missing secondary disk sasmgr

[Ramasubramanian Krishna]

I am unable to determine the OS disk in BL860c
Below is the output of the sasmgr
sasmgr get_info -D /dev/sasd0 -q raid
Thu Feb 26 08:38:43 2009
---------- LOGICAL DRIVE 1 ----------
Raid Level : RAID 1
Volume sas address : 0x53840d6e4c70678
Device Special File : /dev/rdsk/c0t0d0
Raid State : DEGRADED
Raid Status Flag : ENABLED
Raid Size : 139898
Rebuild Rate : 0.00 %
Rebuild Progress : 100.00 %
Participating Physical Drive(s) :
SAS Address Enc Bay Size(MB) Type State
0x5000c5000ad7109d 1 2 140014 PRIMARY ONLINE
0x0 0 0 140014 SECONDARY MISSING
---------- LOGICAL DRIVE 130 ----------
Raid Level : RAID 1
Volume sas address : 0x53c7585e4c3cacb
Raid State : OPTIMAL
Raid Status Flag : ENABLED INACTIVE
Raid Size : 139898
Rebuild Rate : 0.00 %
Rebuild Progress : 100.00 %
Participating Physical Drive(s) :
SAS Address Enc Bay Size(MB) Type State
0x0 0 0 140014 PRIMARY MISSING
0x5000c5000abdf179 1 1 140014 SECONDARY ONLINE

sasmgr get_info -D /dev/sasd0 -q lun=all -q lun_locate
ERROR: More than one PHY in the iport: Invalid argument
RAID VOL ID is 1 :
/dev/rdsk/c0t0d0 0/2/1/0.0.0.0.0
Physical disks in volume are :
1 2 OFF

[Torsten.]

Looks like a dead disk.

[Fadia Almarei]

i have the same case on my rx6600 server . i try to remove the disks and return it agian make scan ,bu it does notwork, what i sheould do to replace this failed disk ,kindly your help