AWS 磁碟 線上擴容(SSD 磁碟)
阿新 • • 發佈:2020-11-24
AWS 磁碟 線上擴容(SSD 磁碟)
- 安裝擴容工具
# growpart 為分割槽表修改工具 curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo yum search growpart yum install cloud-utils-growpart
1.SSD 磁碟擴容
- 操作命令:
# 檢視磁碟狀態
df -h
lsblk
# 修改分割槽表
growpart /dev/xvdb 1
# 檢查分割槽表資訊
df -h
lsblk
# 擴容磁碟
resize2fs /dev/xvdb1
df -h
- 例項演示:
# 擴容前檢查磁碟分割槽資訊 ----------------- root@zuiyoujie:/opt/tools# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT xvda 202:0 0 50G 0 disk └─xvda1 202:1 0 8G 0 part / # 檢查磁碟塊資訊 xvdb 202:16 0 15.3G 0 disk /mnt xvdc 202:32 0 15.3G 0 disk root@zuiyoujie:/opt/tools# file -s /dev/xvda /dev/xvda: x86 boot sector root@zuiyoujie:/opt/tools# df -h Filesystem Size Used Avail Use% Mounted on /dev/xvda1 7.8G 3.6G 3.9G 49% / # 檢查磁碟分割槽資訊 none 4.0K 0 4.0K 0% /sys/fs/cgroup udev 1.9G 12K 1.9G 1% /dev tmpfs 377M 352K 377M 1% /run none 5.0M 0 5.0M 0% /run/lock none 1.9G 0 1.9G 0% /run/shm none 100M 0 100M 0% /run/user /dev/xvdb 15G 39M 15G 1% /mnt # 擴容分割槽並檢查磁碟資訊 root@zuiyoujie:/opt/tools# growpart /dev/xvda 1 CHANGED: partition=1 start=16065 old: size=16755795 end=16771860 new: size=104840190,end=104856255 root@zuiyoujie:/opt/tools# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT xvda 202:0 0 50G 0 disk └─xvda1 202:1 0 50G 0 part / # 磁碟分割槽生效 xvdb 202:16 0 15.3G 0 disk /mnt xvdc 202:32 0 15.3G 0 disk root@zuiyoujie:/opt/tools# df -h Filesystem Size Used Avail Use% Mounted on /dev/xvda1 7.8G 3.6G 3.9G 49% / # 修改分割槽表,容量還未生效 none 4.0K 0 4.0K 0% /sys/fs/cgroup udev 1.9G 12K 1.9G 1% /dev tmpfs 377M 352K 377M 1% /run none 5.0M 0 5.0M 0% /run/lock none 1.9G 0 1.9G 0% /run/shm none 100M 0 100M 0% /run/user /dev/xvdb 15G 39M 15G 1% /mnt # 擴容磁碟分割槽並檢查分割槽資訊 root@zuiyoujie:/opt/tools# resize2fs /dev/xvda1 resize2fs 1.42.9 (4-Feb-2014) Filesystem at /dev/xvda1 is mounted on /; on-line resizing required old_desc_blocks = 1, new_desc_blocks = 4 The filesystem on /dev/xvda1 is now 13105023 blocks long. root@zuiyoujie:/opt/tools# df -h Filesystem Size Used Avail Use% Mounted on /dev/xvda1 50G 3.6G 44G 8% / # 擴容完畢,容量生效 none 4.0K 0 4.0K 0% /sys/fs/cgroup udev 1.9G 12K 1.9G 1% /dev tmpfs 377M 352K 377M 1% /run none 5.0M 0 5.0M 0% /run/lock none 1.9G 0 1.9G 0% /run/shm none 100M 0 100M 0% /run/user /dev/xvdb 15G 39M 15G 1% /mnt ---------------------------
參考連結:
- 擴展卷之後擴容檔案系統(分割槽)容量