VTOC overlap

[art15t]

Can anyone shed any light on the relevance of a disks vtoc whilst the disk is encapsulated and under the control of VxVm. The rootdisk has a VTOC that shows overlapping of slice 1 and 6 ( /var & /opt according to my /etc/vfstab.prevxvm ).

<hostname> / :# prtvtoc -s /dev/dsk/c1t0d0s2
* First Sector Last
* Partition Tag Flags Sector Count Sector Mount Directory
0 2 00 0 12584484 12584483
1 7 00 12584484 12584484 25168967
2 5 00 0 71127180 71127179
3 3 01 25168968 16779312 41948279
5 14 01 0 71127180 71127179
6 7 00 12584484 12584484 25168967
7 15 01 71124291 2889 71127179

but a vxprint lists VxVm has /var and /opt having totally different offsets:

<hostname> / :# vxprint -Ath|grep var
v var - ENABLED ACTIVE 12584484 ROUND - gen
pl var-01 var ENABLED ACTIVE 12584484 CONCAT - RW
sd rootdisk-05 var-01 rootdisk 12584483 12584484 0 c1t0d0 ENA
pl var-02 var ENABLED ACTIVE 12584484 CONCAT - RW
sd rootmirror-05 var-02 rootmirror 58516695 12584484 0 c1t1d0 ENA
<hostname> / :# vxprint -Ath|grep opt
v opt - ENABLED ACTIVE 12584484 ROUND - gen
pl opt-01 opt ENABLED ACTIVE 12584484 CONCAT - RW
sd rootdisk-03 opt-01 rootdisk 41948279 12584484 0 c1t0d0 ENA
pl opt-02 opt ENABLED ACTIVE 12584484 CONCAT - RW
sd rootmirror-02 opt-02 rootmirror 16568415 12584484 0 c1t1d0 ENA

I think we only have a problem with the overlap if we weren't using VxVm or any volume management for that matter. The SUN engineer is suggesting we need a rebuild but the concensus amonst our team is that this really isn't necessary. Are we wrong on this one?

ART

 

[bfitzmai]

Your prtvtoc doesn't make much sense. Partition 2 and 5 look the same or full disk size. It almost looks like your prtvotc is looking at 2 separate disks. Are you using some kind of volume manager for mirrors or concatinations?