Raid on a raid issue

[Doll, Margaret Ann]

Sometimes the su user is the owner.


On Thu, Jul 24, 2014 at 2:51 PM, <m.roth at 5-cent.us> wrote:

> Doll, Margaret Ann wrote:
> > I created a system with three raids using the DELL configuration tools
> > prior to installation of the RedHat system, 6.5.  The system raid was
> > divided up into numerous partitions for the system and four large
> > partitions for users.  This system raid was a raid 0.
> >
> > After the installation samba worked.  I could log into the system from
> > another subnet.
> >
> > Then a user with su privileges, took the four large partitions on the
> > system raid and made them into another raid using mdadm --create and
> > mdadm--assemble.
> >
> > Now the ssh connections from across the subnets time out.  Samba fails
> > with "NT_STATUS_ACCESS_DENIED."  I can't even ping the system from across
> > campus.
> >
> > I have had to modify /etc/fstab so that the four original partitions do
> no
> > try to mount.  The raid composed of the four partitions mounts as
> > /dev/md127p1.
> >
> > Is the ssh timeout problem, ping problem and samba problem all caused by
> > the raid on raid creation?  The timing of the creation of the new raid
> > indicates that it is.
> >
> First of all, I'd take su away from the user, who doesn't know what
> they're doing.
>
> Next - and I'm *really* not strong on samba - I'd assume that the system
> itself hasn't been reconfigured to (whatever word is used for a samba
> export). The ID's changed, the UUID's changed, etc, etc. And, of course
> any metadata on them is toast. I'm afraid you're going to have to recreate
> them from scratch; anything on them... hope you've got backups.
>
>         mark
>
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