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How to change the order of devices, like sda and sdb?

Updated 2009-11-18T05:06:39+00:00

Issue

Originally the system has one local disk /dev/sda, then connected with a new external storage (a storage array or a fiber-channel or a SAS disk). After the system was booted up, the internal disk on the server were changed to /dev/sdb while the external disks on the fiber storage were now /dev/sda.

Environment

Red Hat Enterprise Linux All Verisons

Resolution

The reason is kernel load different drivers in different order, the first loaded get the name /dev/sda.

If the two ...

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