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grephappiness
Asked: 2016-11-03 12:35:57 +0800 CST

cfgadm hangs when attempting to attach SCSI device

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I'm trying to hot plug a EXB-8900 tape drive into Solaris 10 and having issues.

Here's the process I follow. Please note this has worked:

cfgadm -x insert_device c4

yes at the first prompt to suspend SCSI activity on the c4 HBA. Next I connect and power on the device then input yes to the second prompt to complete the operation. At this point the terminal hangs and even after waiting for quite some time nothing happens. I repeated this exact same process to connect a different tape drive (Mammoth-2) and it worked without any issues.

checking the logs showed nothing

cat /var/adm/messages

Any further ideas how I could troubleshoot whats happening?

Thanks,

solaris unix scsi

1 Answers

  1. I would never try to hot-plug a SCSI device. Different HBAs react differently but you will always get a scsi-reset which doesn't guarantee it will correctly (re)discover a new device.

    Do it properly by plugging it and rebooting to single user mode. The HBA POST will show you if it has seen the drive, and you can always check it is all ok in single user mode, if not shut down once more.

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