Adaptec 412R User Guide - Page 89
I/O card, host I/O
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UPC - 760884139691
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Symptom SCSI Bus hangs, (continued). Troubleshooting Probable Cause I Faulty SAF-TE disk I/O card (JBOD or Daisy-chained enclosure) or host I/O card (continued). Solution I NOTE: A return to a normal condition is indicated by the disk drives coming back online. I After the faulty card is replaced, begin reconnecting the data cables on the SAF-TE disk I/O card, noting the SCSI bus and drives remain in a normal state. I Re-check the cables to the SAF-TE disk I/O card, host I/O card, and the host adapter. I Replace the SAF-TE disk I/O card or host I/O card. I If the problem still exists in a RAID configuration, with the primary enclosure isolated to the host system, follow the procedures above to test the connectivity and operation of the host I/O card. There are two host I/O cards installed in RAID configurations. You can move the cable to the second card, same channel connector to fault isolate the host I/O card. 6-5
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