deactivate swap memory

[Juquin_3]

Hi , i would like to deactivate my swap memory . Can somebody tell me how to do it ?

thanks ,

[Naveej.K.A]

hi,

reboot

or

shutdown -r

Only way to deactivate the allocated swap space

with best wishes
Naveej

[Michael Tully]

You can't, you need to reboot your system. If you have this swap entry in /etc/fstab you need to comment it before you reboot.

[Dietmar Konermann]

The swapoff() syscall is defined in HP-UX...

# grep swapoff /usr/include/sys/scall_define.h
#define SYS_swapoff 77

Unfortunately it is not implemented. So you need to comment/remove the corresponding entry from /etc/fstab and reboot.

Best regards...
Dietmar.

[Bill Hassell]

Nope, can't do it. Swap space is really an extension to RAM so it would be like removing a memory module while the system is running. You can add swapspace with the swapon command but you can't remove swap space without a reboot.

[Geoff Wild]

As others have said - you can't do this live. Reqires a reboot.

Best to do it from SAM -> Disk and Filesystems -> Swap

Rgds...Geoff

[Sridhar Bhaskarla]

Hi,

I believe you are talking about the "memory" line you see in your 'swapinfo' output. That's pseudoswap and is simply nothing but a number, nearly 75% of the physical memory alloted at boot time. It allows you to configure lower device swaps and it is particularly useful if you have tonnes of physical memory on the systems. It does no harm on systems with larger memories, but may cause a hiccups on small systems only if you configured too little device swap.

If you want to get rid of it, you will need to make 'swapmem_on' kernel paramter to 0, configure the kernel and reboot the system. You can use SAM to do it for you.

-Sri