On 07/11/2010 14:43, Phil Turmel wrote:
On 11/07/2010 08:43 AM, John Robinson wrote:
[...]
Please don't feel you have to turn this into a project, though.
Too late. Here's a version that doesn't use udevadm at all...
OK, it's an improvement because after I've changed the find command to
find '*scsi_host*', it lists my controllers, but finds them all empty. I
noted that the script was looking for subdirectories called block but
mine have names like block:sda so I changed the script again to refer to
'block*' both in the loop in check_host and in the substitution at the
top of describe_device. There's still something not quite right with
trying to read CentOS/RHEL 5 / kernel 2.6.18 sysfs, because this was the
output I got:
[root@beast ~]# ~john/projects/describe_scsi/describe_scsi_2
Controller device @ pci0000:00/0000:00:1f.2 [ahci]
SATA controller: Intel Corporation 82801JI (ICH10 Family) SATA AHCI
Controller host7: [Empty]
host6: [Empty]
host5: [Empty]
host4: Unknown /sys/block/sdc/dev
sginfo(open): No such file or directory
file=/dev/4:0:0:0, or no corresponding sg device found
Is sg driver loaded?
host4: /dev/4:0:0:0 ATA ST31000528AS
sginfo(open): No such file or directory
file=/dev/holders, or no corresponding sg device found
Is sg driver loaded?
host4: /dev/holders ATA ST31000528AS
sginfo(open): No such file or directory
file=/dev/queue, or no corresponding sg device found
Is sg driver loaded?
host4: /dev/queue ATA ST31000528AS
host4: Unknown /sys/block/sdc/range
host4: Unknown /sys/block/sdc/removable
host4: /dev/sdc1 ATA ST31000528AS {SN: 9VP4XCQP}
host4: /dev/sdc2 ATA ST31000528AS {SN: 9VP4XCQP}
host4: Unknown /sys/block/sdc/size
sginfo(open): No such file or directory
file=/dev/slaves, or no corresponding sg device found
Is sg driver loaded?
host4: /dev/slaves ATA ST31000528AS
host4: Unknown /sys/block/sdc/stat
sginfo(open): No such file or directory
file=/dev/block, or no corresponding sg device found
Is sg driver loaded?
host4: /dev/block ATA ST31000528AS
host4: Unknown /sys/block/sdc/uevent
host3: Unknown /sys/block/sdb/dev
sginfo(open): No such file or directory
file=/dev/3:0:0:0, or no corresponding sg device found
Is sg driver loaded?
host3: /dev/3:0:0:0 ATA SAMSUNG HD103UJ
sginfo(open): No such file or directory
file=/dev/holders, or no corresponding sg device found
Is sg driver loaded?
host3: /dev/holders ATA SAMSUNG HD103UJ
sginfo(open): No such file or directory
file=/dev/queue, or no corresponding sg device found
Is sg driver loaded?
host3: /dev/queue ATA SAMSUNG HD103UJ
host3: Unknown /sys/block/sdb/range
host3: Unknown /sys/block/sdb/removable
host3: /dev/sdb1 ATA SAMSUNG HD103UJ {SN: S1PVJ1CQ602162 }
host3: /dev/sdb2 ATA SAMSUNG HD103UJ {SN: S1PVJ1CQ602162 }
host3: Unknown /sys/block/sdb/size
sginfo(open): No such file or directory
file=/dev/slaves, or no corresponding sg device found
Is sg driver loaded?
host3: /dev/slaves ATA SAMSUNG HD103UJ
host3: Unknown /sys/block/sdb/stat
sginfo(open): No such file or directory
file=/dev/block, or no corresponding sg device found
Is sg driver loaded?
host3: /dev/block ATA SAMSUNG HD103UJ
host3: Unknown /sys/block/sdb/uevent
host2: Unknown /sys/block/sda/dev
sginfo(open): No such file or directory
file=/dev/2:0:0:0, or no corresponding sg device found
Is sg driver loaded?
host2: /dev/2:0:0:0 ATA Hitachi HDS72101
sginfo(open): No such file or directory
file=/dev/holders, or no corresponding sg device found
Is sg driver loaded?
host2: /dev/holders ATA Hitachi HDS72101
sginfo(open): No such file or directory
file=/dev/queue, or no corresponding sg device found
Is sg driver loaded?
host2: /dev/queue ATA Hitachi HDS72101
host2: Unknown /sys/block/sda/range
host2: Unknown /sys/block/sda/removable
host2: /dev/sda1 ATA Hitachi HDS72101 {SN: JP2921HQ0J0PZA}
host2: /dev/sda2 ATA Hitachi HDS72101 {SN: JP2921HQ0J0PZA}
host2: Unknown /sys/block/sda/size
sginfo(open): No such file or directory
file=/dev/slaves, or no corresponding sg device found
Is sg driver loaded?
host2: /dev/slaves ATA Hitachi HDS72101
host2: Unknown /sys/block/sda/stat
sginfo(open): No such file or directory
file=/dev/block, or no corresponding sg device found
Is sg driver loaded?
host2: /dev/block ATA Hitachi HDS72101
host2: Unknown /sys/block/sda/uevent
Controller device @ pci0000:00/0000:00:1e.0/0000:05:01.1 [aic7xxx]
SCSI storage controller: Adaptec AHA-3960D / AIC-7899A U160/m (rev
01) host9: [Empty]
Controller device @ pci0000:00/0000:00:1e.0/0000:05:01.0 [aic7xxx]
SCSI storage controller: Adaptec AHA-3960D / AIC-7899A U160/m (rev
01) host8: [Empty]
Controller device @ pci0000:00/0000:00:1c.4/0000:03:00.0 [pata_marvell]
IDE interface: Marvell Technology Group Ltd. 88SE6121 SATA II
Controller (rev b2) host1: [Empty]
host0: Unknown /sys/block/sr0/dev
sginfo(open): No such file or directory
file=/dev/0:0:0:0, or no corresponding sg device found
Is sg driver loaded?
host0: /dev/0:0:0:0 HL-DT-ST DVD-RAM GH22NP20
sginfo(open): No such file or directory
file=/dev/holders, or no corresponding sg device found
Is sg driver loaded?
host0: /dev/holders HL-DT-ST DVD-RAM GH22NP20
sginfo(open): No such file or directory
file=/dev/queue, or no corresponding sg device found
Is sg driver loaded?
host0: /dev/queue HL-DT-ST DVD-RAM GH22NP20
host0: Unknown /sys/block/sr0/range
host0: Unknown /sys/block/sr0/removable
host0: Unknown /sys/block/sr0/size
sginfo(open): No such file or directory
file=/dev/slaves, or no corresponding sg device found
Is sg driver loaded?
host0: /dev/slaves HL-DT-ST DVD-RAM GH22NP20
host0: Unknown /sys/block/sr0/stat
sginfo(open): No such file or directory
file=/dev/block, or no corresponding sg device found
Is sg driver loaded?
host0: /dev/block HL-DT-ST DVD-RAM GH22NP20
host0: Unknown /sys/block/sr0/uevent
[root@beast ~]#
So it's finding my drives but also trying to describe_device lots of
wrong things - maybe need a different expansion for the loop in check_host?
Hopefully the below will give you a better idea of what the sysfs layout
is like on CentOS/RHEL 5:
[root@beast 0000:00:1f.2]# pwd
/sys/devices/pci0000:00/0000:00:1f.2
[root@beast 0000:00:1f.2]# ls -F
broken_parity_status enable host7/ resource0 subsystem@
bus@ host2/ irq resource1 subsystem_device
class host3/ local_cpus resource2 subsystem_vendor
config host4/ modalias resource3 uevent
device host5/ power/ resource4 vendor
driver@ host6/ resource resource5
[root@beast 0000:00:1f.2]# ls -FR host2
host2:
power/ scsi_host:host2@ target2:0:0/ uevent
host2/power:
state wakeup
host2/target2:0:0:
2:0:0:0/ power/ uevent
host2/target2:0:0/2:0:0:0:
block:sda@ iocounterbits queue_type state
bus@ iodone_cnt rescan subsystem@
delete ioerr_cnt rev sw_activity
device_blocked iorequest_cnt scsi_device:2:0:0:0@ timeout
dh_state model scsi_disk:2:0:0:0@ type
driver@ power/ scsi_generic:sg1@ uevent
generic@ queue_depth scsi_level vendor
host2/target2:0:0/2:0:0:0/power:
state wakeup
host2/target2:0:0/power:
state wakeup
[root@beast 0000:00:1f.2]# ls -FR host2/target2\:0\:0/2\:0\:0\:0/block\:sda/
host2/target2:0:0/2:0:0:0/block:sda/:
dev holders/ range sda1/ size stat uevent
device@ queue/ removable sda2/ slaves/ subsystem@
host2/target2:0:0/2:0:0:0/block:sda/holders:
host2/target2:0:0/2:0:0:0/block:sda/queue:
iosched/ max_hw_sectors_kb nr_requests scheduler
iostats max_sectors_kb read_ahead_kb
host2/target2:0:0/2:0:0:0/block:sda/queue/iosched:
back_seek_max fifo_expire_sync slice_async slice_sync
back_seek_penalty quantum slice_async_rq
fifo_expire_async queued slice_idle
host2/target2:0:0/2:0:0:0/block:sda/sda1:
dev holders/ size start stat subsystem@ uevent
host2/target2:0:0/2:0:0:0/block:sda/sda1/holders:
md0@
host2/target2:0:0/2:0:0:0/block:sda/sda2:
dev holders/ size start stat subsystem@ uevent
host2/target2:0:0/2:0:0:0/block:sda/sda2/holders:
md1@
host2/target2:0:0/2:0:0:0/block:sda/slaves:
[root@beast 0000:00:1f.2]#
Hope this helps. I've also attached my edited version of the script.
Many thanks,
John.
#! /bin/bash
#
# Examine specific system host devices to identify the drives attached
#
function describe_controller () {
local device driver modprefix serial slotname
driver="`readlink -f \"$1/driver\"`"
driver="`basename $driver`"
modprefix="`cut -d: -f1 <\"$1/modalias\"`"
echo "Controller device @ ${1##/sys/devices/} [$driver]"
if [[ "$modprefix" == "pci" ]] ; then
slotname="`basename \"$1\"`"
echo -n " `lspci -s $slotname |cut -d\ -f2-`"
return
fi
if [[ "$modprefix" == "usb" ]] ; then
if [[ -f "$1/busnum" ]] ; then
device="`cat \"$1/busnum\"`:`cat \"$1/devnum\"`"
serial="`cat \"$1/serial\"`"
else
device="`cat \"$1/../busnum\"`:`cat \"$1/../devnum\"`"
serial="`cat \"$1/../serial\"`"
fi
echo " `lsusb -s $device` {SN: $serial}"
return
fi
echo -e " `cat \"$1/modalias\"`"
}
function describe_device () {
targ=${1%/block*/*}
vnd="`cat $targ/vendor`"
mdl=`cat $targ/model`
rdev=`readlink -f "$1"`
if [[ -d $rdev ]] ; then
bdev="`basename $rdev`"
sn="`sginfo -s /dev/$bdev | \
sed -rn -e \"/Serial Number/{s%^.+' *(.+) *'.*\\\$%\\\\1%;p;q}\"`" &>/dev/null
if [[ -n "$sn" ]] ; then
echo -e " $bhost: `echo /dev/$bdev $vnd $mdl {SN: $sn}`"
else
echo -e " $bhost: `echo /dev/$bdev $vnd $mdl`"
fi
else
echo -e " $bhost: Unknown $rdev"
fi
}
function check_host () {
local found=0
local pController=
while read shost ; do
host=`dirname "$shost"`
controller=`dirname "$host"`
bhost=`basename "$host"`
if [[ "$controller" != "$pController" ]] ; then
pController="$controller"
describe_controller "$controller"
fi
for dev in $host/target*/*/block*/* ; do
if [[ "${dev: -1}" == '*' ]] ; then
echo -e " $bhost: [Empty]"
else
describe_device "$dev"
fi
done
done
}
find /sys/devices/ -name *scsi_host* |check_host
