Configuring RAID using single disk

UNIX Solaris
1

Hi All,

I have a SUN ENTERPRISE 3500 server with solaris 10 on it. I have already mirrored root partition.Now i need to mirror two more partitions with 25GB space. But i have only one disk having 70GB space.Total i have 7 disks but each one is of 18 GB only except one. Please find the output of " iostat -En".
###################################################
c2t6d0 Soft Errors: 3 Hard Errors: 0 Transport Errors: 0
Vendor: TOSHIBA Product: DVD-ROM SD-M1401 Revision: 1007 Serial No:
Size: 0.00GB <0 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 3 Predictive Failure Analysis: 0
c1t2d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: SEAGATE Product: ST318304FSUN18G Revision: 042D Serial No: 0103L08375
Size: 18.11GB <18110967808 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
c1t0d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: SEAGATE Product: ST318203FSUN18G Revision: 144A Serial No: 0336687237
Size: 18.11GB <18110967808 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
c0t5d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: SEAGATE Product: ST318203FSUN18G Revision: 144A Serial No: 0344D26561
Size: 18.11GB <18110967808 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
c0t6d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: FUJITSU Product: MAN3735F SUN72G Revision: 1504 Serial No: 0230V17305
Size: 73.40GB <73400057856 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
c0t4d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: SEAGATE Product: ST318304FSUN18G Revision: 042D Serial No: 0103L09G45
Size: 18.11GB <18110967808 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
c1t3d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: SEAGATE Product: ST318304FSUN18G Revision: 1526 Serial No: 0101L08X5P
Size: 18.11GB <18110967808 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
c0t7d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: SEAGATE Product: ST336605FSUN36G Revision: 0538 Serial No: 0219P1NMJK
Size: 36.42GB <36418595328 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
rmt/0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: HP Product: C5683A Revision: C305 Serial No: 9
####################################################
Output of "format" is
##################################

AVAILABLE DISK SELECTIONS:
0. c0t4d0 <SUN18G cyl 7506 alt 2 hd 19 sec 248>
/sbus@3,0/SUNW,socal@d,10000/sf@0,0/ssd@w2100002037d9b385,0
1. c0t5d0 <SUN18G cyl 7506 alt 2 hd 19 sec 248>
/sbus@3,0/SUNW,socal@d,10000/sf@0,0/ssd@w21000004cfe1f47e,0
2. c0t6d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>
/sbus@3,0/SUNW,socal@d,10000/sf@0,0/ssd@w500000e0100ec8d1,0
3. c0t7d0 <SUN36G cyl 24620 alt 2 hd 27 sec 107>
/sbus@3,0/SUNW,socal@d,10000/sf@0,0/ssd@w21000004cf9950db,0
4. c1t0d0 <SUN18G cyl 7506 alt 2 hd 19 sec 248>
/sbus@3,0/SUNW,socal@d,10000/sf@1,0/ssd@w21000004cfe1ceaa,0
5. c1t2d0 <SUN18G cyl 7506 alt 2 hd 19 sec 248>
/sbus@3,0/SUNW,socal@d,10000/sf@1,0/ssd@w2100002037d9d45c,0
6. c1t3d0 <SUN18G cyl 7506 alt 2 hd 19 sec 248>
/sbus@3,0/SUNW,socal@d,10000/sf@1,0/ssd@w2100002037d8bca6,0
Specify disk (enter its number): Specify disk (enter its number):
##############################################
Please help me out to achieve my goal

Thanks in advance
Renjesh Raju

2

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3

Hi All,

I will put it in more simple way ....
I have 7 hard disk in which c1t0d0s0 is for root and that is mirrored to c1t2d0s0 and rest are like ...
c0t5d0 - 18GB
c0t6d0 - 76GB
c0t4d0 - 18GB
c1t3d0 - 18GB
c0t7d0 - 36GB

I need to configure mirroring for two more mountpoint using c0t6d0 disk with 25GB space.But i am short of another 76GB disk.Is there any other method to achieve the same?

Thanks in advance
Renjesh Raju