problems with tape drive
Dana Holland
dana.holland at navarrocollege.edu
Thu Feb 1 14:39:42 UTC 2007
Here is the result of the script:
[root at mail ~]# ./scan_scsi_bus.sh
Host adapter 0 (aic7xxx) found.
Host adapter 1 (aic7xxx) found.
0 new device(s) found.
0 device(s) removed.
David Tonhofer wrote:
> Dana Holland wrote:
>>
>>
>> This is what's showing in /proc/scsi/scsi - the device with Id: 06
>> used to say Seagate DAT-72, so I've obviously changed something in my
>> attempts to fix this.
>>
>>
>
> You mean to say that there is no entry?
>
> Try scanning the SCSI bus with this little script (just run it as
> scan_scsi_bush.sh)
>
>
>
> #!/bin/bash
> # Skript to rescan SCSI bus, using the
> # scsi add-single-device mechanism
> # (w) 98/03/19 Kurt Garloff <kurt at garloff.de> (c) GNU GPL
>
> # Return hosts. /proc/scsi/HOSTADAPTER/? must exist
> findhosts ()
> {
> hosts=
> for name in /proc/scsi/*/?; do
> name=${name#/proc/scsi/}
> if test ! $name = scsi
> then hosts="$hosts ${name#*/}"
> echo "Host adapter ${name#*/} (${name%/*}) found."
> fi
> done
> }
>
> # Test if SCSI device $host $channen $id $lun exists
> # Outputs description from /proc/scsi/scsi, returns new
> testexist ()
> {
> grepstr="scsi$host Channel: 0$channel Id: 0*$id Lun: 0$lun"
> new=`cat /proc/scsi/scsi|grep -e"$grepstr"`
> if test ! -z "$new"
> then cat /proc/scsi/scsi|grep -e"$grepstr"
> cat /proc/scsi/scsi|grep -A2 -e"$grepstr"|tail -2|pr -o4 -l1
> fi
> }
>
> # Perform search (scan $host)
> dosearch ()
> {
> for channel in $channelsearch; do
> for id in $idsearch; do
> for lun in $lunsearch; do
> new=
> devnr="$host $channel $id $lun"
> echo "Scanning for device $devnr ..."
> printf "OLD: "
> testexist
> if test ! -z "$remove" -a ! -z "$new"
> then echo "scsi remove-single-device $devnr" >/proc/scsi/scsi
> echo "scsi add-single-device $devnr" >/proc/scsi/scsi
> printf "\r\x1b[A\x1b[A\x1b[AOLD: "
> testexist
> if test -z "$new"; then printf "\rDEL: \r\n\n\n\n"; let
> rmvd+=1; fi
> fi
> if test -z "$new"
> then printf "\rNEW: "
> echo "scsi add-single-device $devnr" >/proc/scsi/scsi
> testexist
> if test -z "$new"; then printf "\r\x1b[A"; else let found+=1; fi
> fi
> done
> done
> done
> }
>
>
> # main
> if test @$1 = @--help -o @$1 = @-h
> then
> echo "Usage: scan_scsi_bus.sh [-l] [-w] [-c] [host [host ...]]"
> echo " -l activates scanning for LUNs 0 .. 7 [default: 0]"
> echo " -w enables scanning for device IDs 0 .. 15 [def.: 0 .. 7]"
> echo " -r enables removing of devices [default: disabled]"
> echo " -c enables scanning of channels 0 1 [default: 0]"
> echo " If hosts are given, only these are scanned [default: all]"
> exit 0
> fi
>
> # defaults
> lunsearch="0"
> idsearch="0 1 2 3 4 5 6 7"
> channelsearch="0"
> remove=""
>
> # Scan options
> opt="$1"
> while test ! -z "$opt" -a -z "${opt##-*}"; do
> opt=${opt#-}
> case "$opt" in
> l) lunsearch="0 1 2 3 4 5 6 7" ;;
> w) idsearch="0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15" ;;
> c) channelsearch="0 1" ;;
> r) remove=1 ;;
> *) echo "Unknown option -$opt !" ;;
> esac
> shift
> opt="$1"
> done
>
> # Hosts given ?
> if test @$1 = @; then findhosts; else hosts=$*; fi
>
> declare -i found=0
> declare -i rmvd=0
> for host in $hosts; do dosearch; done
> echo "$found new device(s) found. "
> echo "$rmvd device(s) removed. "
>
>
>
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