it´s a read, a write, or both operation? about load i think it´s a very big read (sdb) with a very low write (sda) the disk balance on raid1 is based on nearest (current position - next read position) disk on a sequencial read only one disk is better used i checked that raid1 'have this problem' but it´s a hardware limit, i didn´t found a solution yet , maybe others friends can found i made some read balance method some time ago, and the results is constant 1% of performace improvement on mixed read/write scenario, but i didn´t saw it as a good performace improvement since it must have many parameters to configure (time of disk seeks), and the load isn´t proportional, sometimes a disk use is very bigger than the other disk saw raid1 as a parallel/secure work, not as a performace tweak -- Roberto Spadim Spadim Technology / SPAEmpresarial -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
