mdadm oddity.

[Sam Varshavchik <mrsam@xxxxxxxxxxxxxxx>]

I noticed a slight oddity on one of my servers: when I start "mdadm 
--monitor --scan" I get only the "NewArray" message.  On the other server I 
get a "NewArray" then a "SparesMissing" message, for each RAID partition.  
Neither server has spares.  Both servers have a pair of SCSI drives in a 
RAID-1 configuration for all of the partitions.

Well, the real oddity is actually that the other server only reports a 
NewArray -- because I see in the ChangeLog mdadm is _supposed_ to report 
both NewArray and SparesMissing.  But until I turned up the second server I 
only ever got NewArray from mdadm, so that was something new.

Investigating this I discovered that I get a SparesMissing message if I 
explicitly enumerate all my RAID partitions in mdadm.conf (mdadm 1.5.0).  If 
I don't list my partitions in mdadm.conf, mdadm still finds them, but then 
reports only a NewArray message.  Does that sound right?

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