大資料移轉之DRBD擴容

標籤：大資料移轉之drbd擴容

擴容主/備物理資料盤：

[[email protected] ~]# drbdadm down data

[[email protected] ~]# mount /dev/sdb1 /mnt/

[[email protected] ~]# df -h

Filesystem      Size  Used Avail Use% Mounted on

/dev/sda3       7.2G  1.9G  5.0G  28% /

tmpfs           242M     0  242M   0% /dev/shm

/dev/sda1       194M   57M  128M  31% /boot

/dev/sdb1       380M   11M  350M   3% /mnt    # 可以看到備節點磁碟利用率只有380M

[[email protected] ~]# parted /dev/sdb p

Model: Msft Virtual Disk (scsi)

Disk /dev/sdb: 2147MB

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

Partition Table: msdos

 

Number  Start   End    Size   Type     File system  Flags

 1      32.3kB  814MB  814MB  primary  ext4    # 然而備節點真實大小為814M

 2      814MB   979MB  165MB  primary

[[email protected] ~]# umount /mnt/

[[email protected] ~]# e2fsck -f /dev/sdb1     # 查看分區大小

e2fsck 1.41.12 (17-May-2010)

Pass 1: Checking inodes, blocks, and sizes

Pass 2: Checking directory structure

Pass 3: Checking directory connectivity

Pass 4: Checking reference counts

Pass 5: Checking group summary information

/dev/sdb1: 38/100744 files (0.0% non-contiguous), 22971/401409 blocks

[[email protected] ~]# resize2fs /dev/sdb1    # 重新分配分區（擴容）

resize2fs 1.41.12 (17-May-2010)

Resizing the filesystem on /dev/sdb1 to 795184 (1k) blocks.

The filesystem on /dev/sdb1 is now 795184 blocks long.

 

[[email protected] ~]# mount /dev/sdb1 /mnt/

[[email protected] ~]# df -h

Filesystem      Size  Used Avail Use% Mounted on

/dev/sda3       7.2G  1.9G  5.0G  28% /

tmpfs           242M     0  242M   0% /dev/shm

/dev/sda1       194M   57M  128M  31% /boot

/dev/sdb1       752M   11M  703M   2% /mnt    # 備節點磁碟空間已增加至最大

[[email protected] ~]# ls /mnt/

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大資料移轉之DRBD擴容