Lustre Administration

About Storage Controller or RAID Controller (refer to below [5] of its page 11)

"Note that in the case where there is no cache-mirroring link between the controllers, the cache on the controllers must be disabled entirely to ensure that the file system does not become corrupted in the event of a controller failure."

Reference:

1. Getting Started With Lustre 
2. Official Manual 
3. Lustre 101 and Lustre Administration Essentials 
4. A Performance Study of Lustre File SystemChecker: Bottlenecks and Potentials
5. Intel - Architecting a High Performance
6. TOREAD Inside The Lustre File System 
7. TOREAD A Performance Study of Lustre File SystemChecker: Bottlenecks and Potentials 
   Storage System
   

Lustre with LDISKFS vs ZFS:

• At-a-Glance Comparison of Lustre with LDISKFS vs ZFS 
• Benefits of ZFS* for Lustre* Deployments