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How do you scan for new luns on linux?

I always forget this one. How exactly do you find those new fibre channel luns you carved and presented to the host? The zoning is there, but you need to have the OS look for it.

Well, if you have power path or other vendor software it will be different and I'll document that as well some day. Using the native software in RHEL 5.1 or greater, you do this.

How to add storage to oracle blade servers via qlogic and powerpath

I inherited a rhel4, 10g rac with EMC Clariion storage. Here's how I add more storage to keep it on life support.

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