I wanted to use two Oracle SPARC T5-4 servers to simultaneously host both Oracle RAC and a WebLogic Server Cluster. I chose to use Oracle VM Server for SPARC to create a cluster like this: 
   
   
There are plenty of trade offs and decisions that need to be made, for example:  
   
    Rather than configuring the system by hand, you might want to use an Oracle SuperCluster T5-8   
    My configuration is similar to jsavit's: Availability Best Practices - Example configuring a T5-8
 but I chose to ignore some of the advice. Maybe I should have included an  alternate service domain, but I decided that I already had enough 
redundancy 
   
Both Oracle SPARC T5-4 servers were to be configured like this:    
   
     
       
        Cntl
0.25  4   64GB  
                            App LDom                     2.75 CPU's                                         44 cores                                           704 GB           
             DB LDom       One CPU         16 cores         256 GB    
       
     
    
The systems started with everything in the primary domain:  # ldm list 
NAME             STATE      FLAGS   CONS    VCPU  MEMORY   UTIL  NORM  UPTIME
primary          active     -n-c--  UART    512   1023G    0.0%  0.0%  11m 
# ldm list-spconfig
factory-default [current]
primary 
# ldm list -o core,memory,physio
NAME             
primary           
CORE
    CID    CPUSET
    0      (0, 1, 2, 3, 4, 5, 6, 7)
    1      (8, 9, 10, 11, 12, 13, 14, 15)
    2      (16, 17, 18, 19, 20, 21, 22, 23)
-- SNIP
    62     (496, 497, 498, 499, 500, 501, 502, 503)
    63     (504, 505, 506, 507, 508, 509, 510, 511) 
MEMORY
    RA               PA               SIZE            
    0x30000000       0x30000000       255G
    0x80000000000    0x80000000000    256G
    0x100000000000   0x100000000000   256G
    0x180000000000   0x180000000000   256G # Give this memory block to the DB LDom  
IO
    DEVICE                           PSEUDONYM        OPTIONS
    pci@300                          pci_0           
    pci@340                          pci_1           
    pci@380                          pci_2           
    pci@3c0                          pci_3           
    pci@400                          pci_4           
    pci@440                          pci_5           
    pci@480                          pci_6           
    pci@4c0                          pci_7           
    pci@300/pci@1/pci@0/pci@6        /SYS/RCSA/PCIE1 
    pci@300/pci@1/pci@0/pci@c        /SYS/RCSA/PCIE2 
    pci@300/pci@1/pci@0/pci@4/pci@0/pci@c /SYS/MB/SASHBA0 
    pci@300/pci@1/pci@0/pci@4/pci@0/pci@8 /SYS/RIO/NET0   
    pci@340/pci@1/pci@0/pci@6        /SYS/RCSA/PCIE3 
    pci@340/pci@1/pci@0/pci@c        /SYS/RCSA/PCIE4 
    pci@380/pci@1/pci@0/pci@a        /SYS/RCSA/PCIE9 
    pci@380/pci@1/pci@0/pci@4        /SYS/RCSA/PCIE10
    pci@3c0/pci@1/pci@0/pci@e        /SYS/RCSA/PCIE11
    pci@3c0/pci@1/pci@0/pci@8        /SYS/RCSA/PCIE12
    pci@400/pci@1/pci@0/pci@e        /SYS/RCSA/PCIE5 
    pci@400/pci@1/pci@0/pci@8        /SYS/RCSA/PCIE6 
    pci@440/pci@1/pci@0/pci@e        /SYS/RCSA/PCIE7 
    pci@440/pci@1/pci@0/pci@8        /SYS/RCSA/PCIE8 
    pci@480/pci@1/pci@0/pci@a        /SYS/RCSA/PCIE13
    pci@480/pci@1/pci@0/pci@4        /SYS/RCSA/PCIE14
    pci@4c0/pci@1/pci@0/pci@8        /SYS/RCSA/PCIE15
    pci@4c0/pci@1/pci@0/pci@4        /SYS/RCSA/PCIE16
    pci@4c0/pci@1/pci@0/pci@c/pci@0/pci@c /SYS/MB/SASHBA1 
    pci@4c0/pci@1/pci@0/pci@c/pci@0/pci@4 /SYS/RIO/NET2    
Added an additional service processor configuration:  # ldm add-spconfig split  # ldm list-spconfig factory-default primary split [current] 
And removed many of the resources from the primary domain:  # ldm start-reconf primary
# ldm set-core 4 primary
# ldm set-memory 32G primary
# ldm rm-io pci@340 primary
# ldm rm-io pci@380 primary
# ldm rm-io pci@3c0 primary
# ldm rm-io pci@400 primary
# ldm rm-io pci@440 primary
# ldm rm-io pci@480 primary
# ldm rm-io pci@4c0 primary
# init 6 
Needed to add resources to the guest domains:  # ldm add-domain db 
# ldm set-core cid=`seq -s"," 48 63` db # ldm add-memory mblock=0x180000000000:256G db 
# ldm add-io pci@480 db 
# ldm add-io pci@4c0 db  # ldm add-domain app  
# ldm set-core 44 app
# ldm set-memory 704G  app 
# ldm add-io pci@340 app
# ldm add-io pci@380 app
# ldm add-io pci@3c0 app
# ldm add-io pci@400 app
# ldm add-io pci@440 app     
Needed to set up services:  # ldm add-vds primary-vds0 primary # ldm add-vcc port-range=5000-5100 primary-vcc0 primary 
Needed to add a virtual network port for the WebLogic application domain:  # ipadm NAME              CLASS/TYPE STATE        UNDER      ADDR lo0               loopback   ok           --         --    lo0/v4         static     ok           --         ...    lo0/v6         static     ok           --         ... net0              ip         ok           --         ...    net0/v4        static     ok           --         xxx.xxx.xxx.xxx/24    net0/v6        addrconf   ok           --         ....    net0/v6        addrconf   ok           --         ... net8              ip         ok           --         --    net8/v4        static     ok           --         ...  # dladm show-phys LINK              MEDIA                STATE      SPEED  DUPLEX    DEVICE net1              Ethernet             unknown    0      unknown   ixgbe1 net0              Ethernet             up         1000   full      ixgbe0 net8              Ethernet             up         10     full      usbecm2  # ldm add-vsw net-dev=net0 primary-vsw0 primary # ldm add-vnet vnet1 primary-vsw0 app 
Needed to add a virtual disk to the WebLogic application domain:  # format Searching for disks...done   AVAILABLE DISK SELECTIONS:        0. c0t5000CCA02505F874d0 <HITACHI-H106060SDSUN600G-A2B0-558.91GB>           /scsi_vhci/disk@g5000cca02505f874           /dev/chassis/SPARC_T5-4.AK00084038/SYS/SASBP0/HDD0/disk        1. c0t5000CCA02506C468d0 <HITACHI-H106060SDSUN600G-A2B0-558.91GB>           /scsi_vhci/disk@g5000cca02506c468           /dev/chassis/SPARC_T5-4.AK00084038/SYS/SASBP0/HDD1/disk        2. c0t5000CCA025067E5Cd0 <HITACHI-H106060SDSUN600G-A2B0-558.91GB>           /scsi_vhci/disk@g5000cca025067e5c           /dev/chassis/SPARC_T5-4.AK00084038/SYS/SASBP0/HDD2/disk        3. c0t5000CCA02506C258d0 <HITACHI-H106060SDSUN600G-A2B0-558.91GB>           /scsi_vhci/disk@g5000cca02506c258           /dev/chassis/SPARC_T5-4.AK00084038/SYS/SASBP0/HDD3/disk Specify disk (enter its number): ^C  # ldm add-vdsdev /dev/dsk/c0t5000CCA02506C468d0s2 HDD1@primary-vds0 # ldm add-vdisk HDD1 HDD1@primary-vds0 app  
Add some additional spice to the pot:  # ldm set-variable auto-boot\\?=false db # ldm set-variable auto-boot\\?=false app # ldm set-var boot-device=HDD1 app 
Bind the logical domains:  # ldm bind db # ldm bind app 
At the end of the process, the system is set up like this:  # ldm list -o core,memory,physio NAME              primary            CORE     CID    CPUSET     0      (0, 1, 2, 3, 4, 5, 6, 7)     1      (8, 9, 10, 11, 12, 13, 14, 15)     2      (16, 17, 18, 19, 20, 21, 22, 23)     3      (24, 25, 26, 27, 28, 29, 30, 31)  MEMORY     RA               PA               SIZE                 0x30000000       0x30000000       32G  IO     DEVICE                           PSEUDONYM        OPTIONS     pci@300                          pci_0                pci@300/pci@1/pci@0/pci@6        /SYS/RCSA/PCIE1      pci@300/pci@1/pci@0/pci@c        /SYS/RCSA/PCIE2      pci@300/pci@1/pci@0/pci@4/pci@0/pci@c /SYS/MB/SASHBA0      pci@300/pci@1/pci@0/pci@4/pci@0/pci@8 /SYS/RIO/NET0    ------------------------------------------------------------------------------ NAME              app                CORE     CID    CPUSET     4      (32, 33, 34, 35, 36, 37, 38, 39)     5      (40, 41, 42, 43, 44, 45, 46, 47)     6      (48, 49, 50, 51, 52, 53, 54, 55)     7      (56, 57, 58, 59, 60, 61, 62, 63)     8      (64, 65, 66, 67, 68, 69, 70, 71)     9      (72, 73, 74, 75, 76, 77, 78, 79)     10     (80, 81, 82, 83, 84, 85, 86, 87)     11     (88, 89, 90, 91, 92, 93, 94, 95)     12     (96, 97, 98, 99, 100, 101, 102, 103)     13     (104, 105, 106, 107, 108, 109, 110, 111)     14     (112, 113, 114, 115, 116, 117, 118, 119)     15     (120, 121, 122, 123, 124, 125, 126, 127)     16     (128, 129, 130, 131, 132, 133, 134, 135)     17     (136, 137, 138, 139, 140, 141, 142, 143)     18     (144, 145, 146, 147, 148, 149, 150, 151)     19     (152, 153, 154, 155, 156, 157, 158, 159)     20     (160, 161, 162, 163, 164, 165, 166, 167)     21     (168, 169, 170, 171, 172, 173, 174, 175)     22     (176, 177, 178, 179, 180, 181, 182, 183)     23     (184, 185, 186, 187, 188, 189, 190, 191)     24     (192, 193, 194, 195, 196, 197, 198, 199)     25     (200, 201, 202, 203, 204, 205, 206, 207)     26     (208, 209, 210, 211, 212, 213, 214, 215)     27     (216, 217, 218, 219, 220, 221, 222, 223)     28     (224, 225, 226, 227, 228, 229, 230, 231)     29     (232, 233, 234, 235, 236, 237, 238, 239)     30     (240, 241, 242, 243, 244, 245, 246, 247)     31     (248, 249, 250, 251, 252, 253, 254, 255)     32     (256, 257, 258, 259, 260, 261, 262, 263)     33     (264, 265, 266, 267, 268, 269, 270, 271)     34     (272, 273, 274, 275, 276, 277, 278, 279)     35     (280, 281, 282, 283, 284, 285, 286, 287)     36     (288, 289, 290, 291, 292, 293, 294, 295)     37     (296, 297, 298, 299, 300, 301, 302, 303)     38     (304, 305, 306, 307, 308, 309, 310, 311)     39     (312, 313, 314, 315, 316, 317, 318, 319)     40     (320, 321, 322, 323, 324, 325, 326, 327)     41     (328, 329, 330, 331, 332, 333, 334, 335)     42     (336, 337, 338, 339, 340, 341, 342, 343)     43     (344, 345, 346, 347, 348, 349, 350, 351)     44     (352, 353, 354, 355, 356, 357, 358, 359)     45     (360, 361, 362, 363, 364, 365, 366, 367)     46     (368, 369, 370, 371, 372, 373, 374, 375)     47     (376, 377, 378, 379, 380, 381, 382, 383)  MEMORY     RA               PA               SIZE                 0x30000000       0x830000000      192G     0x4000000000     0x80000000000    256G     0x8080000000     0x100000000000   256G  IO     DEVICE                           PSEUDONYM        OPTIONS     pci@340                          pci_1                pci@380                          pci_2                pci@3c0                          pci_3                pci@400                          pci_4                pci@440                          pci_5                pci@340/pci@1/pci@0/pci@6        /SYS/RCSA/PCIE3      pci@340/pci@1/pci@0/pci@c        /SYS/RCSA/PCIE4      pci@380/pci@1/pci@0/pci@a        /SYS/RCSA/PCIE9      pci@380/pci@1/pci@0/pci@4        /SYS/RCSA/PCIE10     pci@3c0/pci@1/pci@0/pci@e        /SYS/RCSA/PCIE11     pci@3c0/pci@1/pci@0/pci@8        /SYS/RCSA/PCIE12     pci@400/pci@1/pci@0/pci@e        /SYS/RCSA/PCIE5      pci@400/pci@1/pci@0/pci@8        /SYS/RCSA/PCIE6      pci@440/pci@1/pci@0/pci@e        /SYS/RCSA/PCIE7      pci@440/pci@1/pci@0/pci@8        /SYS/RCSA/PCIE8  ------------------------------------------------------------------------------ NAME              db                 CORE     CID    CPUSET     48     (384, 385, 386, 387, 388, 389, 390, 391)     49     (392, 393, 394, 395, 396, 397, 398, 399)     50     (400, 401, 402, 403, 404, 405, 406, 407)     51     (408, 409, 410, 411, 412, 413, 414, 415)     52     (416, 417, 418, 419, 420, 421, 422, 423)     53     (424, 425, 426, 427, 428, 429, 430, 431)     54     (432, 433, 434, 435, 436, 437, 438, 439)     55     (440, 441, 442, 443, 444, 445, 446, 447)     56     (448, 449, 450, 451, 452, 453, 454, 455)     57     (456, 457, 458, 459, 460, 461, 462, 463)     58     (464, 465, 466, 467, 468, 469, 470, 471)     59     (472, 473, 474, 475, 476, 477, 478, 479)     60     (480, 481, 482, 483, 484, 485, 486, 487)     61     (488, 489, 490, 491, 492, 493, 494, 495)     62     (496, 497, 498, 499, 500, 501, 502, 503)     63     (504, 505, 506, 507, 508, 509, 510, 511)  MEMORY     RA               PA               SIZE                 0x80000000       0x180000000000   256G  IO     DEVICE                           PSEUDONYM        OPTIONS     pci@480                          pci_6                pci@4c0                          pci_7                pci@480/pci@1/pci@0/pci@a        /SYS/RCSA/PCIE13     pci@480/pci@1/pci@0/pci@4        /SYS/RCSA/PCIE14     pci@4c0/pci@1/pci@0/pci@8        /SYS/RCSA/PCIE15     pci@4c0/pci@1/pci@0/pci@4        /SYS/RCSA/PCIE16     pci@4c0/pci@1/pci@0/pci@c/pci@0/pci@c /SYS/MB/SASHBA1      pci@4c0/pci@1/pci@0/pci@c/pci@0/pci@4 /SYS/RIO/NET2    
Start the domains:  # ldm start app LDom app started # ldm start db  LDom db started 
Make sure to start the vntsd service that was created, above.  # svcs -a | grep ldo disabled        8:38:38 svc:/ldoms/vntsd:default online          8:38:58 svc:/ldoms/agents:default online          8:39:25 svc:/ldoms/ldmd:default  # svcadm enable vntsd  
Now use the MAC address to configure the Solaris 11 Automated Installation.   
   
     
       
        Database Logical Domain  
       
       
        # telnet localhost
                5000   
       
       
        {0} ok devalias 
                screen                  
                /pci@4c0/pci@1/pci@0/pci@c/pci@0/pci@7/display@0 
                disk7                   
                /pci@4c0/pci@1/pci@0/pci@c/pci@0/pci@c/scsi@0/disk@p3 
                disk6                   
                /pci@4c0/pci@1/pci@0/pci@c/pci@0/pci@c/scsi@0/disk@p2 
                disk5                   
                /pci@4c0/pci@1/pci@0/pci@c/pci@0/pci@c/scsi@0/disk@p1 
                disk4                   
                  /pci@4c0/pci@1/pci@0/pci@c/pci@0/pci@c/scsi@0/disk@p0 
                scsi1                   
                /pci@4c0/pci@1/pci@0/pci@c/pci@0/pci@c/scsi@0 
                net3                    
                /pci@4c0/pci@1/pci@0/pci@c/pci@0/pci@4/network@0,1 
                net2                    
                /pci@4c0/pci@1/pci@0/pci@c/pci@0/pci@4/network@0 
                virtual-console          /virtual-devices/console@1 
                name                     aliases   
       
       
        {0} ok boot net2  
                Boot device:
                /pci@4c0/pci@1/pci@0/pci@c/pci@0/pci@4/network@0  File
                and args:  
                1000 Mbps full duplex Link up Requesting Internet Address for xx:xx:xx:xx:xx:xx Requesting Internet Address for xx:xx:xx:xx:xx:xx  
       
       
        WLS Logical Domain 
       
       
        # telnet localhost
                5001 
       
       
        {0} ok devalias hdd1                    
                /virtual-devices@100/channel-devices@200/disk@0 vnet1                   
                /virtual-devices@100/channel-devices@200/network@0 net                     
                /virtual-devices@100/channel-devices@200/network@0 disk                    
                  /virtual-devices@100/channel-devices@200/disk@0 virtual-console         
                /virtual-devices/console@1 name                     aliases  
       
       
        {0} ok boot net Boot device:
                /virtual-devices@100/channel-devices@200/network@0  File
                and args:  Requesting Internet Address for xx:xx:xx:xx:xx:xx Requesting Internet Address for xx:xx:xx:xx:xx:xx 
       
     
   
    Repeat the process for the second SPARC T5-4, install Solaris, RAC 
and WebLogic Cluster, and you are ready to go. Maybe buying a 
SuperCluster would have been easier.