Hello;
I'm new to OMV. Tried yesterday my first installation, on a home built server which initially was intended to run FreeNas:
asus m5a99x evo r2.0 motherboard
16GB ECC ram
LSI 9240-8i Raid card, reimaged in IT - plain HBA.
One Intel Pro 1000GT network card, in addition to the on-board port.
4x3TB Toshiba hard drives, planning to add a 5th soon.
Started with a RAID6 setup.
OS on a Crucial SSD
I'd appreciate some comments relative to the following questions:
Storage:
- are there any functionality drawbacks aside from the obvious lack of real time parity calculation, in using aufs and snapraid, oposed to a RAID 5 or 6? The reason I'm considering these instead of RAID, is to allow hard drives to spin down, if not in use. I learned about aufs & snapraid here, in another newbie's post: New to OMV, need help with my array.
- I assume a software RAID would not "sleep", and would keep the harddrives up all the time, regardless whether in use or not. Is that right?
- what is the purpose of the LVM2 plugin, what does it provide, in addition to mdadm, or is it a replacement for it? Why would I use one over the other?
- should I forego the idea of using snapraid, are there available other integrity checks to protect from bitrot corruption?
ECC memory:
- is there anything in OMV implementation which benefits from the presence of ECC RAM
UPS:
- the underlying Debian NUT version 2.6.2 is missing the apcupsd driver (apcupsd-ups) which was added from 2.7.1 onward. This prevents me to setup OMV Ups section as slave/client to another computer running apcups sw, and having my APC ups directly connected to it. (in fact that is my router, which runs Shibby Tomato, and which also serves as UPS Master to my other computers at home).
Any way to get around that limitation?
Note: I've added Debian jessie (testing) repository to sources.lists, but messed up completely omv installation, when I've upgraded NUT from 2.6.2 to 2.7.2. I'll have to reinstall OMV and start again.
Network:
I have two network ports on my server. One coming with the MB (Realtek 8169, i think), eth0, the other I've added (Intel desktop 1000GT) eth1. Using Eth0, the server kept losing network settings (it runs with DHCP after installation), after some time being up. I could not relate the issue to anything in particular and have not had a chance to check the logs. Swapping the main network interface to the add-on card (eth1), seemed to be more stable. Any suggestions relative to what is going on? I have not checked if OMV is supporting multiple network ports (trunking, failover, etc). Is it?
Thank you for your input,
hg