Ramdisk: Difference between revisions
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On critical daq servers (clondaqx) directory ''/et'' | On critical daq servers (clondaqx) directory ''/et'' have to reside in ramdisk. 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. | it will show up after reboot. To enable it without reboot, type ''mount /etc''. | ||
Revision as of 14:16, 9 March 2018
On critical daq servers (clondaqx) directory /et have to reside in ramdisk. 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 mount /etc.
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