Contributed by D. John Shakshober
Linux customers often ask how iSCSI performs relative to Fiber Channel. The attached study analyzes the throughput of the Red Hat® Enterprise Linux® 4 iSCSI software initiator w/ 2 1-Gbit nics using an EqualLogic’s PS 3800XV and compares it to a single 2Gbit Fiber Channel Qlogic card running low-level I/O workloads and also running an industry standard Oracle 10g OLTP workload.
Red Hat Linux v4 I/O Performance case study (PDF)
Linux Performance with software iSCSI initiator and EqualLogic storage arrays approaches 2 Gbit Fiber-channel arrays running an Oracle 10g OLTP industry standard workload.
We also share some best practices in configuring multiple 1 Gbit cards for use with EqualLogic iSCSI storage arrays with Red Hat Enterprise Linux 4 U4.