On Fri, March 25, 2016 9:55 am, m.roth at 5-cent.us wrote: > I don't think I've seen this with CentOS 6 or 5, but I had to repair an > external RAID box this morning. The server, running CentOS 7, has an LSI > HBA card in it, and it's presented to the system as /dev/sdb. I shut off > the RAID controller, powered it off, You did unmount filesystem on the machine before that, right? > did the repair, then plugged > everything back in (that includes the two fiber cables and the ethernet), > and brought the RAID back up. I even used its web page to restart the > controller (in the RAID box. > > I couldn't remount the drive until I rebooted the server. Before powering off/disconnecting RAID box, did you remove resembling SCSI device? this is done if my memory doesn't fail me by doing this: echo 1 > /sys/class/scsi_device/6:0:0:0/device/delete (replace "6:0:0:0" with your device's address). If you didn't remove the device before powering it off, I'm not surprised. If you did remove the device before powering it off, I'm puzzled ;-) Valeri > > I tried scsi-rescan-bus, and nothing. In the logs, I saw it try to mount > it, then unmount it, and complain that the drive wasn't active. > > I was expecting it to act like a hot-swap device. Any clues as to why, > rather than see it removed, it continued to see it as "inactive"? > > mark > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos > ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++