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--- rescan_scsi_bus [2011/06/01 12:58]
127.0.0.1 external edit
+++ rescan_scsi_bus [2011/10/03 11:50] (current)
root [Rescan SCSI/FC bus]
@@ Line 1: / Line 1: @@
-====== Rescan bus ======
+====== Rescan SCSI bus ======
 There is no need to reboot in order to rescan SCSI/FC bus
@@ Line 9: / Line 9: @@
    for hosts in  /sys/class/scsi_host/*; do echo "- - -" > $hosts/scan ; done
-Rescan FC bus
+====== Rescan FC bus ======
   echo "1" > /sys/class/fc_host/host#/issue_lip
@@ Line 16: / Line 16: @@
   for hosts in /sys/class/fc_host/*; do echo "1" > $hosts/issue_lip; done
+====== LUN/Disk expansion ======
+Expand Vmware disk / SAN LUN.
+Force rescan to get the kernel aware of the new size (supposing your LUN is /dev/sdb):
+  # echo 1 > /sys/block/sdb/device/rescan
+In case multipathing is beeing used, the command has to been issued on all devices. eg. sdc/sde etc. multipath -ll can be used to list the devices.

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