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HP StorageWorks Scalable File Share User Manual

Page 335

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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.