Information similar to the following is displayed:
[root@ecs-test-0001 ~]# fdisk -l
+- fdisk -l
Information similar to the following is displayed:
[root@ecs-test-0001 ~]# fdisk -l
Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 sectors
Units = sectors of 1 * 512 = 512 bytes
@@ -43,7 +43,7 @@ Building a new DOS disklabel with disk identifier 0x38717fc1.
Command (m for help):
- Enter n and press Enter to create a new partition.
Information similar to the following is displayed:
Command (m for help): n
+
- Enter n and press Enter to create a new partition.
Information similar to the following is displayed:
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
@@ -66,8 +66,8 @@ First sector (2048-209715199, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-209715199, default 209715199):
Last sector indicates the end sector. The value ranges from 2048 to 209715199, and the default value is 209715199.
- - Select the default end sector 209715199 and press Enter.
The system displays the start and end sectors of the partition's available space. You can customize the value within this range or use the default value. The start sector must be smaller than the partition's end sector.
+Last sector indicates the end sector. The value ranges from 2048 to 209715199, and the default value is 209715199.
+ - Select the default end sector 209715199 and press Enter.
The system displays the start and end sectors of the partition's available space. You can customize the value within this range or use the default value. The start sector must be smaller than the partition's end sector.
Information similar to the following is displayed:
Last sector, +sectors or +size{K,M,G} (2048-209715199, default 209715199):
Using default value 209715199
@@ -132,6 +132,8 @@ Writing superblocks and filesystem accounting information: done
- Run the following command to create a mount point:
mkdir Mount point
In this example, run the following command to create the /mnt/sdc mount point:
mkdir /mnt/sdc
+
The /mnt directory exists on all Linux systems. If the mount point fails to create, it may be that the /mnt directory has been accidentally deleted. Run the mkdir -p /mnt/sdc command to create the mount point.
+
- Run the following command to mount the new partition on the created mount point:
mount Disk partition Mount point
In this example, run the following command to mount the new partition /dev/vdb1 on /mnt/sdc:
mount /dev/vdb1 /mnt/sdc
@@ -161,8 +163,8 @@ tmpfs tmpfs 398M 0 398M 0% /run/user/0
[root@ecs-test-0001 ~]# blkid /dev/vdb1
/dev/vdb1: UUID="0b3040e2-1367-4abb-841d-ddb0b92693df" TYPE="ext4"
The UUID of the /dev/vdb1 partition is displayed.
- - Run the following command to open the fstab file using the vi editor:
vi /etc/fstab
- - Press i to enter the editing mode.
- Move the cursor to the end of the file and press Enter. Then, add the following information:
UUID=0b3040e2-1367-4abb-841d-ddb0b92693df /mnt/sdc ext4 defaults 0 2
+ - Run the following command to open the fstab file using the vi editor:
vi /etc/fstab
+ - Press i to enter editing mode.
- Move the cursor to the end of the file and press Enter. Then, add the following information:
UUID=0b3040e2-1367-4abb-841d-ddb0b92693df /mnt/sdc ext4 defaults 0 2
- Press Esc, enter :wq, and press Enter.
The system saves the configurations and exits the vi editor.
- Perform the following operations to verify the automatic mounting function:
- Run the following command to unmount the partition:
umount Disk partition
In this example, run the following command:
@@ -171,7 +173,7 @@ tmpfs tmpfs 398M 0 398M 0% /run/user/0
- Run the following command to query the file system mounting information:
mount | grep Mount point
In this example, run the following command:
mount | grep /mnt/sdc
-If information similar to the following is displayed, the automatic mounting function takes effect:
+If information similar to the following is displayed, automatic mounting has been configured:
root@ecs-test-0001 ~]# mount | grep /mnt/sdc
/dev/vdb1 on /mnt/sdc type ext4 (rw,relatime,data=ordered)
diff --git a/docs/evs/umn/evs_01_0034.html b/docs/evs/umn/evs_01_0034.html
index 11a37c74..a493a72a 100644
--- a/docs/evs/umn/evs_01_0034.html
+++ b/docs/evs/umn/evs_01_0034.html
@@ -2,13 +2,14 @@
Initializing a Linux Data Disk (parted)
Scenarios
This section uses CentOS 7.4 64bit to describe how to initialize a data disk attached to a server running Linux and use parted to partition the data disk.
-
The maximum disk capacity supported by MBR is 2 TB, and that supported by GPT is 18 EB. Therefore, use the GPT partition style if your disk capacity is larger than 2 TB. In Linux, if you choose to use the GPT partition style, the fdisk partitioning tool cannot be used. Use the parted partitioning tool instead. For details about disk partition styles, see Introduction to Data Disk Initialization Scenarios and Partition Styles.
+
The maximum partition size that MBR supports is 2 TiB and that GPT supports is 18 EiB. If the disk size you need to partition is greater than 2 TiB, partition the disk using GPT.
+
The fdisk partitioning tool is suitable only for MBR partitions, and the parted partitioning tool is suitable for both MBR and GPT partitions. For more information, see Introduction to Data Disk Initialization Scenarios and Partition Styles.
The method for initializing a disk varies depending on the OS running on the server. This document is used for reference only. For the detailed operations and differences, see the product documents of the corresponding OS.
Prerequisites
- A data disk has been attached to a server and has not been initialized.
- You have logged in to the server.
- For how to log in to an ECS, see the Elastic Cloud Server User Guide.
- For how to log in to a BMS, see the Bare Metal Server User Guide.
-
Creating and Mounting a Partition
The following example shows you how a new partition can be created on a new data disk that has been attached to a server. The partition will be created using parted, and GPT is used as the partition style. Furthermore, the partition will be formatted using the ext4 file system, mounted on /mnt/sdc, and configured automatic mounting at system start.
+
Creating and Mounting a Partition
The following example shows you how a new partition can be created on a new data disk that has been attached to a server. The partition will be created using parted, and GPT will be used. Furthermore, the partition will be formatted using the ext4 file system, mounted on /mnt/sdc, and configured with automatic mounting at system start.
- Run the following command to query information about the new data disk:
lsblk
Information similar to the following is displayed:
root@ecs-test-0001 ~]# lsblk
@@ -40,8 +41,8 @@ Disk Flags:
- Run the following command to set the disk partition style:
mklabel Disk partition style
In this example, run the following command to set the partition style to GPT: (Disk partition styles can be MBR or GPT.)
mklabel gpt
-
The maximum disk capacity supported by MBR is 2 TB, and that supported by GPT is 18 EB. Because a data disk currently supports up to 32 TB, use the GPT partition style if your disk capacity is larger than 2 TB.
-
If you change the disk partition style after the disk has been used, the data on the disk will be cleared. Therefore, select a proper disk partition style when initializing the disk.
+
The maximum disk size supported by MBR is 2 TiB, and that supported by GPT is 18 EiB. Because an EVS data disk currently supports up to 32 TiB, use GPT if your disk size is larger than 2 TiB.
+
If the partition style is changed after the disk has been used, data on the disk will be cleared. Therefore, select an appropriate partition style when initializing the disk. If you must change the partition style to GPT after a disk has been used, it is recommended that you back up the disk data before the change.
- Enter p and press Enter to view the disk partition style.
Information similar to the following is displayed:
(parted) mklabel gpt
(parted) p
@@ -120,6 +121,8 @@ Writing superblocks and filesystem accounting information: done
- Run the following command to create a mount point:
mkdir Mount point
In this example, run the following command to create the /mnt/sdc mount point:
mkdir /mnt/sdc
+ The /mnt directory exists on all Linux systems. If the mount point fails to create, it may be that the /mnt directory has been accidentally deleted. Run the mkdir -p /mnt/sdc command to create the mount point.
+
- Run the following command to mount the new partition on the created mount point:
mount Disk partition Mount point
In this example, run the following command to mount the new partition /dev/vdb1 on /mnt/sdc:
mount /dev/vdb1 /mnt/sdc
@@ -149,8 +152,8 @@ tmpfs tmpfs 398M 0 398M 0% /run/user/0
[root@ecs-test-0001 ~]# blkid /dev/vdb1
/dev/vdb1: UUID="0b3040e2-1367-4abb-841d-ddb0b92693df" TYPE="ext4"
The UUID of the /dev/vdb1 partition is displayed.
- - Run the following command to open the fstab file using the vi editor:
vi /etc/fstab
- - Press i to enter the editing mode.
- Move the cursor to the end of the file and press Enter. Then, add the following information:
UUID=0b3040e2-1367-4abb-841d-ddb0b92693df /mnt/sdc ext4 defaults 0 2
+ - Run the following command to open the fstab file using the vi editor:
vi /etc/fstab
+ - Press i to enter editing mode.
- Move the cursor to the end of the file and press Enter. Then, add the following information:
UUID=0b3040e2-1367-4abb-841d-ddb0b92693df /mnt/sdc ext4 defaults 0 2
- Press Esc, enter :wq, and press Enter.
The system saves the configurations and exits the vi editor.
- Perform the following operations to verify the automatic mounting function:
- Run the following command to unmount the partition:
umount Disk partition
In this example, run the following command:
@@ -159,7 +162,7 @@ tmpfs tmpfs 398M 0 398M 0% /run/user/0
- Run the following command to query the file system mounting information:
mount | grep Mount point
In this example, run the following command:
mount | grep /mnt/sdc
-If information similar to the following is displayed, the automatic mounting function takes effect:
+If information similar to the following is displayed, automatic mounting has been configured:
root@ecs-test-0001 ~]# mount | grep /mnt/sdc
/dev/vdb1 on /mnt/sdc type ext4 (rw,relatime,data=ordered)
diff --git a/docs/evs/umn/evs_01_0035.html b/docs/evs/umn/evs_01_0035.html
index 0974fb4b..62367144 100644
--- a/docs/evs/umn/evs_01_0035.html
+++ b/docs/evs/umn/evs_01_0035.html
@@ -61,8 +61,8 @@
