Date: Fri, 2 Jan 2004 14:55:47 -0600 From: Dan Nelson <dnelson@allantgroup.com> To: Toomas Aas <toomas.aas@raad.tartu.ee> Cc: questions@freebsd.org Subject: Re: swapping external hard drives Message-ID: <20040102205547.GC88798@dan.emsphone.com> In-Reply-To: <200401022045.i02KjnrM023470@lv.raad.tartu.ee> References: <200401022045.i02KjnrM023470@lv.raad.tartu.ee>
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In the last episode (Jan 02), Toomas Aas said: > However, when I umount /backup and remove the drive, the da0 device > somehow remains active (can be seen with 'camcontrol devlist'). When > I then plug in the second drive, it becomes da1, which spoils all my > beautiful backup plans. I would prefer that when I remove one drive > and plug in the other, it becomes da0 again. So I need to get the > 'old' da0 entry to go away when unplugging the drive. How can I do > that? > > I tried 'camcontrol rescan 0:0:0' after disconnecting the drive, but > it just hangs until I plug the drive back in. I tried 'camcontrol > reset 0', but this returned error 0x6 (IIRC). Try just "camcontrol rescan 0" to rescan the entire FW bus. I don't know if scanning just a single LUN will allow the whole device to disappear. I think it was more intended for SCSI/FC RAIDs, so you could add/remove/resize volumes. Just guessing here, though. -- Dan Nelson dnelson@allantgroup.com
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