make better use of ssd and ram on omv!

[Rheinwasser]

hey y'all,

 

i own a small omv box which i am quite happy with. it has 8gb of ram and is installed on an 120gb ssd.

the box is at all times sitting at 2-3% ram usage which is a little bit of a waste. is there a way to make use of the ram better (maybe some form of caching, whatever).

also the ssd is far from full but i also obviously can't store any data on it. can it be used for caching?

thanks a lot!

[TheAmazingCookieFromSquare]

If you have a ROG from Asus you can turn the ram into a ramdisk which turns the ram into super fast cache storage for the system

[Rheinwasser]

If you have a ROG from Asus you can turn the ram into a ramdisk which turns the ram into super fast cache storage for the system

i dont, and btw, ramdisk are a windows only thing if i remember correctly. i am looking for a solution inside omv.

[Rheinwasser]

Any Linux system can create RAMDisks with tmpfs but MDADM does not have any caching feature. But you can change how much RAM and CPU to allow for rebuilding after a drive failure.

thats interesting, but the rog thing is probably windows only. :-)

what is MDADM? i'm a complete linux noob. do you think it would be worth it for a simple nas?

 

well, i am luckily not rebuilding my raid array to often.

[Rheinwasser]

What OMV advertise as "RAID Support" is using MDADM.

ok thanks, that means that i wont be able to make use of the empty space on my ssd?

[Rheinwasser]

You can repartition your SSD or create a loop device from your SSD then use the OMV GUI to create a single drive stripped array.

can you provide a link? as i already said, i dont know anything about linux, sadly.

does repartitioning require a reinstallation on linux?

 

but if i did that, i would really just have the disk space available, i still couldnt do caching, could I?

[Jarsky]

can you provide a link? as i already said, i dont know anything about linux, sadly.

does repartitioning require a reinstallation on linux?

 

but if i did that, i would really just have the disk space available, i still couldnt do caching, could I?

 

 

Its actually a lot more complicated than you might think.

 

Looking at OMV it seems to be a GUI interface like FreeNAS that can sit on top of any Linux kernel/base install. Looks like theres the 'easy install version' and the binary for those who want to customise a lot more.

 

Looks like you would have had to do a normal Linux install and then installed the OMV binaries to give you all the backend functionality of LInux. Then basically you create a seperate partition on the SSD which you mount to /tmp, then install a package like bcache and configure it.

 

Theres no real support for doing this, so any instructions would be extremely generic to the debian kernel and would require major troubleshooting to get right, which would be difficult if you don't even know the basics of using Linux via CLI.

 

I would just enjoy the power savings of using low resource on it

[Rheinwasser]

Its actually a lot more complicated than you might think.

 

Looking at OMV it seems to be a GUI interface like FreeNAS that can sit on top of any Linux kernel/base install. Looks like theres the 'easy install version' and the binary for those who want to customise a lot more.

 

Looks like you would have had to do a normal Linux install and then installed the OMV binaries to give you all the backend functionality of LInux. Then basically you create a seperate partition on the SSD which you mount to /tmp, then install a package like bcache and configure it.

 

Theres no real support for doing this, so any instructions would be extremely generic to the debian kernel and would require major troubleshooting to get right, which would be difficult if you don't even know the basics of using Linux via CLI.

 

I would just enjoy the power savings of using low resource on it

ok, thanks a lot!

 

then i guess i'll leave it as it is for now and if i have way to much time at some point i'll get back to this.

thanks again!

[Rheinwasser]

-whoops-