solaris裸设备和格式化分区和查看硬盘
# format ====查看已经挂接上的硬盘==Searching for disks...done
AVAILABLE DISK SELECTIONS:
0. c0d0 <DEFAULT cyl 7293 alt 2 hd 255 sec 63>
/pci@0,0/pci-ide@1f,2/ide@0/cmdk@0,0
1. c2t1d0 <DEFAULT cyl 157 alt 2 hd 64 sec 32>（这个数字是硬盘的容量）=160m
/iscsi/disk@0000iqn.2006-01.com.openfiler%3Arac1.ocr0001,0
2. c2t2d0 <DEFAULT cyl 61 alt 2 hd 64 sec 32>
/iscsi/disk@0000iqn.2006-01.com.openfiler%3Arac1.vot0001,0
3. c2t3d0 <DEFAULT cyl 157 alt 2 hd 64 sec 32>
/iscsi/disk@0000iqn.2006-01.com.openfiler%3Arac1.asmspfile0001,0
4. c2t4d0 <DEFAULT cyl 11473 alt 2 hd 255 sec 63>
/iscsi/disk@0000iqn.2006-01.com.openfiler%3Arac1.asm10001,0
5. c2t5d0 <DEFAULT cyl 11473 alt 2 hd 255 sec 63>
/iscsi/disk@0000iqn.2006-01.com.openfiler%3Arac1.asm20001,0
6. c2t6d0 <DEFAULT cyl 12746 alt 2 hd 255 sec 63>
/iscsi/disk@0000iqn.2006-01.com.openfiler%3Arac1.asm30001,0
Specify disk (enter its number): 1
selecting c2t1d0
FORMAT MENU
disk - select a disk
type - select (define) a disk type
partition - select (define) a partition table
current - describe the current disk
format - format and analyze the disk
fdisk - run the fdisk program
repair - repair a defective sector
label - write label to the disk
analyze - surface analysis
defect - defect list management
backup - search for backup labels
verify - read and display labels
save - save new disk/partition definitions
inquiry - show vendor, product and revision
volname - set 8-character volume name
!<cmd> - execute <cmd>, then return
format> partition==分区硬盘==
Please run fdisk first
format> fdisk ===格式化硬盘====
No fdisk table exists. The default partition for the disk is:
a 100% "SOLARIS system" partition
Type "y" to accept the default partition, otherwise type "n" to edit the partition table.
y
format> partition===在格式化硬盘后，分区===
PARTITION MENU:
0 - change '0' partition
1 - change '1' partition
2 - change '2' partition
3 - change '3' partition
4 - change '4' partition
5 - change '5' partition
6 - change '6' partition
7 - change '7' partition
select - select a predefined table
modify - modify a predefined partition table
name - name the current table
print- display the current table
label- write the partition map and label to the disk
!<cmd> - execute <cmd>, then return
quit
partition> print ==查看，当前分区表====（ c2t1d0 硬盘上）
Current partition table (original):
Total disk cylinders（圆柱） available: 156 + 2 (reserved cylinders)
Part Tag Flag Cylinders Size Blocks
0 unassigned wm 0 0 (0/0/0) 0
1 unassigned wm 0 0 (0/0/0) 0
2 backup wu 0 - 156 157.00MB (157/0/0) 321536
3 unassigned wm 0 0 (0/0/0) 0
4 unassigned wm 0 0 (0/0/0) 0
5 unassigned wm 0 0 (0/0/0) 0
6 unassigned wm 0 0 (0/0/0) 0
7 unassigned wm 0 0 (0/0/0) 0
8 boot wu 0 - 0 1.00MB (1/0/0) 2048
9 unassigned wm 0 0 (0/0/0) 0
partition> 1
Part Tag Flag Cylinders Size Blocks
1 unassigned wm 0 0 (0/0/0) 0
Enter partition id tag:
Enter partition permission flags:
Enter new starting cyl: 3
Enter partition size: 153c ===153 cyl(圆柱)=
partition> label--加标签
Ready to label disk, continue? y
=====================
说明：
Flag：wm=磁盤分區是寫并且可mount的 write mount
wu=磁盤分區是可寫并且不可mount的 write unmount
rm=磁盤分區是可讀并且可mount的 read mount
ru=磁盤分區是可讀并且不可mount的 read unmount
Current partition table (original):
Total disk cylinders available: 14087 + 2 (reserved cylinders)
Part Tag Flag Cylinders Size Blocks
0 root wm 0 -1610 7.82GB (1611/0/0) 16393536
1 swap wu 1611 -2013 1.96GB (403/0/0) 4100928
2 backup wm 0 - 14086 68.35GB (14087/0/0) 143349312
3 unassigned wm 0 0 (0/0/0) 0
4 unassigned wm 0 0 (0/0/0) 0
5 unassigned wm 0 0 (0/0/0) 0
6 unassigned wm 0 0 (0/0/0) 0
7 unassigned wm 0 0 (0/0/0) 0
partition> 7
Part Tag Flag Cylinders Size Blocks
7 unassigned wm 0 0 (0/0/0) 0
Enter partition id tag: --之前定義的可選的標記符
--( 只可以使用 unassigned, boot, root, swap, usr, backup, stand, var, home, alternates )
Enter partition permission flags: --之前定義的的可選的標示位
--( wm - read-write, mountable，wu - read-write, unmountable，rm - read-only, mountable，ru - --read-only, unmountable )
Flag：wm=磁盤分區是寫并且可mount的
wu=磁盤分區是可寫并且不可mount的
rm=磁盤分區是可讀并且可mount的
ru=磁盤分區是可讀并且不可mount的
Cylinders分區的起始柱頭數和中止柱頭數
Enter new starting cyl: 2014
Enter partition size: 100mb
partition> lab --將當前定義的分區寫入磁盤卷標
Ready to label disk, continue? y
partition> s --save - save new disk/partition definitions
切忌，第二個分區（分區編號為 2）稱為備份分區，她是整個磁盤
重点：
这个过程一般可以分为3个步骤：(更好理解)
1. 物理格式化，也就是通常所说的低级格式化（Low-Level Formatting，LLF）; ==fdisk
2. 分区； ==partition
3. 逻辑格式化，也就是通常所说的高级格式化（High-Level Formatting，HLF） ==format
1.磁盘管理-——分区命名惯例
对于每个一磁盘分片，通常以cxtxdxsx表示，其中c/t/d/s的含义如下：
*C代表控制器标号。控制器位于主板上面，所谓控制器，就是控制，发出命令的器件。
*T代表目标编号。即分配给每个存储设备的一个唯一的硬件地址。
*D代表磁盘编号。这个数字反映的是目标位置上的磁盘号，即具体的磁盘
*S代表分片编号。通常从0～7，即分区的号码了=重要
比如上面的c0t0d0
裸设备存放地址：===重点
============/dev/rdsk/c2t1d0s* 下面已经都有了，=====
#chown root:dba /dev/rdsk/c2t1d0s1
# chmod 660 /dev/rdsk/c2t1d0s1
# chown oracle:dba /dev/rdsk/c2t2d0s1
# chmod 660 /dev/rdsk/c2t2d0s1
# chown oracle:dba /dev/rdsk/c2t3d0s1
# chown oracle:dba /dev/rdsk/c2t4d0s1
# chown oracle:dba /dev/rdsk/c2t5d0s1
# chown oracle:dba /dev/rdsk/c2t6d0s1
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