no device files for tape after crash

From: Jeffrey Foster <jmf7001_at_axe.humboldt.edu>
Date: Wed, 01 Oct 1997 11:38:04 -0700 (PDT)

on our alpha 2100 running DU4.0a, out tz87 DLT tape unit is not
recognized after a crash( do to failed AC). The tape unit was
fine before the crash. It is seen at the hardware level, but
not the logical level.

the error is:
 mt stat
/dev/nrmt0h: No such device or address

but,
ls -la /dev/rmt*
crw-rw-rw- 1 root system 27, 2 Oct 1 11:17 /dev/rmt0h
crw-rw-rw- 1 root system 27, 0 Oct 1 11:17 /dev/rmt0l

ls -la /dev/nrmt*
crw-rw-rw- 1 root system 27, 3 Oct 1 11:17 /dev/nrmt0h
crw-rw-rw- 1 root system 27, 1 Oct 1 11:17 /dev/nrmt0l

scu show:
scu> sho edt

CAM Equipment Device Table (EDT) Information:

Device: TZ87 Bus: 0, Target: 0, Lun: 0, Type: Sequential Access
Device: NoDevicePresent Bus: 0, Target: 0, Lun: 1, Type: (not present)
Device: NoDevicePresent Bus: 0, Target: 0, Lun: 2, Type: (not present)
Device: NoDevicePresent Bus: 0, Target: 0, Lun: 3, Type: (not present)
Device: NoDevicePresent Bus: 0, Target: 0, Lun: 4, Type: (not present)
Device: NoDevicePresent Bus: 0, Target: 0, Lun: 5, Type: (not present)
Device: NoDevicePresent Bus: 0, Target: 0, Lun: 6, Type: (not present)
Device: NoDevicePresent Bus: 0, Target: 0, Lun: 7, Type: (not present)
Device: RRD43 Bus: 0, Target: 5, Lun: 0, Type: Read-Only Direct Access
    Device: RRD43 Bus: 0, Target: 5, Lun: 1, Type: (not present)
    Device: RRD43 Bus: 0, Target: 5, Lun: 2, Type: (not present)
    Device: RRD43 Bus: 0, Target: 5, Lun: 3, Type: (not present)

So it looks like its there from a SCSI point of view. the edt looks
the same on systems that do have working tape units.
I have rm the dev file and run a MAKEDEV tms0, but no luck.
the dlt unit works ok on an Nt box.

anyone have suggestions for getting the dev file corrected so we
can use the tape unit?

thanks,
Jeff

---
Jeff Foster 			System Administrator
Humboldt State University	
Arcata, CA 95521
Received on Wed Oct 01 1997 - 20:51:27 NZST

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