Re: how to change ovh server raid to 0
Quote:
Originally Posted by
slacker
Code:
mdadm --create /dev/md2 --level=0 --raid-devices=2 /dev/sda2 /dev/sdb2
Slackers, they surely know their way with cli :)
@mike160
My advice will be clean install. You already tried few random advices and failed, its possible that you have already broken something, which might lead to future problems.
At least check `cat /proc/mdstat` to see the current md state of your server before using mdadm.
Re: how to change ovh server raid to 0
thanks all everthing is working now
Re: how to change ovh server raid to 0
I'm in the verge of doing the same as mike did, but i would like to ask a few things if i may.
Since we are talking about softraid are there any downsides to having a soft one instead of a hardware raid?
Apart from having 2 separate disks show as one, do you also get a better speed and better allocation and hashing on torrents when you have a softraid?
And am i right to assume that since it's a software thing, then its performance would greatly depend on the specs of the system (cpu,ram etc etc)?
Right now i can see on my ovh server both my disks (1.5tb each) seperately of course (i can download on both if i want) and i'm trying to figure out if it's worth wiping everything and setting up from the start in order to have a soft raid. would i see any difference in rt/rut?
Thank you all
Re: how to change ovh server raid to 0
softraid is faster in some cases, slower in others. for a seedbox you won't notice.
if you have a gbit server you will definitely notice a faster speed, and 100mbit will be slightly faster.
Re: how to change ovh server raid to 0
Quote:
Originally Posted by
The_Wire
I'm in the verge of doing the same as mike did, but i would like to ask a few things if i may.
Since we are talking about softraid are there any downsides to having a soft one instead of a hardware raid?
Apart from having 2 separate disks show as one, do you also get a better speed and better allocation and hashing on torrents when you have a softraid?
And am i right to assume that since it's a software thing, then its performance would greatly depend on the specs of the system (cpu,ram etc etc)?
Right now i can see on my ovh server both my disks (1.5tb each) seperately of course (i can download on both if i want) and i'm trying to figure out if it's worth wiping everything and setting up from the start in order to have a soft raid. would i see any difference in rt/rut?
Thank you all
You might want to format the disks as ext4 and tweak them, adding noatime and writeback flags to your mount options. I've noticed increases in hard disk performance to up to 30% on some cases, especially when the disk is nearly overloading.
Re: how to change ovh server raid to 0
Quote:
Originally Posted by
Cabalo
You might want to format the disks as ext4 and tweak them, adding noatime and writeback flags to your mount options. I've noticed increases in hard disk performance to up to 30% on some cases, especially when the disk is nearly overloading.
Thank you for this information Cabalo! it's a bit techical for me (that noatime writeback flags etc) but i will keep it in mind and search some more for it once i decide to wipe the system and re-setup it.
also thank you Thelen for your input.
The bottom line is that even with soft-raid i will see a difference and will help the hdd and overall performance. So it's worth the effort.
Re: how to change ovh server raid to 0
You don't have to wipe your system to use those flags, even if you are on ext3.
There's this tutorial: http://blog.smartlogicsolutions.com/...m-performance/
Re: how to change ovh server raid to 0