topic Re: linux to see new devices without a reboot in Operating System - Linux

linux to see new devices without a reboot

DA2072 — Tue, 04 Dec 2007 17:21:57 GMT

I've tried the hp_rescan -a on Red Hat Linux 4 on a Bl25p but cannot see the new devices on the host.
Running the "cat /proc/scsi/qla2xxx/0 shows the (Id:Lun) * - indicates lun is not registered with the OS message". I've also tried the echo "---">/sys/class/scsi_host/host0/scan but still cannot see the devices. How do I get the linux to see without a reboot?

Re: linux to see new devices without a reboot

Ivan Ferreira — Tue, 04 Dec 2007 18:07:05 GMT

Have you tried running /opt/hp/hp_fibreutils/probe-luns -a before hp_rescan?

Re: linux to see new devices without a reboot

DA2072 — Tue, 04 Dec 2007 19:02:23 GMT

Yes, it still did not work.

Re: linux to see new devices without a reboot

nataraj.kn — Wed, 05 Dec 2007 05:58:08 GMT

hai,

please try these commands.
#lspci
or
#dmesg
you can see the devices which are connected with out rebooting.

Try mounting the device using mount command.

Re: linux to see new devices without a reboot

skt_skt — Thu, 06 Dec 2007 01:28:52 GMT

echo "1" > /sys/class/fc_host/hostx/issue_lp

sleep 15

echo "- - -" > /sys/class/scsi_host/hostx/scan

replace the x with hba number on both the cases

Re: linux to see new devices without a reboot

DA2072 — Thu, 06 Dec 2007 14:14:59 GMT

There is no issue_lp file in the directory
/sys/class/fc_host/hostx.

Re: linux to see new devices without a reboot

skt_skt — Thu, 06 Dec 2007 16:53:11 GMT

issue_lip.

Re: linux to see new devices without a reboot

DA2072 — Thu, 06 Dec 2007 16:58:55 GMT

There is only a directory called device there. No file as issue_lip out there.