Exercise 3: Disk Management - Managing Advanced Storage
Here are some key issues pertaining to Managing Advanced Storage that have been addressed and are crucial for exam preparation.
Managing Advanced Storage
Create a Stratis pool named pisstratispool using the disk /dev/nvme0n5.
# Creating the stratis pool
[root@server ~]# stratis pool create pisstratispool /dev/nvme0n5
# Listing the stratis pool
[root@server ~]# stratis pool list
Name Total / Used / Free Properties UUID Alerts
pisstratispool 5 GiB / 526 MiB / 4.49 GiB ~Ca,~Cr, Op e90237bc-e62d-46d5-9001-618b9dc6ff8e WS001
[root@server ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sr0 11:0 1 1024M 0 rom
nvme0n1 259:0 0 20G 0 disk
├─nvme0n1p1 259:1 0 600M 0 part /boot/efi
├─nvme0n1p2 259:2 0 1G 0 part /boot
└─nvme0n1p3 259:3 0 18.4G 0 part
├─cs-root 253:0 0 16.4G 0 lvm /
└─cs-swap 253:1 0 2G 0 lvm [SWAP]
nvme0n2 259:4 0 5G 0 disk
├─nvme0n2p1 259:5 0 1G 0 part /pisdata1
└─nvme0n2p2 259:6 0 512M 0 part [SWAP]
nvme0n3 259:7 0 6G 0 disk
└─nvme0n3p1 259:8 0 1G 0 part
├─pisvg-pislv1 253:2 0 200M 0 lvm /pisdata3
└─pisvg-pislv2 253:3 0 1.3G 0 lvm
nvme0n4 259:9 0 5G 0 disk
└─pisvg-pislv2 253:3 0 1.3G 0 lvm
nvme0n5 259:10 0 5G 0 disk
└─stratis-1-private-e90237bce62d46d59001618b9dc6ff8e-physical-originsub 253:4 0 5G 0 stratis
├─stratis-1-private-e90237bce62d46d59001618b9dc6ff8e-flex-thinmeta 253:5 0 5M 0 stratis
│ └─stratis-1-private-e90237bce62d46d59001618b9dc6ff8e-thinpool-pool 253:8 0 4.5G 0 stratis
├─stratis-1-private-e90237bce62d46d59001618b9dc6ff8e-flex-thindata 253:6 0 4.5G 0 stratis
│ └─stratis-1-private-e90237bce62d46d59001618b9dc6ff8e-thinpool-pool 253:8 0 4.5G 0 stratis
└─stratis-1-private-e90237bce62d46d59001618b9dc6ff8e-flex-mdv 253:7 0 512M 0 stratis
nvme0n6 259:11 0 2G 0 disk
Expand capacity of the pisstratispool using the another disk /dev/nvme0n6.
[root@server ~]# stratis pool add-data pisstratispool /dev/nvme0n6
[root@server ~]# stratis pool list
Name Total / Used / Free Properties UUID Alerts
pisstratispool 7 GiB / 530 MiB / 6.48 GiB ~Ca,~Cr, Op e90237bc-e62d-46d5-9001-618b9dc6ff8e Create a thin provisioned filesystem named pispoolfs in the pisstratispool
[root@server ~]# stratis fs create pisstratispool pispoolfs
[root@server ~]# stratis fs list
Pool Filesystem Total / Used / Free / Limit Created Device UUID
pisstratispool pispoolfs 1 TiB / 546 MiB / 1023.47 GiB / None Apr 16 2024 16:02 /dev/stratis/pisstratispool/pispoolfs cfbebc79-8c84-4955-9111-fed84d3d56bbMount the pispoolfs filesystem on /pisdir4 directory and also make sure that it gets mounts automatically at boot time.
# Temporary Mounting
[root@server /]# mount /dev/stratis/pisstratispool/pispoolfs /pisdir4
[root@server /]# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 4.0M 0 4.0M 0% /dev
tmpfs 1.8G 0 1.8G 0% /dev/shm
tmpfs 717M 9.4M 708M 2% /run
/dev/mapper/cs-root 17G 5.2G 12G 32% /
/dev/nvme0n2p1 960M 39M 922M 5% /pisdata1
/dev/mapper/pisvg-pislv1 195M 12M 184M 6% /pisdata3
/dev/nvme0n1p2 960M 481M 480M 51% /boot
/dev/nvme0n1p1 599M 7.0M 592M 2% /boot/efi
tmpfs 1.0M 0 1.0M 0% /run/stratisd/ns_mounts
tmpfs 359M 100K 359M 1% /run/user/1000
/dev/mapper/stratis-1-e90237bce62d46d59001618b9dc6ff8e-thin-fs-cfbebc798c8449559111fed84d3d56bb 1.0T 7.2G 1017G 1% /pisdir4
# Permanent Mounting
[root@server ~]# vim /etc/fstab
[root@server ~]# tail -1 /etc/fstab
/dev/stratis/pisstratispool/pispoolfs /pisdir4 xfs defaults,x-systemd.requires=stratisd.service 0 0
# Daemon Reload
[root@server ~]# mount -a
mount: (hint) your fstab has been modified, but systemd still uses
the old version; use 'systemctl daemon-reload' to reload.
[root@server ~]# systemctl daemon-reload
# After Reboot
[root@server ~]# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 4.0M 0 4.0M 0% /dev
tmpfs 1.8G 0 1.8G 0% /dev/shm
tmpfs 717M 9.4M 708M 2% /run
/dev/mapper/cs-root 17G 5.2G 12G 32% /
/dev/mapper/pisvg-pislv1 195M 12M 184M 6% /pisdata3
/dev/nvme0n2p1 960M 39M 922M 5% /pisdata1
tmpfs 1.0M 0 1.0M 0% /run/stratisd/ns_mounts
/dev/nvme0n1p2 960M 481M 480M 51% /boot
/dev/nvme0n1p1 599M 7.0M 592M 2% /boot/efi
tmpfs 359M 16K 359M 1% /run/user/42
/dev/mapper/stratis-1-e90237bce62d46d59001618b9dc6ff8e-thin-fs-cfbebc798c8449559111fed84d3d56bb 1.0T 7.2G 1017G 1% /pisdir4
tmpfs 359M 96K 359M 1% /run/user/1000