Comment 2 for bug 192080

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LinuxBladeGuy (spam-nashira) wrote : Re: shutdown fails..

This bug is actually much more substantial than just NFS servers as indicated above. Any service that depends on iSCSI will cause problems. For instance, if the machine above has its postfix mail queue on an iSCSI volume, postfix can't shut down since the storage has been ripped out from under it!

There are serious issues with the iscsi startup and shutdown scripts. Examples:

- There is no mechanism to unmount iscsi volumes before shutting down iscsi
- The default startup scripts try to start iscsi before networking

In fact, I would say iSCSI support on Ubuntu (and Debian for that matter) is purely "experimental" at this time. For iSCSi to be considered of any real use:

1. boot-time filesystem checks should work
2. iscsi volumes should be mounted before anything else tries to start
3. iscsi volumes should be cleanly unmounted _AFTER_ all other services have shut down

With a fresh Hardy installation I see:

- iSCSI does not start up automatically at boot time, even though it appears it should
- iSCSI gets shut down before just about everything else, crashing the system on shutdown
- No mechanism in place to check if volumes are in use before shutting down iSCSI

RedHat has had this working properly since Enterprise 3. SuSE has had this working properly since SuSE Enterprise 9. We are YEARS behind here!!