假如您在建設(shè)實例時選擇了數(shù)據(jù)盤,在登錄實例后,系統(tǒng)需要先名目化數(shù)據(jù)盤,然后掛載數(shù)據(jù)盤。
別的,您還可以按照業(yè)務(wù)需要,對數(shù)據(jù)盤舉辦多分區(qū)設(shè)置。發(fā)起利用系統(tǒng)自帶的東西舉辦分區(qū)操縱。
留意:云處事器 ECS 僅支持對 數(shù)據(jù)盤 舉辦二次分區(qū),而不支持對 系統(tǒng)盤 舉辦二次分區(qū)(不管是 Windows 照舊 Linux 系統(tǒng))。假如您強(qiáng)行利用第三方東西對系統(tǒng)盤舉辦二次分區(qū)操縱,大概激發(fā)未知風(fēng)險,如系統(tǒng)瓦解、數(shù)據(jù)丟失等。
本操縱合用于 非 I/O 優(yōu)化+SSD云盤 Linux (Redhat、CentOS、Debian、Ubuntu)實例。對付 I/O 優(yōu)化實例+SSD云盤數(shù)據(jù)盤分區(qū)掛載,發(fā)起利用 劇本東西:auto_fdisk_ssd.sh
利用長途毗連東西,輸入用戶名 root 和暗碼登錄到實例。
運行 fdisk -l 呼吁查察數(shù)據(jù)盤。留意:在沒有分區(qū)和名目化數(shù)據(jù)盤之前,利用 df
-h 呼吁是無法看到數(shù)據(jù)盤的。在下面的示例中,有一個 5 GB 的數(shù)據(jù)盤需要掛載。
假如執(zhí)行了 fdisk -l 呼吁后,沒有發(fā)明
/dev/xvdb,則暗示您的實例沒有數(shù)據(jù)盤,因此無需掛載。可以忽略這一章。
[[email protected] ~]# fdisk -l
Disk /dev/xvda: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 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: 0x00078f9c
Device Boot Start End Blocks Id System
/dev/xvda1 * 1 5222 41940992 83 Linux
Disk /dev/xvdb: 5368 MB, 5368709120 bytes
255 heads, 63 sectors/track, 652 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
執(zhí)行下列呼吁,對數(shù)據(jù)盤舉辦分區(qū)。
fdisk /dev/xvdb
按照提示,依次輸入 n,p,1,兩次回車,wq,分區(qū)就開始了。
[[email protected] ~]# fdisk /dev/xvdb
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklab el
Building a new DOS disklabel with disk identifier 0x33eb5059.
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): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-652, default 1):
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-652, default 652):
Using default value 652
Command (m for help): wq
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.