An alternative way to display system configuration information and show the state of tunable parameters is to type sysdef and press Return. System configuration information is displayed:

castle% sysdef
*
* Hostid
*
  727014d0
*
* sun4m Configuration
*
*
* Devices
*
packages (driver not attached)
        disk-label (driver not attached)
        deblocker (driver not attached)
        obp-tftp (driver not attached)
options, instance #0
aliases (driver not attached)
openprom (driver not attached)
iommu, instance #0
        sbus, instance #0
                espdma, instance #0
                        esp, instance #0
                                sd (driver not attached)
                                st (driver not attached)
                                sd, instance #0 (driver not attached)
                                sd, instance #1 (driver not attached)
                                sd, instance #2 (driver not attached)
                                sd, instance #3
                                sd, instance #4 (driver not attached)
                                sd, instance #5 (driver not attached)
                                sd, instance #6 (driver not attached)
                ledma, instance #0
                        le, instance #0
                SUNW,bpp (driver not attached)
                SUNW,DBRIe (driver not attached)
                        mmcodec (driver not attached)
                cgsix, instance #0
obio, instance #0
        zs, instance #0
        zs, instance #1
        eeprom (driver not attached)
        counter (driver not attached)
        interrupt (driver not attached)
        SUNW,fdtwo, instance #0
        auxio (driver not attached)
        power (driver not attached)
memory (driver not attached)
virtual-memory (driver not attached)
eccmemctl (driver not attached)
TI,TMS390Z55 (driver not attached)
pseudo, instance #0
        clone, instance #0
        ip, instance #0
        tcp, instance #0
        udp, instance #0
        icmp, instance #0
        arp, instance #0
        sad, instance #0
        consms, instance #0
        conskbd, instance #0
        wc, instance #0
        iwscn, instance #0
        ptsl, instance #0
        tl, instance #0
        cn, instance #0
        mm, instance #0
        openeepr, instance #0
        kstat, instance #0
        log, instance #0
        sy, instance #0
        pm, instance #0
        vol, instance #0
        ptm, instance #0
        pts, instance #0
        ksyms, instance #0
*
* Loadable Objects
*
genunix
drv/arp
        hard link:  strmod/arp
drv/arp
drv/be
(More information not shown in this example)
exec/aoutexec
exec/elfexec
exec/intpexec
fs/cachefs
fs/fifofs
fs/hsfs
fs/lofs
fs/nfs
        hard link:  sys/nfs
fs/procfs
fs/sockfs
fs/specfs
fs/tmpfs
fs/ufs
fs/autofs
misc/consconfig
misc/des
misc/ipc
misc/klmmod
misc/klmops
misc/krtld
misc/nfs_dlboot
misc/nfssrv
misc/rpcsec
misc/rpcsec_gss
misc/scsi
(More information not shown in this example)
sched/TS
sched/TS_DPTBL
strmod/bufmod
strmod/connld
strmod/dedump
strmod/ldterm
(More information not shown in this example)
sys/c2audit
sys/doorfs
sys/inst_sync
sys/kaio
sys/msgsys
sys/pipe
sys/pset
sys/semsys
sys/shmsys
*
* System Configuration
*
  swap files
swapfile             dev  swaplo blocks   free
/dev/dsk/c0t3d0s1   32,25      8 224096 224096
*
* Tunable Parameters
*
 1298432        maximum memory allowed in buffer cache (bufhwm)
     986        maximum number of processes (v.v_proc)
      99        maximum global priority in sys class (MAXCLSYSPRI)
     981        maximum processes per user id (v.v_maxup)
      30        auto update time limit in seconds (NAUTOUP)
      25        page stealing low water mark (GPGSLO)
       5        fsflush run rate (FSFLUSHR)
      25        minimum resident memory for avoiding deadlock (MINARMEM)
      25        minimum swapable memory for avoiding deadlock (MINASMEM)
*
* Utsname Tunables
*
     5.6  release (REL)
  castle  node name (NODE)
   SunOS  system name (SYS)
 Generic  version (VER)
*
* Process Resource Limit Tunables (Current:Maximum)
*
ffffffff:fffffffd       cpu time
ffffffff:fffffffd       file size
ffffffff:fffffffd       heap size
ffffffff:fffffffd       stack size
       0:7ffff000       core file size
ffffffff:fffffffd       file descriptors
       0:  800000       mapped memory
*
* Streams Tunables
*
     9  maximum number of pushes allowed (NSTRPUSH)
 65536  maximum stream message size (STRMSGSZ)
  1024  max size of ctl part of message (STRCTLSZ)
*
* IPC Messages
*
     0  entries in msg map (MSGMAP)
     0  max message size (MSGMAX)
     0  max bytes on queue (MSGMNB)
     0  message queue identifiers (MSGMNI)
     0  message segment size (MSGSSZ)
     0  system message headers (MSGTQL)
     0  message segments (MSGSEG)
*
* IPC Semaphores
*
    10  entries in semaphore map (SEMMAP)
    10  semaphore identifiers (SEMMNI)
    60  semaphores in system (SEMMNS)
    30  undo structures in system (SEMMNU)
    25  max semaphores per id (SEMMSL)
    10  max operations per semop call (SEMOPM)
    10  max undo entries per process (SEMUME)
 32767  semaphore maximum value (SEMVMX)
 16384  adjust on exit max value (SEMAEM)
*
* IPC Shared Memory
*
   1048576      max shared memory segment size (SHMMAX)
     1  min shared memory segment size (SHMMIN)
   100  shared memory identifiers (SHMMNI)
     6  max attached shm segments per process (SHMSEG)
*
* Time Sharing Scheduler Tunables
*
60      maximum time sharing user priority (TSMAXUPRI)
SYS     system class name (SYS_NAME)
castle%