[Info-vax] Odd Show Device (DSSI disks in cluster)

[JF Mezei]

On node VELOVX (VAX with DSSI interface).

> $  show dev d
> 
> Device                  Device           Error    Volume         Free  Trans Mnt
>  Name                   Status           Count     Label        Blocks Count Cnt
> $4$DIA0:      (DISK41)  HostUnavailable      0
> $4$DIA2:      (DISK42)  HostUnavailable      0
> $4$DIA3:      (DISK41)  HostUnavailable      0
> $4$DIA4:      (DISK44)  HostUnavailable      0
> $4$DIA5:      (DISK45)  HostUnavailable      0


On node CHAIN:

> $ show dev d
> 
> Device                  Device           Error    Volume         Free  Trans Mnt
>  Name                   Status           Count     Label        Blocks Count Cnt
> $4$DIA0:      (VELOVX)  Online               0
> $4$DIA2:      (VELOVX)  Online               0
> $4$DIA3:      (VELOVX)  Online               0
> $4$DIA4:      (VELOVX)  Online               0
> $4$DIA5:      (VELOVX)  Online               0

> $ mount $4$dia0/override=id
> %MOUNT-F-MEDOFL, medium is offline
> $ show dev d
> 
> Device                  Device           Error    Volume         Free  Trans Mnt
>  Name                   Status           Count     Label        Blocks Count Cnt
> $4$DIA0:      (VELOVX)  Online               0



Interesting that the Alpha node is not made aware that the drives are
not there, and continues to think they are "online" despite a mount
attempt having failed.

(Those drives are not only offline, but in a box, and the cabinet they
were in is partly dismantled so they are *really* offline :-)