1、HP-UX添加磁盘并扩容到现有目录下

1、查看现有磁盘信息：

modap2$ioscan -fnNC disk
Class     I  H/W Path  Driver S/W State   H/W Type     Description
===================================================================
disk      1  64000/0xfa00/0x1   esdisk   CLAIMED     DEVICE       HP      LOGICAL VOLUME
                      /dev/disk/disk1      /dev/disk/disk1_p1   /dev/disk/disk1_p2   /dev/disk/disk1_p3   /dev/rdisk/disk1     /dev/rdisk/disk1_p1  /dev/rdisk/disk1_p2  /dev/rdisk/disk1_p3
disk     10  64000/0xfa00/0x3   esdisk   CLAIMED     DEVICE       3PARdataVV
                      /dev/disk/disk10   /dev/rdisk/disk10
disk     19  64000/0xfa00/0x1a  esdisk   CLAIMED     DEVICE       3PARdataVV
                      /dev/disk/disk19   /dev/rdisk/disk19

2、查看某个磁盘信息：

modap2$diskinfo /dev/rdisk/disk10
SCSI describe of /dev/rdisk/disk10:
             vendor: 3PARdata
         product id: VV              
               type: direct access
               size: 838860800 Kbytes
   bytes per sector: 512

3、将新加的磁盘创建PV：

modap2$pvcreate /dev/rdisk/disk19
Physical volume "/dev/rdisk/disk19" has been successfully created.

4、将磁盘添加到VG中：

modap2$vgextend vg01  /dev/disk/disk19
 vgextend: Warning: Max_PE_per_PV for the volume group (3199) too small for this PV (4095).
Using only 3199 PEs from this physical volume.
Volume group "vg01" has been successfully extended.
Volume Group configuration for /dev/vg01 has been saved in /etc/lvmconf/vg01.conf

5、扩展LV：

1、查看VG信息：
modap2$vgdisplay vg01
 --- Volume groups ---
 VG Name                     /dev/vg01
 VG Write Access             read/write     
 VG Status                   available                 
 Max LV                      255    
 Cur LV                      1      
 Open LV                     1      
 Max PV                      16     
 Cur PV                      2      
 Act PV                      2      
 Max PE per PV               3199         
 VGDA                        4   
 PE Size (Mbytes)            256             
 Total PE                    6398    
 Alloc PE                    3199    
 Free PE                     3199    
 Total PVG                   0        
 Total Spare PVs             0              
 Total Spare PVs in use      0                     
 VG Version                  1.0       
 VG Max Size                 12796g     
 VG Max Extents              51184     

2、扩展LV： 

modap2$lvextend -l 6398 /dev/vg01/applog
Logical volume "/dev/vg01/applog" has been successfully extended.
Volume Group configuration for /dev/vg01 has been saved in /etc/lvmconf/vg01.conf

6、扩展文件目录：

1、查看目录可扩展的大小：
modap2$lvdisplay /dev/vg01/applog
--- Logical volumes ---
LV Name                     /dev/vg01/applog
VG Name                     /dev/vg01
LV Permission               read/write                
LV Status                   available/syncd           
Mirror copies               0            
Consistency Recovery        MWC                 
Schedule                    parallel      
LV Size (Mbytes)            1637888         
Current LE                  6398      
Allocated PE                6398        
Stripes                     0       
Stripe Size (Kbytes)        0                   
Bad block                   on           
Allocation                  strict                    
IO Timeout (Seconds)        default   

2、扩展文件目录：

modap1$fsadm -F vxfs -b 1637888M /applog
UX:vxfs fsadm: INFO: V-3-25942: /dev/vg01/rapplog size increased from 838598656 sectors to 1677197312 sectors