Ramdisk: Difference between revisions
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On critical daq servers (clondaqx) directory ''/et'' have to reside in ramdisk. | On critical daq servers (clondaqx) directory ''/et'' have to reside in ramdisk. Create directory ''/et'', and add following line in ''/etc/fstab'': | ||
none /et tmpfs nodev,nosuid,noexec,nodiratime,size=4096M 0 0 | none /et tmpfs nodev,nosuid,noexec,nodiratime,size=4096M 0 0 | ||
it will show up after reboot. To enable it without reboot, type ''mount /et''. | it will show up after reboot. To enable it without reboot, type ''mkdir /et'' and ''mount /et''. | ||
Latest revision as of 17:56, 1 February 2024
On critical daq servers (clondaqx) directory /et have to reside in ramdisk. Create directory /et, and add following line in /etc/fstab:
none /et tmpfs nodev,nosuid,noexec,nodiratime,size=4096M 0 0
it will show up after reboot. To enable it without reboot, type mkdir /et and 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