On Dec 14, 2005, at 12:00 PM, Jure Pečar wrote:
I attended a "iSCSI is great" seminar last week, where a similar question was raised. Their answer (people trying to sell us iSCSI gear) was something like: Most of the latency is in the disk (order of magnitude greater then the iSCSI overhead). Since iSCSI arrays are often larger then direct attached, then you have more disk spindles and then more throughput. Of course if the iSCSI array and the direct attached have the same number of spindles then you don't get the throughput advantage. We opted for direct attached (and using the replication code of 2.3 to create a hot spare) instead of iSCSI since it was significantly cheaper. -Patrick |
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