How to see new disk in oracle linux 5

Question

Dear,
i am using oracle VM and created 2 guest OS (both Olx5) i also created a shared disk and assigned to both linux servers.
question: how can i see the disk in each server. using fdisk -l it just shown the one there before.
in HPUX we have ioscan to detect new devices. is there away to check for new disk in oracle linux.
Thanks in advance.
Tom

Answer 1

fdisk -l shows only existing partitions. So if your new disk has not partition created it will be not shown in the output.
AFAIK there is not such command which will list all devices but there are several ways how to find the devices. All informations you can find in /proc directory (fdisk -l reads /proc/partitions when device is not passed as argument).
You can find devices (local disks) for example using following commands (hope it helps):
cat /var/log/dmesg |egrep 'sd[a-z]: s|hd[a-z]: h'
cat /proc/diskstats |egrep -v 'ram|fd'|awk {'print $3'}