meta devices with wrong size as seen on host side

from time to time, I run into a strange situation: I create a meta devices
with multiple members, mapped to FA, then masked with host HBA.
re-scan the host would see it, but the size as reported by format is wrong.

ex: I have a meta consist of 8 x 9.4GB = 75GB
# symdev -sid xxxx list -raid5 | grep 00B1
00B1 Not Visible ???:? 05A:C0 RAID-5 N/Grp'd (M) RW 75938

# cat /tmp/map.cmd
map dev 00B1 to dir 08B:0 target=0, lun=017, wwn=xxxxxxxxxxxxxxxxx;

# symconfigure -sid xxxx -f /tmp/map.cmd commit -nop;
then on the host side, the disk is showing up as

c2t5006xxxxxxxxxxxxd23

and it is ONLY 9G, see format
ascii name =
pcyl = 20250
ncyl = 20248
acyl = 2
nhead = 15
nsect = 64
Part Tag Flag Cylinders Size Blocks
0 unassigned wm 0 0 (0/0/0) 0
1 unassigned wm 0 0 (0/0/0) 0
2 backup wu 0 - 20247 9.27GB (20248/0/0) 19438080
3 unassigned wm 0 0 (0/0/0) 0
4 unassigned wm 0 0 (0/0/0) 0
5 unassigned wm 0 0 (0/0/0) 0
6 unassigned wm 0 0 (0/0/0) 0
7 - wu 0 - 20247 9.27GB (20248/0/0) 19438080

bash-3.00# symdev -sid 0xxx show 00B1

Device Symmetrix Name : 00B1
Device Serial ID : N/A
Symmetrix ID : 0001xxxxxxx

Attached BCV Device : N/A
Attached VDEV TGT Device : N/A
Vendor ID : EMC
Product ID : SYMMETRIX
Product Revision : 5671
Device WWN : 60060480000xxxxxxxxxxxxxxxxxxx
Device Emulation Type : FBA
Device Block Size : 512

Device Capacity
{
Cylinders : 162000
Tracks : 2430000
512-byte Blocks : 155520000
MegaBytes : 75938
KiloBytes : 77760000
}

Device Configuration : RAID-5 (Meta Head,
Non-Exclusive Access)

Device is WORM Enabled : No
Device is WORM Protected : No

SCSI-3 Persistent Reserve: Disabled
Dynamic Spare Invoked : No
Dynamic RDF Capability : None
Device Service State : Normal

Device Status : Ready (RW)
Device SA Status : Ready (RW)

Front Director Paths (1):
{
----------------------------------------------------------------------
POWERPATH DIRECTOR PORT LUN
--------- ---------- ---- -------- ---------
PdevName Type Type Num Sts VBUS TID SYMM Host
----------------------------------------------------------------------
Not Visible N/A FA 08B:0 RW 000 00 017 N/A
}

Meta Configuration : Concatenated
Meta Device Members (8) :
{
----------------------------------------------------------------------
BCV DATA RDF DATA
---------------------------- --------------------------
Sym Cap Std Inv BCV Inv Pair R1 Inv R2 Inv Pair
Dev (MB) Tracks Tracks State Tracks Tracks State
----------------------------------------------------------------------
--> 00B1 9492 - - N/A - - N/A
00B2 9492 - - N/A - - N/A
00B3 9492 - - N/A - - N/A
00B4 9492 - - N/A - - N/A
00B5 9492 - - N/A - - N/A
00B6 9492 - - N/A - - N/A
00B7 9492 - - N/A - - N/A
00B8 9492 - - N/A - - N/A
----------------------------------------------------------------------
75938 - - - -
}


the question is: why this is show up as 9G instead of 75G ?

I have tried to re-label the drive use format -e , with SMI label still no luck?

Thanks in advance.
JasonJ

Message was edited by:
Stefano Del Corno

removed some more details from FA and device WWN