[root@node0 host2]# grep mpt /sys/class/scsi_host/host?/proc_name/sys/class/scsi_host/host2/proc_name:mptspi[root@node0 host2]# vi /etc/exports [root@node0 host2]# echo "- - -" > /sys/class/scsi_host/host2/scan [root@node0 host2]# fdisk -lDisk /dev/sda: 21.5 GB, 21474836480 bytes255 heads, 63 sectors/track, 2610 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x00056562   Device Boot      Start         End      Blocks   Id  System/dev/sda1   *           1          39      307200   83  LinuxPartition 1 does not end on cylinder boundary./dev/sda2              39        2358    18631680   83  Linux/dev/sda3            2358        2611     2031616   82  Linux swap / SolarisDisk /dev/sdb: 1073 MB, 1073741824 bytes255 heads, 63 sectors/track, 130 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x00000000

[root@node0 host2]# fdisk /dev/sdb Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabelBuilding a new DOS disklabel with disk identifier 0x55dbe72b.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): mCommand action   a   toggle a bootable flag   b   edit bsd disklabel   c   toggle the dos compatibility flag   d   delete a partition   l   list known partition types   m   print this menu   n   add a new partition   o   create a new empty DOS partition table   p   print the partition table   q   quit without saving changes   s   create a new empty Sun disklabel   t   change a partition's system id   u   change display/entry units   v   verify the partition table   w   write table to disk and exit   x   extra functionality (experts only)Command (m for help): nCommand action   e   extended   p   primary partition (1-4)pPartition number (1-4): 1First cylinder (1-130, default 1): Using default value 1Last cylinder, +cylinders or +size{K,M,G} (1-130, default 130): Using default value 130Command (m for help): tSelected partition 1Hex code (type L to list codes): 8eChanged system type of partition 1 to 8e (Linux LVM)Command (m for help): wThe partition table has been altered!Calling ioctl() to re-read partition table.Syncing disks.

    (4).建立lvm

[root@node0 host2]# pvcreate /dev/sdb1  Physical volume "/dev/sdb1" successfully created[root@node0 host2]# partprobeWarning: WARNING: the kernel failed to re-read the partition table on /dev/sda (Device or resource busy).  As a result, it may not reflect all of your changes until after reboot.[root@node0 host2]# pvdisplay  "/dev/sdb1" is a new physical volume of "1019.72 MiB"  --- NEW Physical volume ---  PV Name               /dev/sdb1  VG Name                 PV Size               1019.72 MiB  Allocatable           NO  PE Size               0     Total PE              0  Free PE               0  Allocated PE          0  PV UUID               dWj8Zh-V5X8-m9wc-tnnp-txIC-VqQq-jX2aRG   [root@node0 host2]# vgscan  Reading all physical volumes.  This may take a while...  No volume groups found[root@node0 host2]# vgcreate pgdata /dev/sdb1  Volume group "pgdata" successfully created[root@node0 host2]# vgdisplay  --- Volume group ---  VG Name               pgdata  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               1016.00 MiB  PE Size               4.00 MiB  Total PE              254  Alloc PE / Size       0 / 0     Free  PE / Size       254 / 1016.00 MiB  VG UUID               gYuSRU-nm7P-mnLq-2cC0-CbSG-mAXS-9CzfDS   [root@node0 host2]# lvcreate -L 500M -n lvdata pgdata  Logical volume "lvdata" created[root@node0 host2]# lvdisplay  --- Logical volume ---  LV Path                /dev/pgdata/lvdata  LV Name                lvdata  VG Name                pgdata  LV UUID                tcseQe-JSS8-P280-M46S-pBTN-tGuU-Wkl4Z5  LV Write Access        read/write  LV Creation host, time node0, 2015-12-27 06:56:46 -0800  LV Status              available  # open                 0  LV Size                500.00 MiB  Current LE             125  Segments               1  Allocation             inherit  Read ahead sectors     auto  - currently set to     256  Block device           253:0   [root@node0 host2]# mkfs -t ext4 /dev/pgdata/lvdatamke2fs 1.41.12 (17-May-2010)Filesystem label=OS type: LinuxBlock size=1024 (log=0)Fragment size=1024 (log=0)Stride=0 blocks, Stripe width=0 blocks128016 inodes, 512000 blocks25600 blocks (5.00%) reserved for the super userFirst data block=1Maximum filesystem blocks=6763315263 block groups8192 blocks per group, 8192 fragments per group2032 inodes per groupSuperblock backups stored on blocks: 	8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409Writing inode tables: done                            Creating journal (8192 blocks): doneWriting superblocks and filesystem accounting information: doneThis filesystem will be automatically checked every 23 mounts or180 days, whichever comes first.  Use tune2fs -c or -i to override. 

[root@node0 ha]# pwd/home/ha[root@node0 ha]# mkdir data[root@node0 ha]# mount /dev/pgdata/lvdata data/[root@node0 ha]# df -hFilesystem            Size  Used Avail Use% Mounted on/dev/sda2              18G  3.7G   13G  22% /tmpfs                 491M  224K  491M   1% /dev/shm/dev/sda1             291M   33M  243M  12% /boot/dev/mapper/pgdata-lvdata                      485M   11M  449M   3% /home/ha/data

    (6).建立远程映射

[root@node0 ha]# rpm -qa | grep nfsnfs-utils-1.2.3-64.el6.x86_64nfs-utils-lib-devel-1.1.5-11.el6.x86_64nfs4-acl-tools-0.3.3-7.el6.x86_64nfs-utils-lib-1.1.5-11.el6.x86_64[root@node0 ha]# rpm -qa | grep rpcbindrpcbind-0.2.0-11.el6.x86_64[root@node0 ha]# cat /etc/exports /home/ha/data/ 192.168.238.0/24(rw,no_root_squash,no_all_squash,sync)[root@node0 ha]# /etc/init.d/rpcbind statusrpcbind (pid  1802) is running...[root@node0 ha]# /etc/init.d/nfs statusrpc.svcgssd is stoppedrpc.mountd is stoppednfsd is stoppedrpc.rquotad is stopped[root@node0 ha]# /etc/init.d/nfs startStarting NFS services:                                     [  OK  ]Starting NFS quotas:                                       [  OK  ]Starting NFS mountd:                                       [  OK  ]Starting NFS daemon:                                       [  OK  ]Starting RPC idmapd:                                       [  OK  ][root@node0 ha]#

[root@localhost ~]# cd /home/ha/[root@localhost ha]# mkdir data[root@localhost ha]# mount -t nfs 192.168.238.129:/home/ha/data/ data/[root@localhost ha]# df -hFilesystem            Size  Used Avail Use% Mounted on/dev/sda2              18G  3.5G   14G  21% /tmpfs                 491M  232K  491M   1% /dev/shm/dev/sda1             291M   33M  243M  12% /boot192.168.238.129:/home/ha/data/                      485M   11M  449M   3% /home/ha/data[root@localhost ha]#

    (7).添加一个2G硬盘后初始化，同(3)。

[root@node0 ha]# pvcreate /dev/sdc1   Physical volume "/dev/sdc1" successfully created[root@node0 ha]# pvdisplay  --- Physical volume ---  PV Name               /dev/sdb1  VG Name               pgdata  PV Size               1019.72 MiB / not usable 3.72 MiB  Allocatable           yes   PE Size               4.00 MiB  Total PE              254  Free PE               129  Allocated PE          125  PV UUID               dWj8Zh-V5X8-m9wc-tnnp-txIC-VqQq-jX2aRG     "/dev/sdc1" is a new physical volume of "2.00 GiB"  --- NEW Physical volume ---  PV Name               /dev/sdc1  VG Name                 PV Size               2.00 GiB  Allocatable           NO  PE Size               0     Total PE              0  Free PE               0  Allocated PE          0  PV UUID               WCO5zU-ExbX-1thO-E1to-N9tJ-Hpmu-kytdTQ   [root@node0 ha]# vgdisplay  --- Volume group ---  VG Name               pgdata  System ID               Format                lvm2  Metadata Areas        1  Metadata Sequence No  2  VG Access             read/write  VG Status             resizable  MAX LV                0  Cur LV                1  Open LV               1  Max PV                0  Cur PV                1  Act PV                1  VG Size               1016.00 MiB  PE Size               4.00 MiB  Total PE              254  Alloc PE / Size       125 / 500.00 MiB  Free  PE / Size       129 / 516.00 MiB  VG UUID               gYuSRU-nm7P-mnLq-2cC0-CbSG-mAXS-9CzfDS   [root@node0 ha]# vgextend pgdata /dev/sdc1   Volume group "pgdata" successfully extended[root@node0 ha]# vgdisplay  --- Volume group ---  VG Name               pgdata  System ID               Format                lvm2  Metadata Areas        2  Metadata Sequence No  3  VG Access             read/write  VG Status             resizable  MAX LV                0  Cur LV                1  Open LV               1  Max PV                0  Cur PV                2  Act PV                2  VG Size               2.99 GiB  PE Size               4.00 MiB  Total PE              765  Alloc PE / Size       125 / 500.00 MiB  Free  PE / Size       640 / 2.50 GiB  VG UUID               gYuSRU-nm7P-mnLq-2cC0-CbSG-mAXS-9CzfDS   [root@node0 ha]# lvdisplay  --- Logical volume ---  LV Path                /dev/pgdata/lvdata  LV Name                lvdata  VG Name                pgdata  LV UUID                tcseQe-JSS8-P280-M46S-pBTN-tGuU-Wkl4Z5  LV Write Access        read/write  LV Creation host, time node0, 2015-12-27 06:56:46 -0800  LV Status              available  # open                 1  LV Size                500.00 MiB  Current LE             125  Segments               1  Allocation             inherit  Read ahead sectors     auto  - currently set to     256  Block device           253:0   [root@node0 ha]# lvextend -L 2.2G /dev/pgdata/lvdata  Rounding size to boundary between physical extents: 2.20 GiB  Extending logical volume lvdata to 2.20 GiB  Logical volume lvdata successfully resized[root@node0 ha]# resize2fs /dev/pgdata/lvdataresize2fs 1.41.12 (17-May-2010)Filesystem at /dev/pgdata/lvdata is mounted on /home/ha/data; on-line resizing requiredold desc_blocks = 2, new_desc_blocks = 9Performing an on-line resize of /dev/pgdata/lvdata to 2310144 (1k) blocks.The filesystem on /dev/pgdata/lvdata is now 2310144 blocks long.[root@node0 ha]# 

    (9).验证

[root@node0 ha]# df -hFilesystem            Size  Used Avail Use% Mounted on/dev/sda2              18G  3.7G   13G  22% /tmpfs                 491M  224K  491M   1% /dev/shm/dev/sda1             291M   33M  243M  12% /boot/dev/mapper/pgdata-lvdata                      2.2G   11M  2.1G   1% /home/ha/data[root@node0 ha]#