Am 06.11.12 17:30, schrieb James A. Peltier: > ----- Original Message ----- > | 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 > | > > Sounds like the update may have renamed the old devices to something new. This has happened once to be with a Dell Equallogic firmware update. Are you mounting the devices using a device name or using device labels? If the former you should use labels if you created them or the UUID. If you have a look in /dev/disk you'll see all the options available to your OS. If you choice to go with UUID then have a look in /dev/disk/by-uuid to get the path > Hi, on that storage I did not used labels AFAIK ... it was long ago that I set that up. So I looked up the uuid, but dont got a working clue for me. I than tried the steps from Hal Martins mail removing the LVM settings etc and created a new LVM (PD/VG) with the settings I used for installing the storage on the old server. But I still cant mount the volumes. May be I messed more up than to fix? :( We dont use multipathing on that storage. ANY suggestion and hint is very welcome! Thanks and best regards. Götz -- Götz Reinicke - IT-Koordinator - Filmakademie Baden-Württemberg GmbH