본문 바로가기

Hadoop Ecosystem

ucloud server disk use summay

http://deepblue28.tistory.com/34

http://www.anycoding.com/bbs/board.php?bo_table=acProgram_Etc&wr_id=671

http://www.lug.or.kr/docs/LINUX/others/01-05-4.htm


[root@h002 ~]# fdisk -l


Disk /dev/xvdb: 85.9 GB, 85899345920 bytes

255 heads, 63 sectors/track, 10443 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000



Disk /dev/xvda: 21.5 GB, 21474836480 bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x0006057d


    Device Boot      Start         End      Blocks   Id  System

/dev/xvda1   *           1          64      512000   83  Linux

Partition 1 does not end on cylinder boundary.

/dev/xvda2              64        2611    20458496   8e  Linux LVM


Disk /dev/mapper/VolGroup-lv_root: 18.8 GB, 18832424960 bytes

255 heads, 63 sectors/track, 2289 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000



Disk /dev/mapper/VolGroup-lv_swap: 2113 MB, 2113929216 bytes

255 heads, 63 sectors/track, 257 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000



[root@h002 ~]# df -h

Filesystem            Size  Used Avail Use% Mounted on

/dev/mapper/VolGroup-lv_root

                       18G  2.9G   14G  18% /

tmpfs                 497M     0  497M   0% /dev/shm

/dev/xvda1            485M   52M  408M  12% /boot



[root@h002 ~]# ls /dev/xv*


/dev/xvda  /dev/xvda1  /dev/xvda2  /dev/xvdb



[root@h002 ~]# ls -alrt /dev/xv*


brw-rw---- 1 root disk 202, 16 Aug  6 00:12 /dev/xvdb

brw-rw---- 1 root disk 202,  0 Aug  6 00:12 /dev/xvda

brw-rw---- 1 root disk 202,  2 Aug  6 00:12 /dev/xvda2

brw-rw---- 1 root disk 202,  1 Aug  6 00:12 /dev/xvda1



[root@h002 ~]# fdisk /dev/xvdb


Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel

Building a new DOS disklabel with disk identifier 0xcdeb3ca0.

Changes will remain in memory only, until you decide to write them.

After that, of course, the previous content won't be recoverable.


Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)


WARNING: DOS-compatible mode is deprecated. It's strongly recommended to

         switch off the mode (command 'c') and change display units to

         sectors (command 'u').


Command (m for help): p


Disk /dev/xvdb: 85.9 GB, 85899345920 bytes

255 heads, 63 sectors/track, 10443 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0xcdeb3ca0


    Device Boot      Start         End      Blocks   Id  System


Command (m for help): n

Command action

   e   extended

   p   primary partition (1-4)

p

Partition number (1-4): 1

First cylinder (1-10443, default 1):      <-- Enter

Using default value 1

Last cylinder, +cylinders or +size{K,M,G} (1-10443, default 10443):  <-- Enter

Using default value 10443


Command (m for help): t

Selected partition 1

Hex code (type L to list codes): 8e

Changed system type of partition 1 to 8e (Linux LVM)


Command (m for help): w

The partition table has been altered!


Calling ioctl() to re-read partition table.

Syncing disks.





[root@h002 ~]# fdisk -l

Disk /dev/xvdb: 85.9 GB, 85899345920 bytes
255 heads, 63 sectors/track, 10443 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xcdeb3ca0

    Device Boot      Start         End      Blocks   Id  System
/dev/xvdb1               1       10443    83883366   8e  Linux LVM

Disk /dev/xvda: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0006057d

    Device Boot      Start         End      Blocks   Id  System
/dev/xvda1   *           1          64      512000   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/xvda2              64        2611    20458496   8e  Linux LVM

Disk /dev/mapper/VolGroup-lv_root: 18.8 GB, 18832424960 bytes
255 heads, 63 sectors/track, 2289 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/mapper/VolGroup-lv_swap: 2113 MB, 2113929216 bytes
255 heads, 63 sectors/track, 257 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

[root@h002 ~]# pvcreate /dev/xvdb1
  
Writing physical volume data to disk "/dev/xvdb1"
  Physical volume "/dev/xvdb1" successfully created


[root@h002 ~]# vgcreate DataVG /dev/xvdb1

  Volume group "DataVG" successfully created


[root@h002 ~]# vgdisplay

  --- Volume group ---
  VG Name               DataVG
  System ID
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  1
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                0
  Open LV               0
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               80.00 GiB
  PE Size               4.00 MiB
  Total PE              20479
  Alloc PE / Size       0 / 0
  Free  PE / Size       20479 / 80.00 GiB
  VG UUID               ClHE6y-d6qv-mhzt-RBeF-0eme-SC99-lQCjZu

  --- Volume group ---
  VG Name               VolGroup
  System ID
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  3
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                2
  Open LV               2
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               19.51 GiB
  PE Size               4.00 MiB
  Total PE              4994
  Alloc PE / Size       4994 / 19.51 GiB
  Free  PE / Size       0 / 0
  VG UUID               a8xHxz-mvHs-hO0v-h2Uo-zuk8-ePQV-ZP5Npm


[root@h002 ~]# lvdisplay
 
 --- Logical volume ---
  LV Path                /dev/VolGroup/lv_root
  LV Name                lv_root
  VG Name                VolGroup
  LV UUID                Fe9wj4-KoHv-IS4L-qd7E-SljS-AmpI-BE8OWe
  LV Write Access        read/write
  LV Creation host, time localhost.localdomain, 2012-08-02 16:54:37 +0900
  LV Status              available
  # open                 1
  LV Size                17.54 GiB
  Current LE             4490
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0

  --- Logical volume ---
  LV Path                /dev/VolGroup/lv_swap
  LV Name                lv_swap
  VG Name                VolGroup
  LV UUID                nEU1oX-UmqO-Euzs-ZS9S-4Dve-dhGf-QS41hK
  LV Write Access        read/write
  LV Creation host, time localhost.localdomain, 2012-08-02 16:54:39 +0900
  LV Status              available
  # open                 1
  LV Size                1.97 GiB
  Current LE             504
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:1



[root@h002 ~]# lvcreate -L 80g -n data00 DataVG     // 숫자 80 과  00 임

  Volume group "DataVG" has insufficient free space (20479 extents): 20480 required.


[root@h002 ~]# lvcreate -l  20479 -n data00 DataVG

  Logical volume "data00" created


[root@h002 ~]# lvdisplay

  --- Logical volume ---
  LV Path                /dev/DataVG/data00
  LV Name                data00
  VG Name                DataVG
  LV UUID                8u4d8X-NnOV-f7fc-n54L-6e13-NojD-5vG8jB
  LV Write Access        read/write
  LV Creation host, time h002, 2013-08-06 01:19:24 +0900
  LV Status              available
  # open                 0
  LV Size                80.00 GiB
  Current LE             20479
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:2


  --- Logical volume ---
  LV Path                /dev/VolGroup/lv_root
  LV Name                lv_root
  VG Name                VolGroup
  LV UUID                Fe9wj4-KoHv-IS4L-qd7E-SljS-AmpI-BE8OWe
  LV Write Access        read/write
  LV Creation host, time localhost.localdomain, 2012-08-02 16:54:37 +0900
  LV Status              available
  # open                 1
  LV Size                17.54 GiB
  Current LE             4490
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0

  --- Logical volume ---
  LV Path                /dev/VolGroup/lv_swap
  LV Name                lv_swap
  VG Name                VolGroup
  LV UUID                nEU1oX-UmqO-Euzs-ZS9S-4Dve-dhGf-QS41hK
  LV Write Access        read/write
  LV Creation host, time localhost.localdomain, 2012-08-02 16:54:39 +0900
  LV Status              available
  # open                 1
  LV Size                1.97 GiB
  Current LE             504
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:1



[root@h002 ~]# df -h

Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup-lv_root
                       18G  2.9G   14G  18% /
tmpfs                 497M     0  497M   0% /dev/shm
/dev/xvda1            485M   52M  408M  12% /boot


[root@h002 ~]# fdisk -l

Disk /dev/xvdb: 85.9 GB, 85899345920 bytes
255 heads, 63 sectors/track, 10443 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xcdeb3ca0

    Device Boot      Start         End      Blocks   Id  System
/dev/xvdb1               1       10443    83883366   8e  Linux LVM

Disk /dev/xvda: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0006057d

    Device Boot      Start         End      Blocks   Id  System
/dev/xvda1   *           1          64      512000   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/xvda2              64        2611    20458496   8e  Linux LVM

Disk /dev/mapper/VolGroup-lv_root: 18.8 GB, 18832424960 bytes
255 heads, 63 sectors/track, 2289 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/mapper/VolGroup-lv_swap: 2113 MB, 2113929216 bytes
255 heads, 63 sectors/track, 257 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/mapper/DataVG-data00: 85.9 GB, 85895151616 bytes
255 heads, 63 sectors/track, 10442 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000



[root@h002 ~]# mkfs.ext4 /dev/DataVG/data00
mke2fs 1.41.12 (17-May-2010)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
5242880 inodes, 20970496 blocks
1048524 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
640 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
        4096000, 7962624, 11239424, 20480000

Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 22 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.


[root@h002 ~]# mount /dev/DataVG/data00 /mnt/tmp
mount: mount point /mnt/tmp does not exist

[root@h002 ~]# mount /dev/DataVG/data00 /home/

[root@h002 ~]# df -h

Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup-lv_root
                       18G  2.9G   14G  18% /
tmpfs                 497M     0  497M   0% /dev/shm
/dev/xvda1            485M   52M  408M  12% /boot
/dev/mapper/DataVG-data00
                       79G  184M   75G   1% /home

[root@h002 ~]#