Solaris下，一个磁盘包含8个分区，标记为0－7。 分区0位根分区，包含启动的信息 分区2代表整个磁盘 交换分区可以是任何分区，默认为分区1 其它分区用户存放数据 逻辑设备名存放在/dev/dsk和/dev/rdsk中。这些名称是/devices目录下的符号连接。使用逻辑设备名便于系统管理员操作。 Sun使用下列命名方式定义逻辑设备名： /dev/[r]dsk/c#t#d#s# c:逻辑控制器号 t:物理总线目标号 d:磁盘或逻辑单元号(LUN) s:分区号 物理设备名表示设备的完整信息，如设备总线地址。物理设备名在/devices目录下。 # ls -l /dev/dsk/c0t3d0s0 lrwxrwxrwx 1 root root 86 Oct 20 16:04 /dev/dsk/c0t3d0s3 -> ../../devices/iommu@0,10000000/sbus@0,10001000/espdma@5,8400000/esp@5,880 0000/sd@3,0:d 实例名是系统设备的简称。例如： sdn where s = SCSI, d = disk, and n = 逻辑磁盘号，例如sd0，表示第一个SCSI磁盘设备。 dmesg显示实例名 dmesg命令鉴别系统所连接的设备。以实例和物理设备名称的方式显示。 # dmesg|more May 13 20:18 cpu0: SUNW,UltraspARC (upaid 0 impl 0x10 ver 0x40 clock 167 MHz) SunOS Release 5.7 Version Generic [UNIX(R) System V Release 4.0] Copyright (c) 1983-1998, Sun Microsystems, Inc. NOTICE: 64 bit OS installed, but the 32-bit OS is the default for the PRocessor(s) on this system. See boot(1M) for more information. Booting the 32-bit OS ... mem = 196608K (0xc000000) avail mem = 189440000 Ethernet address = 8:0:20:9b:60:b5 root nexus = Sun Ultra 1 SBus (UltraSPARC 167MHz) sbus0 at root: UPA 0x1f 0x0 ... sbus0 is /sbus@1f,0 dma0 at sbus0: SBus0 slot 0xe offset 0x8400000 dma0 is /sbus@1f,0/espdma@e,8400000 /sbus@1f,0/espdma@e,8400000/esp@e,8800000 (esp0): esp-options=0x46 ... ... prtconf用于显示系统的配置信息，包括内存、外围设备等。 # prtconf|more System Configuration: Sun Microsystems sun4u Memory size: 192 Megabytes System Peripherals (Software Nodes): SUNW,Ultra-1 packages (driver not attached) terminal-emulator (driver not attached) deblocker (driver not attached) obp-tftp (driver not attached) disk-label (driver not attached) sun-keyboard (driver not attached) ufs-file-system (driver not attached) chosen (driver not attached) openprom (driver not attached) client-services (driver not attached) options, instance #0 aliases (driver not attached) memory (driver not attached) virtual-memory (driver not attached) counter-timer (driver not attached) sbus, instance #0 SUNW,CS4231, instance #0 (driver not attached) auxio (driver not attached) ... ... 当在系统中增加新设备时，需要重新配置系统的硬件信息。这样，系统就会重新构建/devices和/dev目录。 下面是新增加硬盘的步骤： 1.在根目录下创建一个名为/reconfiguration的空文件，然后重新关机。 2. 将硬盘接上机器，然后开机。 3.用format命令查看新增的硬盘。 # touch /reconfigure # init 5 # format |
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