Date: Mon, 13 Nov 2017 08:55:50 +0100 From: Andrea Venturoli <ml@netfence.it> To: freebsd-questions@freebsd.org Subject: USB HD problem Message-ID: <4743f7ef-4214-36b8-e03b-6fa6d03029c0@netfence.it>
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Hello. On a server I manage, we use an external WD USB HD to make backups. This has been working properly for two years. Now it's getting hard to recognize the HD when it's plugged in: camcontrol will show the "pass" device, but no "da" comes up. On the same box, another very similar HD still works fine. So I tried this HD on several other machines and the conclusion is that on two Windows ones it always works, while on five FreeBSD I see very different results, ranging from always recognized to never recognized. On a couple of box it takes three or four tentatives before da0 comes up. When the disk is not recognized (pass, but no da) I get: > kernel: (probe0:umass-sim0:0:0:1): INQUIRY. CDB: 12 00 00 00 24 00 kernel: (probe0:umass-sim0:0:0:1): CAM status: CCB request completed with an error > kernel: (probe0:umass-sim0:0:0:1): Retrying command > kernel: (probe0:umass-sim0:0:0:1): INQUIRY. CDB: 12 00 00 00 24 00 kernel: (probe0:umass-sim0:0:0:1): CAM status: CCB request completed with an error > kernel: (probe0:umass-sim0:0:0:1): Retrying command > kernel: (probe0:umass-sim0:0:0:1): INQUIRY. CDB: 12 00 00 00 24 00 kernel: (probe0:umass-sim0:0:0:1): CAM status: CCB request completed with an error > kernel: (probe0:umass-sim0:0:0:1): Retrying command > kernel: (probe0:umass-sim0:0:0:1): INQUIRY. CDB: 12 00 00 00 24 00 kernel: (probe0:umass-sim0:0:0:1): CAM status: CCB request completed with an error > kernel: (probe0:umass-sim0:0:0:1): Retrying command > kernel: (da0:umass-sim0:0:0:0): got CAM status 0x44 > kernel: (da0:umass-sim0:0:0:0): fatal error, failed to attach to device > kernel: g_access(918): provider da0 has error > kernel: g_access(918): provider da0 has error > kernel: (probe0:umass-sim0:0:0:1): INQUIRY. CDB: 12 00 00 00 24 00 kernel: (probe0:umass-sim0:0:0:1): CAM status: CCB request completed with an error > kernel: (probe0:umass-sim0:0:0:1): Error 5, Retries exhausted I fail to understand the above codes. Searching the web only yielded a result in German, but AFAICT it's a similiar problem, not the exact one I have. Can someone shed some light on them? Any other suggestion? bye & Thanks av.
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