After add new SAN disk to linux system, if you want linux system detect new disk without rebooting system you can execute this command.
for scsi disk
#echo 1 > /sys/class/fc_host/host$host/issue_lip
for fc disk
#echo "- - -" > /sys/class/scsi_host/host$host/scan
you can list your hba wwn in linux by display node_name
#cat /sys/class/fc_host/host$host/node_name
while $host is your hba no.
you can display scsi device in linux system by display scsi that will map to device like /dev/sda, /dev/sdb in sequence.
#cat /proc/scsi/scsi
for example: it will map scsi0 to /dev/sda and scsi1 to /dev/sdb
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: ST3320620NS Rev: 3.AE
Type: Direct-Access ANSI SCSI revision: 05
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: ST31000333AS Rev: CC1H
Type: Direct-Access ANSI SCSI revision: 05
to remove single scsi device:
echo "scsi remove-single-device a b c d" > /proc/scsi/scsi
to add single scsi device:
echo "scsi add-single-device a b c d" > /proc/scsi/scsi
while
a == hostadapter id (first one being 0)
b == SCSI channel on hostadapter (first one being 0)
c == ID
d == LUN (first one being 0)
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