Ramdisk: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 4: | Line 4: | ||
mkdir /et | mkdir /et | ||
chmod 777 /et | |||
Add following line in ''/etc/fstab'': | Add following line in ''/etc/fstab'': | ||
| Line 12: | Line 13: | ||
systemctl daemon-reload | systemctl daemon-reload | ||
mount /et | mount /et | ||
'''General info''' | '''General info''' | ||
Latest revision as of 13:45, 15 January 2026
On critical daq servers (clondaqx) directory /et have to reside in ramdisk.
Create directory /et:
mkdir /et chmod 777 /et
Add following line in /etc/fstab:
none /et tmpfs nodev,nosuid,noexec,nodiratime,size=4096M 0 0
To activate it without reboot, run following commands:
systemctl daemon-reload mount /et
General info
Check available memory size:
free -g
Example of creating 4G ramdisk and mounting it as /mnt/ramdisk:
su mkdir /mnt/ramdisk mount -t tmpfs -o size=4g xfs /mnt/ramdisk