Nodo1
Configure su sistema para usar el repositorio predeterminado
配置您 的系统以使用默认存储库
YUM 存储库已可以从 http://foundation0.ilt.example.com/dvd/BaseOS 和 `http://foundation0.ilt.example.com/dvd/AppStream 使用配置您的系统，以将这些位置用作默认存储库
[root@clear ~]# cat /etc/yum.repos.d/BaseOS_AppStream.repo
[BaseOS]
name=BaseOS
baseurl=http://foundation0.ilt.example.com/dvd/BaseOS
gpgcheck=0
enabled=1
[AppStream]
name=AppStream
baseurl=http://foundation0.ilt.example.com/dvd/AppStream
gpgcheck=0
enabled=1
Crear cuenta de usuario
创建用户帐户
创建下列用户、组和组成员资格：
名为 sysmgrs 的组
用户 natasha ，作为次要组从属于 sysmgrs
用户 harry ，作为次要组还从属于 sysmgrs
用户 sarah ，无权访问系统上的交互式 shell 且不是 sysmgrs 的成员
natasha 、 harry 和 sarah 的密码应当都是 flectrag
[root@clear ~]# groupadd sysmgrs
[root@clear ~]# useradd -G sysmgrs natasha
[root@clear ~]# useradd -G sysmgrs harry
[root@clear ~]# useradd -s /bin/false sarah
[root@clear ~]# echo flectrag | passwd --stdin natasha
Changing password for user natasha.
passwd: all authentication tokens updated successfully.
[root@clear ~]# echo flectrag | passwd --stdin harry
Changing password for user harry.
passwd: all authentication tokens updated successfully.
[root@clear ~]# echo flectrag | passwd --stdin sarah
Changing password for user sarah.
passwd: all authentication tokens updated successfully.
Configurar trabajos cron
配置 cron 作业
配置 cron 作业，该作业每隔 2 分钟运行并执行以下命令：
logger "EX200 in progress"，以用户 natasha 身份运行
#查看服务状态crond
[root@clear ~]# systemctl status crond | grep Active
Active: active (running) since Wed 2023-08-30 15:12:01 EDT; 24min ago
[root@clear ~]# systemctl enable crond
[root@clear ~]# crontab -e -u natasha
no crontab for natasha - using an empty one
crontab: installing new crontab
[root@clear ~]# crontab -l -u natasha
*/2 * * * * logger "EX200 in progress"
Crear un directorio de colaboración
创建具有以下特征的协作目录 /home/managers ：
/home/managers 的组用权是 sysmgrs
目录应当可被 sysmgrs 的成员读取、写入和访问，但任何其他用户不具这些权限。（当然，root 用户有权访问系统上的所有文件和目录）
/home/managers 中创建的文件自动将组所有权设置到 sysmgrs 组
[root@clear ~]# mkdir /home/managers
[root@clear ~]# chown :sysmgrs /home/managers
[root@clear ~]# chmod 2770 /home/managers
Configurar NTP
配置 NTP
配置您的系统，使其成为 materials.example.com 的 NTP 客户端。（注：materials.example.com 是 classroom.example.com 的 DNS 别名）
[root@clear ~]# systemctl status chronyd | grep Active
Active: active (running) since Wed 2023-08-30 15:10:30 EDT; 44min ago
[root@clear ~]# vim /etc/chrony.conf
#添加下面这段
[root@clear ~]# cat /etc/chrony.conf | grep materials
server materials.example.com iburst
[root@clear ~]# systemctl restart chronyd
[root@clear ~]# timedatectl
Local time: Wed 2023-08-30 15:56:35 EDT
Universal time: Wed 2023-08-30 19:56:35 UTC
RTC time: Wed 2023-08-30 19:51:45
Time zone: America/New_York (EDT, -0400)
System clock synchronized: yes
NTP service: active
RTC in local TZ: no
Configurar autofs
配置 autofs
配置 autofs ，以按照如下所述自动挂载远程用户的主目录：
materials.example.com ( 172.25.254.254 ) NFS 导出 /rhome 到您的系统。此文件系统包含为用户 remoteuser1 预配置的主目录
remoteuser1 的主目录是 materials.example.com:/rhome/remoteuser1
remoteuser1 的主目录应自动挂载到本地 /rhome 下的 /rhome/remoteuser1
主目录必须可供其用户写入
remoteuser1 的密码是 flectrag
[root@clear ~]# yum -y install autofs
[root@clear ~]# vim /etc/auto.master
auto.master auto.master.d/
[root@clear ~]# vim /etc/auto.master
#设置自动挂载
[root@clear ~]# cat /etc/auto.master | grep rhome
/rhome /etc/auto.rhome
[root@clear ~]# vim /etc/auto.rhome
#设置权限
[root@clear ~]# cat /etc/auto.rhome
remoteuser1 -rw materials.example.com:/rhome/remoteuser1
[root@clear ~]# systemctl enable --now autofs
Created symlink /etc/systemd/system/multi-user.target.wants/autofs.service → /usr/lib/systemd/system/autofs.service.
[root@clear ~]# systemctl restart autofs
[root@clear ~]# echo flectrag | passwd --stdin remoteuser1
Changing password for user remoteuser1.
passwd: all authentication tokens updated successfully.
[root@clear ~]# su - remoteuser1
[remoteuser1@clear ~]$ pwd
/rhome/remoteuser1
[remoteuser1@clear ~]$ exit
logout
Configurar permisos /var/tmp/fstab
配置 /var/tmp/fstab 权限
将文件 /etc/fstab 复制到 /var/tmp/fstab 。配置 /var/tmp/fstab 的权限以满足如下条件：
文件 /var/tmp/fstab 自 root 用户所有
文件 /var/tmp/fstab 属于组 root
文件 /var/tmp/fstab 应不能被任何人执行
用户 natasha 能够读取和写入 /var/tmp/fstab
用户 harry 无法写入或读取 /var/tmp/fstab
所有其他用户（当前或未来）能够读取 /var/tmp/fstab
[root@clear ~]# cp /etc/fstab /var/tmp/fstab
[root@clear ~]# ll /var/tmp/fstab
[root@clear ~]# setfacl -m u:natasha:rw /var/tmp/fstab
[root@clear ~]# setfacl -m u:harry:- /var/tmp/fstab
[root@clear ~]# getfacl /var/tmp/fstab
getfacl: Removing leading '/' from absolute path names
# file: var/tmp/fstab
# owner: root
# group: root
user::rw-
user:natasha:rw-
user:harry:---
group::r--
mask::rw-
other::r--
Configurar cuentas de usuario
配置用户帐号
配置用户 manalo ，其用户 ID 为 3533。此用户的密码应当为 flectrag。
[root@clear ~]# useradd -u 3533 manalo
[root@clear ~]# echo flectrag | passwd --stdin manalo
Changing password for user manalo.
passwd: all authentication tokens updated successfully.
[root@clear ~]# tail -1 /etc/passwd
manalo:x:3533:3533::/home/manalo:/bin/bash
encontrar archivos
查找文件
查找当 jacques 所有的所有文件并将其副本放入 /root/findfiles 目录
[root@clear ~]# mkdir /root/findfiles
[root@clear ~]# find / -user jacques -exec cp -a {} /root/findfiles \;
find: ‘/proc/25337/task/25337/fd/6’: No such file or directory
find: ‘/proc/25337/task/25337/fdinfo/6’: No such file or directory
find: ‘/proc/25337/fd/7’: No such file or directory
find: ‘/proc/25337/fdinfo/7’: No such file or directory
[root@clear ~]# ll /root/findfiles/
total 0
-rw-r--r--. 1 jacques jacques 0 Aug 30 16:23 gamelan
-rw-r--r--. 1 jacques jacques 0 Aug 30 16:23 jacques
-rw-r--r--. 1 jacques jacques 0 Aug 30 16:23 libWedgeit.so.1.2.3
encontrar cadena
查找字符串
查找文件 /usr/share/xml/iso-codes/iso_639_3.xml 中包含字符串 ng 的所有行。将所有这些行的副本按原始顺序放在文件 /root/list 中。 /root/list 不得包含空行，且所有行必须是 /usr/share/xml/iso-codes/iso_639_3.xml 中原始行的确切副本。
[root@clear ~]# grep ng /usr/share/xml/iso-codes/iso_639_3.xml > /root/list
Crear archivo
创建存档
创建一个名为 /root/backup.tar.gz 的 tar 存档，其应包含 /usr/local 的 tar 存档，其应包含 /usr/local 的内容。该 tar 存档必须使用 gzip 进行压缩。
[root@clear ~]# tar -czvf /root/backup.tar.gz /usr/local
[root@clear ~]# file /root/backup.tar.gz
/root/backup.tar.gz: gzip compressed data, last modified: Wed Aug 30 20:30:16 2023, from Unix, original size 51200
Agregar operación sin contraseña
Permitir que sysmgrslos miembros del grupo hagan sudo sin contraseña
visudo #进⼊编辑sudo
在110⾏下编写或者是在 #%wheel下编写
%sysmgrs ALL=(ALL) NOPASSWD: ALL
Configurar la política de contraseñas para crear nuevos usuarios.
Al crear un nuevo usuario, la política de contraseña predeterminada caducará después de 20 días.
[root@clear ~]# cat /etc/login.defs | grep PASS_MAX_DAYS
# PASS_MAX_DAYS Maximum number of days a password may be used.
PASS_MAX_DAYS 20
[root@clear ~]# useradd usr1
[root@clear ~]# chage usr1
Changing the aging information for usr1
Enter the new value, or press ENTER for the default
Minimum Password Age [0]: ^X
chage: error changing fields
[root@clear ~]# chage usr1
Changing the aging information for usr1
Enter the new value, or press ENTER for the default
Minimum Password Age [0]:
Maximum Password Age [20]:
Last Password Change (YYYY-MM-DD) [2023-08-30]:
Password Expiration Warning [7]:
Password Inactive [-1]:
Account Expiration Date (YYYY-MM-DD) [-1]:
Nodo2
Establecer contraseña de root
设置 root 密码
将 node2 的 root 密码设置为 flectrag 。您需要获得系统访问权限才能进行此操作。
Configure su sistema para usar el repositorio predeterminado
配置您 的系统以使用默认存储库
YUM 存储库已可以从 http://foundation0.ilt.example.com/dvd/BaseOS 和 http://foundation0.ilt.example.com/dvd/AppStream 使用配置您的系统，以将这些位置用作默认存储库
-
Lo mismo que el archivo de almacenamiento del nodo1, cópielo
[root@clear ~]# scp /etc/yum.repos.d/BaseOS_AppStream.repo node2:/etc/yum.repos.d/ The authenticity of host 'node2 (172.25.250.200)' can't be established. ECDSA key fingerprint is SHA256:1H687jfusVXYAUzAuByFfx1U/lB4VS+6h04wRhXhmZU. Are you sure you want to continue connecting (yes/no/[fingerprint])? yes Warning: Permanently added 'node2,172.25.250.200' (ECDSA) to the list of known hosts. root@node2's password: BaseOS_AppStream.repo 100% 203 15.1KB/s 00:00 -
Ver en el nodo 2
[root@node2 ~]# ls /etc/yum.repos.d/ BaseOS_AppStream.repo [root@node2 ~]# yum repolist repo id repo name AppStream AppStream BaseOS BaseOS
Cambiar el tamaño del volumen lógico
设置逻辑卷大小
将逻辑卷 vo 及其文件系统的大小调整到 230 MiB。确保文件系统内容保持不变。注：分区大小很少与请求的大小完全相同，因此可以接受范围为 217 MiB 到 243 MiB 的大小。
#查看文件格式和存储大小
[root@node2 ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
devtmpfs devtmpfs 887M 0 887M 0% /dev
tmpfs tmpfs 914M 0 914M 0% /dev/shm
tmpfs tmpfs 914M 17M 897M 2% /run
tmpfs tmpfs 914M 0 914M 0% /sys/fs/cgroup
/dev/vda3 xfs 9.9G 1.6G 8.4G 16% /
/dev/vda2 vfat 100M 6.8M 94M 7% /boot/efi
/dev/mapper/myvol-vo ext4 175M 1.6M 160M 1% /reports
tmpfs tmpfs 183M 0 183M 0% /run/user/0
#查看myvol组
[root@node2 ~]# vgs myvol
VG #PV #LV #SN Attr VSize VFree
myvol 1 1 0 wz--n- 508.00m 324.00m
#拓展
[root@node2 ~]# lvextend -L 230M /dev/myvol/vo
Rounding size to boundary between physical extents: 232.00 MiB.
Size of logical volume myvol/vo changed from 184.00 MiB (46 extents) to 232.00 MiB (58 extents).
Logical volume myvol/vo successfully resized.
#同步信息到系统内核
[root@node2 ~]# resize2fs /dev/myvol/vo
resize2fs 1.45.4 (23-Sep-2019)
Filesystem at /dev/myvol/vo is mounted on /reports; on-line resizing required
old_desc_blocks = 2, new_desc_blocks = 2
The filesystem on /dev/myvol/vo is now 237568 (1k) blocks long.
[root@node2 ~]# df -Th /reports/
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/myvol-vo ext4 221M 2.1M 204M 1% /reports
Agregar partición de intercambio
添加交换分区
向您的系统添加一个额外的交换分区 756MiB 。交换分区应在系统启动时自动挂载。不要删除或以任何方式改动系统上的任何现有交换分区。
#查看磁盘情况
[root@node2 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE M
OUNTPOINT
vda 252:0 0 10G 0 disk
├─vda1 252:1 0 1M 0 part
├─vda2 252:2 0 100M 0 part /boot/efi
└─vda3 252:3 0 9.9G 0 part /
vdb 252:16 0 4G 0 disk
├─vdb1 252:17 0 510M 0 part
│ └─myvol-vo 253:0 0 232M 0 lvm /reports
└─vdb2 252:18 0 512M 0 part
└─vgroup-swap 253:1 0 256M 0 lvm [SWAP]
vdc 252:32 0 10G 0 disk
#创建一个新分区
[root@node2 ~]# fdisk /dev/vdb
Welcome to fdisk (util-linux 2.32.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): n
Partition type
p primary (2 primary, 0 extended, 2 free)
e extended (container for logical partitions)
Select (default p):
Using default response p.
Partition number (3,4, default 3):
First sector (2095106-8388607, default 2097152):
Last sector, +sectors or +size{
K,M,G,T,P} (2097152-8388607, default 8388607): +756M
Created a new partition 3 of type 'Linux' and of size 756 MiB.
Command (m for help): w
The partition table has been altered.
Syncing disks.
[root@node2 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 252:0 0 10G 0 disk
├─vda1 252:1 0 1M 0 part
├─vda2 252:2 0 100M 0 part /boot/efi
└─vda3 252:3 0 9.9G 0 part /
vdb 252:16 0 4G 0 disk
├─vdb1 252:17 0 510M 0 part
│ └─myvol-vo 253:0 0 232M 0 lvm /reports
├─vdb2 252:18 0 512M 0 part
│ └─vgroup-swap 253:1 0 256M 0 lvm [SWAP]
└─vdb3 252:19 0 756M 0 part
vdc 252:32 0 10G 0 disk
#格式化交换分区
[root@node2 ~]# mkswap /dev/vdb3
Setting up swapspace version 1, size = 756 MiB (792719360 bytes)
no label, UUID=b6992756-ad20-458d-aeac-e1b362d235e2
[root@node2 ~]# vim /etc/fstab
[root@node2 ~]# cat /etc/fstab | grep vdb3 #启动自动挂载
/dev/vdb3 none swap defaults 0 0
[root@node2 ~]# swapon -a #将/etc/fstab⽂件中所有设置为swap的设备，启动为交换区
[root@node2 ~]# swapon #激活交换空间
NAME TYPE SIZE USED PRIO
/dev/dm-1 partition 256M 0B -2
/dev/vdb3 partition 756M 0B -3
Crear volumen lógico
创建逻辑卷
根据如下要求，创建新的逻辑卷：
逻辑卷取名为 qa ，属于 qagroup 卷组，大小为 60 个扩展块
qagroup 卷组中逻辑卷的扩展块大小应当为 16 MiB
使用 ext3 文件系统格式化新逻辑卷。该逻辑卷应在系统启动时自动挂载到 /mnt/qa 下
[root@node2 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 252:0 0 10G 0 disk
├─vda1 252:1 0 1M 0 part
├─vda2 252:2 0 100M 0 part /boot/efi
└─vda3 252:3 0 9.9G 0 part /
vdb 252:16 0 4G 0 disk
├─vdb1 252:17 0 510M 0 part
│ └─myvol-vo 253:0 0 232M 0 lvm /reports
├─vdb2 252:18 0 512M 0 part
│ └─vgroup-swap 253:1 0 256M 0 lvm [SWAP]
└─vdb3 252:19 0 756M 0 part [SWAP]
vdc 252:32 0 10G 0 disk
[root@node2 ~]# fdisk /dev/vdb #新建分区
Welcome to fdisk (util-linux 2.32.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): n
Partition type
p primary (3 primary, 0 extended, 1 free)
e extended (container for logical partitions)
Select (default e): p
Selected partition 4
First sector (2095106-8388607, default 3645440):
Last sector, +sectors or +size{
K,M,G,T,P} (3645440-8388607, default 8388607):
Created a new partition 4 of type 'Linux' and of size 2.3 GiB.
Command (m for help): w
The partition table has been altered.
Syncing disks.
[root@node2 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 252:0 0 10G 0 disk
├─vda1 252:1 0 1M 0 part
├─vda2 252:2 0 100M 0 part /boot/efi
└─vda3 252:3 0 9.9G 0 part /
vdb 252:16 0 4G 0 disk
├─vdb1 252:17 0 510M 0 part
│ └─myvol-vo 253:0 0 232M 0 lvm /reports
├─vdb2 252:18 0 512M 0 part
│ └─vgroup-swap 253:1 0 256M 0 lvm [SWAP]
├─vdb3 252:19 0 756M 0 part [SWAP]
└─vdb4 252:20 0 2.3G 0 part
vdc 252:32 0 10G 0 disk
[root@node2 ~]# pvcreate /dev/vdb4 #创建物理卷
Physical volume "/dev/vdb4" successfully created.
[root@node2 ~]# vgcreate -s 16M qagroup /dev/vdb4 #创建卷组
Volume group "qagroup" successfully created
[root@node2 ~]# lvcreate -l 60 -n qa qagroup #创建逻辑卷
Logical volume "qa" created.
[root@node2 ~]# mkfs.ext3 /dev/qagroup/qa #格式化逻辑卷
mke2fs 1.45.4 (23-Sep-2019)
Creating filesystem with 245760 4k blocks and 61440 inodes
Filesystem UUID: 4c20ff08-a20d-48e2-83f6-3f5b3064c193
Superblock backups stored on blocks:
32768, 98304, 163840, 229376
Allocating group tables: done
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done
[root@node2 ~]# mkdir /mnt/qa
[root@node2 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 252:0 0 10G 0 disk
├─vda1 252:1 0 1M 0 part
├─vda2 252:2 0 100M 0 part /boot/efi
└─vda3 252:3 0 9.9G 0 part /
vdb 252:16 0 4G 0 disk
├─vdb1 252:17 0 510M 0 part
│ └─myvol-vo 253:0 0 232M 0 lvm /reports
├─vdb2 252:18 0 512M 0 part
│ └─vgroup-swap 253:1 0 256M 0 lvm [SWAP]
├─vdb3 252:19 0 756M 0 part [SWAP]
└─vdb4 252:20 0 2.3G 0 part
└─qagroup-qa 253:2 0 960M 0 lvm
vdc 252:32 0 10G 0 disk
[root@node2 ~]# vim /etc/fstab #设置自动挂载
[root@node2 ~]# cat /etc/fstab | grep qa
/dev/qagroup/qa /mnt/qa ext3 defaults 0 0
[root@node2 ~]# mount -a
[root@node2 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 252:0 0 10G 0 disk
├─vda1 252:1 0 1M 0 part
├─vda2 252:2 0 100M 0 part /boot/efi
└─vda3 252:3 0 9.9G 0 part /
vdb 252:16 0 4G 0 disk
├─vdb1 252:17 0 510M 0 part
│ └─myvol-vo 253:0 0 232M 0 lvm /reports
├─vdb2 252:18 0 512M 0 part
│ └─vgroup-swap 253:1 0 256M 0 lvm [SWAP]
├─vdb3 252:19 0 756M 0 part [SWAP]
└─vdb4 252:20 0 2.3G 0 part
└─qagroup-qa 253:2 0 960M 0 lvm /mnt/qa
vdc 252:32 0 10G 0 disk
Crear volumen VDO
创建 VDO 卷
根据如下要求，创建新的 VDO 卷：
使用未分区的磁盘
该卷的名称为 vdough
该卷的逻辑大小为 50G
该卷使用 xfs 文件系统格式化
该卷（在系统启动时）挂载到 /vbread 下
[root@node2 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 252:0 0 10G 0 disk
├─vda1 252:1 0 1M 0 part
├─vda2 252:2 0 100M 0 part /boot/efi
└─vda3 252:3 0 9.9G 0 part /
vdb 252:16 0 4G 0 disk
├─vdb1 252:17 0 510M 0 part
│ └─myvol-vo 253:0 0 232M 0 lvm /reports
├─vdb2 252:18 0 512M 0 part
│ └─vgroup-swap 253:1 0 256M 0 lvm [SWAP]
├─vdb3 252:19 0 756M 0 part [SWAP]
└─vdb4 252:20 0 2.3G 0 part
└─qagroup-qa 253:2 0 960M 0 lvm /mnt/qa
vdc 252:32 0 10G 0 disk #使用未分区的磁盘
[root@node2 ~]# yum install vdo -y
[root@node2 ~]# vdo create --name=vdough --device=/dev/vdc --vdoLogicalSize=50G
Creating VDO vdough
The VDO volume can address 6 GB in 3 data slabs, each 2 GB.
It can grow to address at most 16 TB of physical storage in 8192 slabs.
If a larger maximum size might be needed, use bigger slabs.
Starting VDO vdough
Starting compression on VDO vdough
VDO instance 0 volume is ready at /dev/mapper/vdough
# 该卷使用 xfs 文件系统格式化
[root@node2 ~]# mkfs.xfs /dev/mapper/vdough
meta-data=/dev/mapper/vdough isize=512 agcount=4, agsize=3276800 blks
= sectsz=4096 attr=2, projid32bit=1
= crc=1 finobt=1, sparse=1, rmapbt=0
= reflink=1
data = bsize=4096 blocks=13107200, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0, ftype=1
log =internal log bsize=4096 blocks=6400, version=2
= sectsz=4096 sunit=1 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
#挂载
[root@node2 ~]# mkdir /vbread
[root@node2 ~]# vim /etc/fstab
[root@node2 ~]# mount -a
[root@node2 ~]# df -Th /vbread/
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vdough xfs 50G 390M 50G 1% /vbread
[root@node2 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 252:0 0 10G 0 disk
├─vda1 252:1 0 1M 0 part
├─vda2 252:2 0 100M 0 part /boot/efi
└─vda3 252:3 0 9.9G 0 part /
vdb 252:16 0 4G 0 disk
├─vdb1 252:17 0 510M 0 part
│ └─myvol-vo 253:0 0 232M 0 lvm /reports
├─vdb2 252:18 0 512M 0 part
│ └─vgroup-swap 253:1 0 256M 0 lvm [SWAP]
├─vdb3 252:19 0 756M 0 part [SWAP]
└─vdb4 252:20 0 2.3G 0 part
└─qagroup-qa 253:2 0 960M 0 lvm /mnt/qa
vdc 252:32 0 10G 0 disk
└─vdough 253:3 0 50G 0 vdo /vbread
Configurar el ajuste del sistema
配置系统调优
为您的系统选择建议的 tuned 配置集并将它设为默认设置。
[root@node2 ~]# yum -y install tuned
Last metadata expiration check: 0:53:38 ago on Wed 30 Aug 2023 04:57:11 PM EDT.
Package tuned-2.13.0-6.el8.noarch is already installed.
Dependencies resolved.
Nothing to do.
Complete!
[root@node2 ~]# systemctl enable tuned
[root@node2 ~]# systemctl restart tuned
[root@node2 ~]# tuned-adm active
Current active profile: throughput-performance
[root@node2 ~]# tuned-adm recommend
virtual-guest
[root@node2 ~]# tuned-adm profile virtual-guest
[root@node2 ~]# tuned-adm active
Current active profile: virtual-guest