How to detect newly added storage device without reboot

[sreekanthtm]

I have one rx5670 server running RHEL 5.1.
I presented 5 luns from SAN (XP, EVA), but it is not visible from the host. What are the commands to be exicuted from host, so that it can detect the luns without reboot.

Rgds
Sreekanth

[joseph pareti · Accepted solution]

have you done a rescan? i don't know on integrity, but on proliant there are "fibre tools", such as hp_rescan -a

[weisstik]

What kind of HBAs do you use or what driver module?

[Hemmetter]

Hi,

first identify you HBA by command
$lspci
compare to
$ls -ld /sys/class/scsi_host/host?/device

find the correct .../host?/
then
$ echo "- - - " > /sys/class/scsi_host/hostX/scan

finally check dmesg-output for new devices.


rgds
HGH

[Steven E. Protter]

Shalom,

All things being equal hprescan from PSP should be able to detect the new storage without reboot.

In practice this may be effected by settings in /etc/modprobe.conf and the initrd ramdisk image.

I've had problems with this when using Emulex cards.

SEP