IBM NeXtScale System Planning And Implementation Manual page 243

Traditional storage solution
Clients
File Server 1
File / Data
servers
File Server 2
Custom dedicated
disk controllers
JBOD* Disk Enclosures
Figure 8-4 Traditional Storage approach versus GPFS Storage Server
The GPFS Storage Server includes the following main features:
Two base configurations: Model 24 (four JBODs) and Model 26 (six JBODs).
They allow an easy configuration of a high-performance storage solution that
can be attached to the IBM NeXtScale system through InfiniBand or Ethernet
networks.
Scalable building block approach. The two basic configurations are scalable
to large storage configurations by using them as building blocks. The final
storage system benefits from the aggregated performance of its building
blocks.
2 TB and 3 TB drives are available that provide an enormous storage capacity
with the high-density enclosures.
x3650
Migrated RAID
Migrated RAID
management to
management to
System x file
System x file
* JBOD stands for "just a bunch of disks" (that is, an array of hard drives)
Smarter storage solution
Clients
and disk
and disk
servers!
servers!
Chapter 8. Software stack
File Server 1
GPFS Native RAID
File Server 2
GPFS Native RAID
JBOD* Disk Enclosures
225