[SOLVED] Installing new RAID card causes existing arrays to have bad magic number
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Installing new RAID card causes existing arrays to have bad magic number
Has anyone ever experienced this before? I have two SAS RAID controller cards in a Dell server in slots 2 & 3, both with an array hanging off them. I went to install a third card into slot 1, but then when it boots it says two of my sd's have bad magic number in the super-block and it wants me to create an alternative one, which I don't want to do. If i remove the new card, the server boots perfectly like it did before I added the new card. Is the new card trying to control stuff that isn't hooked up to it because its in slot 1, so its confusing RHEL?
When you install the new card do you use the raid bios software to check that the arrays are correct? It might be that the new card is taking the old disks as it's array somehow. Might be a pci order issue. Move cards around.
Whatever you do don't change, just look. Better still make a backup before you try this.