本地存储管理工具,通过Stratis可以便捷的使用Thin Provisioning、Snapshots、Pool-based的管理和监控等高级存储功能。
Stratis 基于xfs文件系统格式。
# yum install -y stratisd stratis-cli
# systemctl enable --now stratisd
# wipefs -a /dev/vdb // 清除磁盘签名
# wipefs -a /dev/vdc // 清除磁盘签名
# stratis pool create pool-1 /dev/vdb /dev/vdc
# stratis pool list
# stratis pool add-data pool-1 /dev/vdd
# stratis blockdev list pool
# 在Pool创建FileSystem,可以在一个Pool中创建多个filesystem
$ stratis filesystem create pool-1 file-1
$ stratis filesystem list
$ mount /stratis/pool-1/file-1 /mnt/
# 创建Snaphost这样做后,你可以挂载新的Snapshot,
# 它将初始包含与FileSystem相同的文件内容,
# 但它可能随着文件系统的修改而改变。
# 无论你对Snapshot所做的任何更改都不会反映到FileSystem中,
# 除非你卸载了FileSystem并将其销毁。
$ stratis filesystem snapshot pool-1 file-1 snapshot-1
$ mount /stratis/pool-1/snapshot-1 /mnt/
Stratis
可以便捷的使用精简配置(Thin Provisioning
)、快照(Snapshots
)、基于池(Pool-based
)的管理和监控等高级存储功能Stratis
基于xfs文件系统格式,创建filesystem后不需要格式化;例如:在pool池中创建file文件系统,则file文件系统的类型已经是xfs格式,不需要在去格式化stratisd
[root@localhost ~]# yum install -y stratisd stratis-cli
[root@localhost ~]# systemctl enable --now stratisd
pool
pool
中创建文件系统(filesystem
)创建完好的磁盘分区
[root@localhost ~]# lsblk /dev/sda
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 80G 0 disk
└─sda1 8:1 0 20G 0 part
创建pool前查看块设备是否存在签名认证,如果有则必须先清除块设备上的签名认证,才能继续使用
[root@localhost ~]# fdisk -l /dev/sda
Disk /dev/sda: 80 GiB, 85899345920 bytes, 167772160 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x4b000bc8
Disklabel部分就是块设备的签名认证,需要清除该签名认证
[root@localhost ~]# wipefs -a /dev/sda
/dev/sda: 2 bytes were erased at offset 0x000001fe (dos): 55 aa
/dev/sda: calling ioctl to re-read partition table: Success
清除后,再次查看块设备的签名信息
[root@localhost ~]# fdisk -l /dev/sda
Disk /dev/sda: 80 GiB, 85899345920 bytes, 167772160 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
创建pool池,一般是要求1G以上大小的块设备,才能创建pool池
[root@localhost ~]# stratis pool create pool-one /dev/sda1 //pool-one是pool的名称;/dev/sda1是拿来使用的块设备
[root@localhost ~]# stratis pool list
Name Total Physical Size Total Physical Used
pool-one 20 GiB 52 MiB
向已经存在的pool池中添加块设备
[root@localhost ~]# lsblk /dev/sda2
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda2 8:2 0 20G 0 part
[root@localhost ~]# stratis pool add-data pool-one /dev/sda2
[root@localhost ~]# stratis pool list
Name Total Physical Size Total Physical Used
pool-one 40 GiB 72 MiB //容量比原来扩大了
同时将两块块设备添加到同一个pool池中
[root@localhost ~]# lsblk /dev/sda3 /dev/sda4
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda3 8:3 0 10G 0 part
sda4 8:4 0 20G 0 part
[root@localhost ~]# stratis pool create pool-two /dev/sda3 /dev/sda4
[root@localhost ~]# stratis pool list
Name Total Physical Size Total Physical Used
pool-one 40 GiB 72 MiB
pool-two 30 GiB 56 MiB
查看pool-one池和pool-two池中所使用的块设备
[root@localhost ~]# stratis blockdev list pool-one
Pool Name Device Node Physical Size State Tier
pool-one /dev/sda1 20 GiB InUse Data
pool-one /dev/sda2 20 GiB InUse Data
[root@localhost ~]# stratis blockdev list pool-two
Pool Name Device Node Physical Size State Tier
pool-two /dev/sda3 10 GiB InUse Data
pool-two /dev/sda4 20 GiB InUse Data
查看pool-one池和pool-two池中块设备的信息
[root@localhost ~]# lsblk /dev/sda
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 80G 0 disk
├─sda1 8:1 0 20G 0 part
│ └─stratis-1-private-2a5d0ca4266540b889057f37816c7423-physical-originsub 253:3 0 40G 0 stratis
│ ├─stratis-1-private-2a5d0ca4266540b889057f37816c7423-flex-thinmeta 253:4 0 32M 0 stratis
│ │ └─stratis-1-private-2a5d0ca4266540b889057f37816c7423-thinpool-pool 253:7 0 40G 0 stratis
│ ├─stratis-1-private-2a5d0ca4266540b889057f37816c7423-flex-thindata 253:5 0 40G 0 stratis
│ │ └─stratis-1-private-2a5d0ca4266540b889057f37816c7423-thinpool-pool 253:7 0 40G 0 stratis
│ └─stratis-1-private-2a5d0ca4266540b889057f37816c7423-flex-mdv 253:6 0 16M 0 stratis
├─sda2 8:2 0 20G 0 part
│ └─stratis-1-private-2a5d0ca4266540b889057f37816c7423-physical-originsub 253:3 0 40G 0 stratis
│ ├─stratis-1-private-2a5d0ca4266540b889057f37816c7423-flex-thinmeta 253:4 0 32M 0 stratis
│ │ └─stratis-1-private-2a5d0ca4266540b889057f37816c7423-thinpool-pool 253:7 0 40G 0 stratis
│ ├─stratis-1-private-2a5d0ca4266540b889057f37816c7423-flex-thindata 253:5 0 40G 0 stratis
│ │ └─stratis-1-private-2a5d0ca4266540b889057f37816c7423-thinpool-pool 253:7 0 40G 0 stratis
│ └─stratis-1-private-2a5d0ca4266540b889057f37816c7423-flex-mdv 253:6 0 16M 0 stratis
├─sda3 8:3 0 10G 0 part
│ └─stratis-1-private-31db6de0edb64a3f8721a33f55922b69-physical-originsub 253:8 0 30G 0 stratis
│ ├─stratis-1-private-31db6de0edb64a3f8721a33f55922b69-flex-thinmeta 253:9 0 16M 0 stratis
│ │ └─stratis-1-private-31db6de0edb64a3f8721a33f55922b69-thinpool-pool 253:12 0 30G 0 stratis
│ ├─stratis-1-private-31db6de0edb64a3f8721a33f55922b69-flex-thindata 253:10 0 30G 0 stratis
│ │ └─stratis-1-private-31db6de0edb64a3f8721a33f55922b69-thinpool-pool 253:12 0 30G 0 stratis
│ └─stratis-1-private-31db6de0edb64a3f8721a33f55922b69-flex-mdv 253:11 0 16M 0 stratis
└─sda4 8:4 0 20G 0 part
└─stratis-1-private-31db6de0edb64a3f8721a33f55922b69-physical-originsub 253:8 0 30G 0 stratis
├─stratis-1-private-31db6de0edb64a3f8721a33f55922b69-flex-thinmeta 253:9 0 16M 0 stratis
│ └─stratis-1-private-31db6de0edb64a3f8721a33f55922b69-thinpool-pool 253:12 0 30G 0 stratis
├─stratis-1-private-31db6de0edb64a3f8721a33f55922b69-flex-thindata 253:10 0 30G 0 stratis
│ └─stratis-1-private-31db6de0edb64a3f8721a33f55922b69-thinpool-pool 253:12 0 30G 0 stratis
└─stratis-1-private-31db6de0edb64a3f8721a33f55922b69-flex-mdv 253:11 0 16M 0 stratis
在pool-one池中创建filesystem(一次只能创建一个filesystem)
[root@localhost ~]# stratis filesystem create pool-one file-one //pool-one是pool的名称;file-one是filesystem的名称
[root@localhost ~]# stratis filesystem list //列出已经拥有的filesystem
Pool Name Name Used Created Device UUID
pool-one file-one 546 MiB Sep 20 2020 20:33 /stratis/pool-one/file-one deeb42ce571542cab33afcbfece6dd0a
查看指定pool池中拥有的filesystem
[root@localhost ~]# stratis filesystem list pool-one
Pool Name Name Used Created Device UUID
pool-one file-one 546 MiB Sep 20 2020 20:33 /stratis/pool-one/file-one deeb42ce571542cab33afcbfece6dd0a
挂载filesystem,挂载点:/fsdir
[root@localhost ~]# mkdir /fsdir
[root@localhost ~]# mount /stratis/pool-one/file-one /fsdir/
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 886M 0 886M 0% /dev
tmpfs 903M 0 903M 0% /dev/shm
tmpfs 903M 8.7M 894M 1% /run
tmpfs 903M 0 903M 0% /sys/fs/cgroup
/dev/mapper/rhel-root 50G 1.7G 49G 4% /
/dev/nvme0n1p1 1014M 173M 842M 17% /boot
/dev/mapper/rhel-home 27G 225M 27G 1% /home
tmpfs 181M 0 181M 0% /run/user/0
/dev/sr0 7.4G 7.4G 0 100% /mnt
/dev/mapper/stratis-1-2a5d0ca4266540b889057f37816c7423-thin-fs-deeb42ce571542cab33afcbfece6dd0a 1.0T 7.2G 1017G 1% /fsdir
[root@localhost ~]# blkid /stratis/pool-one/file-one
/stratis/pool-one/file-one: UUID="deeb42ce-5715-42ca-b33a-fcbfece6dd0a" TYPE="xfs"
[root@localhost ~]# echo "UUID=deeb42ce-5715-42ca-b33a-fcbfece6dd0a /fsdir xfs defaults 0 0" >> /etc/fstab
[root@localhost ~]# tail -3 /etc/fstab
/dev/mapper/rhel-home /home xfs defaults 0 0
/dev/mapper/rhel-swap swap swap defaults 0 0
UUID=deeb42ce-5715-42ca-b33a-fcbfece6dd0a /fsdir xfs defaults 0 0
分类: 磁盘管理
由 自作多情 提交于 2020-01-06 18:58:11
Red Hat Enterprise Linux 8中,引入新的存储管理系统Stratis。其功能总结如下:
Stratis存储管理建立在Linux Mapper/ LVM及XFS的基础上,提供了便捷的管理功能,从某种程度上看,似乎就是一个本地版的Glusterfs。要使用Stratis,必须要安装Stratisd、stratis-cli两个软件包。创建过程如下:
# yum install stratisd stratis-cli
# systemctl enable --now stratisd
# stratis pool create mypool /dev/vdb
在第二块虚拟磁盘/dev/vdb上创建了一个名叫mypool的资源池。
# stratis filesystem create mypool myfls
上面这条命令,在资源池mypool的基础上创建了文件系统myfls。
# mkdir /mnt/myfls
# echo '/stratis/mypool/myfls /mnt/myfls xfs defaults 0 0' >> /etc/fstab
# mount -a
# echo 'Hello, world' > /mnt/myfls/test.txt
# cat /mnt/myfls/test.txt
以上操作似乎少了点什么吧?对,似乎没有格式化就可以使用了。Stratis文件系统就是这么神奇。不需要你专门来格式化。
# stratis pool add-data mypool /dev/vdc
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