需求：

    一台SUN主机，需要添加硬盘到原来的文件系统，解决当前文件系统空间不足的问题：

   经过在X86主机上实验，得出下的操作记录：

查找系统硬盘，对主机进行search
# devfsadm

查看当前是否找到硬盘：
# format
Searching for disks...done

AVAILABLE DISK SELECTIONS:
       0. c0d0 <DEFAULT cyl 1563 alt 2 hd 255 sec 63>
          /pci@0,0/pci-ide@7,1/ide@0/cmdk@0,0
       1. c0d1 <DEFAULT cyl 4093 alt 2 hd 128 sec 32>
          /pci@0,0/pci-ide@7,1/ide@0/cmdk@1,0
       2. c1d1 <DEFAULT cyl 4093 alt 2 hd 128 sec 32>
          /pci@0,0/pci-ide@7,1/ide@1/cmdk@1,0
Specify disk (enter its number):

创建一个d20 的stripe
# metainit d20 1 1 c0d1s2
d20: Concat/Stripe is setup
#

查看当前状态

# metastat
d20: Concat/Stripe
    Size: 33497088 blocks (15 GB)
    Stripe 0:
        Device   Start Block  Dbase     Reloc
        c0d1s2          0     No        Yes
    Stripe 1:
        Device   Start Block  Dbase     Reloc
        c1d1s2      28672     Yes       Yes

Device Relocation Information:
Device   Reloc  Device ID
c0d1   Yes      id1,cmdk@AVMware_Virtual_IDE_Hard_Drive=01000000000000000001
c1d1   Yes      id1,cmdk@AVMware_Virtual_IDE_Hard_Drive=11000000000000000001
#

# find ./ -name d20
./dev/md/rdsk/d20
./dev/md/dsk/d20

建设一个文件系统：

# newfs /dev/md/rdsk/d20
/dev/md/rdsk/d20: Unable to find Media type. Proceeding with system determined .
newfs: construct a new file system /dev/md/rdsk/d20: (y/n)? y
/dev/md/rdsk/d20: Unable to find Media type. Proceeding with system determined .
/dev/md/rdsk/d20:       16736256 sectors in 2724 cylinders of 48 tracks, 128 ses
        8172.0MB in 171 cyl groups (16 c/g, 48.00MB/g, 5824 i/g)
super-block backups (for fsck -F ufs -o b=#) at:
 32, 98464, 196896, 295328, 393760, 492192, 590624, 689056, 787488, 885920,
 15831200, 15929632, 16028064, 16126496, 16224928, 16323360, 16421792,
 16520224, 16618656, 16717088
#

查看当前状态

# metastat
d20: Concat/Stripe
    Size: 16736256 blocks (8.0 GB)
    Stripe 0:
        Device   Start Block  Dbase     Reloc
        c0d1s2      28672     Yes       Yes

Device Relocation Information:
Device   Reloc  Device ID
c0d1   Yes      id1,cmdk@AVMware_Virtual_IDE_Hard_Drive=01000000000000000001
#

添加一块硬盘：c1d1s2

# metattach d20 c1d1s2
d20: component is attached

再查看一下状态：

# metastat
d20: Concat/Stripe
    Size: 33468416 blocks (15 GB)
    Stripe 0:
        Device   Start Block  Dbase     Reloc
        c0d1s2      28672     Yes       Yes
    Stripe 1:
        Device   Start Block  Dbase     Reloc
        c1d1s2      28672     Yes       Yes

Device Relocation Information:
Device   Reloc  Device ID
c0d1   Yes      id1,cmdk@AVMware_Virtual_IDE_Hard_Drive=01000000000000000001
c1d1   Yes      id1,cmdk@AVMware_Virtual_IDE_Hard_Drive=11000000000000000001
#

再在线扩展文件系统：

# growfs -v /dev/md/rdsk/d20
/usr/lib/fs/ufs/mkfs -G /dev/md/rdsk/d20 33468416
/dev/md/rdsk/d20: Unable to find Media type. Proceeding with system determined .
Warning: 4096 sector(s) in last cylinder unallocated
/dev/md/rdsk/d20:       33468416 sectors in 5448 cylinders of 48 tracks, 128 ses
        16342.0MB in 341 cyl groups (16 c/g, 48.00MB/g, 5824 i/g)
super-block backups (for fsck -F ufs -o b=#) at:
 32, 98464, 196896, 295328, 393760, 492192, 590624, 689056, 787488, 885920,
Initializing cylinder groups:
......
super-block backups for last 10 cylinder groups at:
 32540064, 32638496, 32736928, 32835360, 32933792, 33032224, 33130656,
 33229088, 33327520, 33425952

＃df -hk  /mnt

查看文件系统大小