UNIX for Dummies Questions & Answers

hi guys

suse 10.2

today some guys are adding some luns from a SAN so in order to add them I followed this command

Code:

echo 1 > /sys/class/fc_host/host1/issue_lip
echo "- - -" > /sys/class/scsi_host/host<number>/scan

nice now

after that I tried to create a folder in /
but it won't let me

Code:

# mkdir /backup1
mkdir: cannot create directory `/backup1': Read-only file system

and If I try to remount / as rw I get these. I've tried mounting other filesystem as well same error

Code:

# mount -o remount,rw /opt/IBM
-bash: /bin/mount: Input/output error

any idea how to fix this?


thanks a lot

Hi,

Could you explain, what is the link between scanning new scsi device and the rw access to / ?

I guess you forgot something in your post so we can understand something, or try to. . .

Anyway here the problem is obviously serious because you can't even execute /bin/mount
So i guess there are some kind of harware problem around here.

I think the point was this is a IBM enviroment....which uses RDAC and according to documentation the command to rescan LUNs is mppBusRescan - hot_add

I only think trying the normal commands turned my filesystem on my SAN as read only

has someone worked with RDAC multipath driver? and ibm?

---------- Post updated at 02:38 PM ---------- Previous update was at 11:46 AM ----------

that was the issue guys

thanks a lot

I have to use either mppBusRescan or hot_add