library/Contemplating-shared-file-systems-for-SAS/ta-p/468263   And then for a deeper technical dive into the actual workings of shared file systems that affect their suitability for SAS applications, see:    Shared File Systems: Determining the Best Choice for your Distributed SAS® Foundation Applications https://support.sas.com/resources/papers/proceedings17/SAS0569-2017.pdf       ... View more