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/html/Online_Storage_Reconfiguration_Guide/removing_devices.html -Hal On Tue, Nov 6, 2012 at 5:14 AM, Götz Reinicke - IT Koordinator <goetz.reinicke at 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 > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >