Is anyone using EnhanceIO with OMV?

Amuzed2pieces · 22. Mai 2014

I have not installed OMV yet on a NAS I am building. My goal is faster writes for backup during the day, as production in our manufacturing facility can't stop, backups must be both fast and invisible so they don't create a delay on the computational servers.

To that end, is anyone running EnhanceIO cache accelerator on OMV?

It works by taking a fast disk like and SSD and allowing data to move there first. I can tolerate a small risk of data loss, but could run Raid1 to reduce that, as will my UPS. FreeNas uses the ram as cache, FlexRAID has a "landing drive" option, I am just wondering if this is a feature that will work with OMV.

davidh2k · 22. Mai 2014

I never heard of anyone using this, but I heard from at least one user that he used a custom kernel to use a SSD as cache solution with bcache.

Greetings
David

ryecoaaron · 22. Mai 2014

Zitat von "davidh2k"

I never heard of anyone using this, but I heard from at least one user that he used a custom kernel to use a SSD as cache solution with bcache.

With the 3.14 backports kernel, all that is need to use bcache is modprobe bcache Not sure about bcache-tools though...

digital_janitor · 8. August 2014

Sorry to bump an old thread, but I'm having fits trying to get bcache to show up. Here is what I have done, Installed Debian 7.6 64 bit. Installed omv .6. Compiled and installed bcache-tools. Marked a back, and a cache, but I don't see /sys/fs/bcache nor on cat /proc/modules bcache. Uname 3.14-0.bpo.2-rt-amd64 #1 SMP PREEMPT RT Debian 3.14.13-2~bpo70+1 (2014-07-31) x86_64 GNU/Linux. I feel like I must be missing something simple as I have read reports of this working post 3.9 kernels. It's even got a bug report here: http://bugtracker.openmediavault.org/view.php?id=910

install debian 7.6 64bit
select only ssh server
vi /etc/apt/sources.list and remove cdrom source
echo "deb http://packages.openmediavault.org/public kralizec main" > /etc/apt/sources.list.d/openmediavault.list
apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 7E7A6C592EF35D13
apt-get update
apt-get install openmediavault-keyring postfix
(no configuration for postfix)
apt-get install openmediavault
omv-initsystem
reboot
apt-get install vim aptitude git gcc make openjdk-6-jre pkg-config uuid-dev libblkid-dev
cd /tmp
git clone http://evilpiepirate.org/git/bcache-tools.git
cd bcache-tools
make -f ./Makefile
make install
vi /etc/apt/sources.list
Append the following line:
deb http://ftp.debian.org/debian wheezy-backports main
apt-get update
apt-cache search linux-image-3
aptitude install linux-image-3.14-0.bpo.2-rt-amd64 firmware-linux-free dracut kpartx cryptsetup dmraid
update-grub
reboot
make-bcache -B /dev/md0
make-bcache -C /dev/sdh

shadowzero · 9. August 2014

I did some digging into this and found that EnhanceIO is considered experimental with the Debian packages available. See this article for more information: https://tracker.debian.org/pkg/enhanceio I also came across the GitHub repository here: https://github.com/stec-inc/EnhanceIO that may help you setup the EnhanceIO software. There is also some articles from 3rd parties using this software on other distros. While this may not help in what you're trying to accomplish, I hope this will help shed some light on it. For now it does not seem it is polished enough for use on Debian. As for bcache, I have not used it myself but I came across this atricle from askubuntu.com that should help point you in the right direction: http://askubuntu.com/questions…cache-to-cache-hdd-to-ssd and this article on mentors.debian.net: http://mentors.debian.net/package/bcache-tools. I hope that helps somewhat. From the sound of it EnhanceIO is not ready for Debian. Setting up bcache is possible but will take some time to get it working. Just throwing in my two cents here.

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