1. 使用命令parted -l 查看当前分区
可以看到硬盘有2396GB即有2.5T , 但是分区就分了50G一个盘, 需要分剩下部分
[root@localhost ~]# parted -l Model: IBM ServeRAID M5210 (scsi) Disk /dev/sda: 2396GB Sector size (logical/physical): 512B/512B Partition Table: gpt Disk Flags: pmbr_boot Number Start End Size File system Name Flags 1 1049kB 2097kB 1049kB bios_grub 2 2097kB 526MB 524MB xfs 3 526MB 56.4GB 55.8GB lvm Model: Linux device-mapper (linear) (dm) Disk /dev/mapper/centos-swap: 2143MB Sector size (logical/physical): 512B/512B Partition Table: loop Disk Flags: Number Start End Size File system Flags 1 0.00B 2143MB 2143MB linux-swap(v1) Model: Linux device-mapper (linear) (dm) Disk /dev/mapper/centos-root: 53.7GB Sector size (logical/physical): 512B/512B Partition Table: loop Disk Flags: Number Start End Size File system Flags 1 0.00B 53.7GB 53.7GB xfs
2.直接进去parted
[root@localhost ~]# parted /dev/sda
3.使用mkpart进行分区
(parted) mkpart xfs 56.4GB 50% (parted) mkpart xfs 50% 100% (parted) print Model: IBM ServeRAID M5210 (scsi) Disk /dev/sda: 2396GB Sector size (logical/physical): 512B/512B Partition Table: gpt Disk Flags: pmbr_boot Number Start End Size File system Name Flags 1 1049kB 2097kB 1049kB bios_grub 2 2097kB 526MB 524MB xfs 3 526MB 56.4GB 55.8GB lvm 4 56.4GB 1198GB 1142GB xfs 5 1198GB 2396GB 1198GB xfs
可以看到下面分了2个分区 , 都有1.1T
4.退出parted
(parted) quit Information: You may need to update /etc/fstab.
提示你需要更新分区表
5.对分区进行格式化
现在分区还没格式化,而且也没挂载,看不见,我们可以用blkid来查看
[root@localhost ~]# blkid /dev/sda1: PARTUUID="a89cb88b-8c37-4f4b-ac63-20e6fc134e6f" /dev/sda2: UUID="5918f242-30d5-4d9d-a68c-669005b59e9b" TYPE="xfs" PARTUUID="540d4b40-2a86-4f0e-bf35-478383e18040" /dev/sda3: UUID="uMUriJ-GfeV-l2a4-cjW2-YRKN-Si8a-crFttV" TYPE="LVM2_member" PARTUUID="8338343a-953d-4afc-8980-217cbc4f91b0" /dev/sda4: PARTLABEL="xfs" PARTUUID="1eb7a686-bb83-4687-ab2f-4d81b3bba646" /dev/sda5: PARTLABEL="xfs" PARTUUID="aae90423-b656-4c5b-baca-692a493f9822" /dev/mapper/centos-root: UUID="1c34892c-0c18-4056-b93a-919db8d706eb" TYPE="xfs" /dev/mapper/centos-swap: UUID="b7f51dbc-cbd6-433a-beda-fa4018931e17" TYPE="swap"
明显看到 /dev/sda4 /dev/sda5 这2个就是我们新分的分区
使用mkfs对2个分区进行格式化
[root@localhost ~]# mkfs -t xfs /dev/sda4
meta-data=/dev/sda4 isize=256 agcount=4, agsize=69679936 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=278719744, imaxpct=5
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=136093, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@localhost ~]# mkfs -t xfs /dev/sda5
meta-data=/dev/sda5 isize=256 agcount=4, agsize=73119936 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=292479744, imaxpct=5
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=142812, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
6.挂载分区
写入分区表中
暂定我们挂载目录为 :
/dev/sda4 我们挂载到目录 /u01
/dev/sda5 我们挂载到目录 /u02
[root@localhost ~]# more /etc/fstab # # /etc/fstab # Created by anaconda on Tue Aug 20 21:05:33 2019 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # /dev/mapper/centos-root / xfs defaults 0 0 UUID=5918f242-30d5-4d9d-a68c-669005b59e9b /boot xfs defaults 0 0 /dev/mapper/centos-swap swap swap defaults 0 0 /dev/sda4 /u01 xfs default 0 0 /dev/sda5 /u02 xfs default 0 0
创建目录并手工挂载
[root@localhost ~]# mkdir /u01 [root@localhost ~]# mkdir /u02 [root@localhost ~]# mount /dev/sda4 /u01 [root@localhost ~]# mount /dev/sda5 /u02
6.分区完成
[root@localhost ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/centos-root 50G 1.5G 49G 3% / devtmpfs 32G 0 32G 0% /dev tmpfs 32G 0 32G 0% /dev/shm tmpfs 32G 25M 32G 1% /run tmpfs 32G 0 32G 0% /sys/fs/cgroup /dev/sda2 497M 123M 375M 25% /boot tmpfs 6.3G 0 6.3G 0% /run/user/0 /dev/sda4 1.1T 33M 1.1T 1% /u01 /dev/sda5 1.1T 33M 1.1T 1% /u02
可以看到分区已经挂载完成了