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If I create a ram disk on cent os using tmpfs will it go away on restart? I know the data will go away (I would assume), but will it still survive a reboot?

I am going to allocate a ram disk for use on mysql /tmp directory I just want to make sure it will work after reboot. (I don't have another server to try it on)

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migrated from serverfault.com Apr 27 '14 at 14:25

This question came from our site for system and network administrators.

What do you mean by making sure it will work? Do you want the /tmp directory to be tmpfs again (that is easily done with an entry in /etc/fstab and starting mysql after mounting). But the contents mysql put there will be gone. – Anthon Apr 29 '14 at 4:27

The data on a tmpfs (Temporary Filesystem) will not persist across reboots.

If you only care to preserve the mountpoint, that will be dictated by your /etc/fstab definition.

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