Increasing RAM and SWAP

[Pedro Cirne]

Hi,

I'm adding 8Gb RAM to my rp7410 that already has 8Gb.

My SWAP at the moment is:
root@PORSX001:/# swapinfo -a
Kb Kb Kb PCT START/ Kb
TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME
dev 4194304 969400 3224904 23% 0 - 1 /dev/vg00/lvol2
dev 4096000 964124 3131876 24% 0 - 1 /dev/vg00/swap2
reserve - 5173944 -5173944
memory 6607728 3410624 3197104 52%


What's the best option, to add another swap device of 8Gb or remove /dev/vg00/swap2 and add a new one with 12Gb?

Thks,

Pedro

[Muthukumar_5]

Read this,

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=790791

hth.

[MarkSyder]

How many discs are in your system? It's best to spread the swap across all your discs to improve performance.

Mark Syder (like the drink but spelt different)

[Pedro Cirne]

Hi,

Just the 2 internal disks mirrored.

Enjoy :)

Pedro

[Just-In]

Hi Pedro,.,

To the best of my knowledge, it is better to distribute the DEVICE SWAP. You can give same PRIORITY for all swap space for equal swap load distributions.

Shiv

[Pete Randall]

Pedro,

I wouldn't worry about spreading the swap across disks - if you're suffering from swapping, the minor performance improvement from speading the I/O will never be noticed.

Using that same logic that you never want to swap anyway, I would suggest that you just add another swap device. It will be much simpler to accomplish and just as effective.


Pete

[Pedro Cirne]

Hi Pete,

I'm back to work :-)

I agree with you!

Enjoy :-)

Pedro