Götz,
Did you remove the devices as well? I was working with an HP MSA and unless you removed the devices from multipath before the firmware update I ran into the errors you're seeing. It's because the old devices are still known to multipath, but don't map to a LUN on the target anymore.
https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/5/ht...
-Hal
On Tue, Nov 6, 2012 at 5:14 AM, Götz Reinicke - IT Koordinator goetz.reinicke@filmakademie.de wrote:
Hi,
I have an iscsistorage which I attached to a new centos 6.3 server. I added logic volumes as usual, the block devices (sdb & sdc) showed up in dmesg; I can mount and access the stored files.
Now we did an firmware software update to that storage (while unmounted/detached from the fileserver) and after reboot of the storage and reatache the iscsi nodes I do get new devices. (sdd & sde)
The last time I remember a simple vgchange -ay changed all neede settings so that I can mount and use the volumes as expected.
But this time I do get an IO error like
/dev/sun7110to_dali_LUN_3/lvol0: read failed after 0 of 4096 at 1610608476160: Eingabe-/Ausgabefehler
but also:
1 logical volume(s) in volume group "sun7110to_dali_LUN_3" now active
What might be messed up? What can I try do get the storage/filesystems back online?
Thanks for any sugesstion and regards . Götz-- Götz Reinicke - IT-Koordinator - Filmakademie Baden-Württemberg GmbH
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