So, we have a PowerEdge R410 with 3x3Tb drives, set up in a RAID array, running CentOS 6.0. One of those dirves failed; I took it out and replaced it with a new, unformatted drive. But the server is not detecting it: green light on the drive is on, but running lsscsi does not show it, and neither does lshw. Is this an indication that the drive is not connecting or is there something more nefarious at work here?
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