HP StorageWorks Scalable File Share - Manual (Page 335)

SFS20 RAID5 and ADG performance B–7
• Each array populated with twelve 250GB disks, configured as one 2TB LUN with ADG (RAID6)
redundancy
• Voltaire InfiniBand interconnect
• RAID5 configuration
• Four SFS20 arrays attached to each Object Storage Server
• Each array populated with eleven 250GB disks, configured as one 2TB LUN with RAID5
redundancy
• Voltaire InfiniBand interconnect
All results are based on tests using new, empty file systems with default MDS and OST mount options and
without quotas enabled.
Each client node writes a single file of 4GB with one and four stripes to a single Object Storage Server.
As a rule of thumb, write operations are slower when ADG redundancy is used than when RAID5
redundancy is used; read operations are roughly equivalent.