[TriLUG] TriLUG Server Refresh

Thu Apr 30 13:30:24 EDT 2015

OS for the Host - Centos or Debian
Drives - atleast 2, raid + lvm (Software raid is pretty good these days
with mdstat)
IPv4 - Haproxy for all web traffic, will divert to the appropriate vm. 22
goes direct to vm, some other port for ssh to the host. iptables / haproxy
for the other stuff like mail.

On Thu, Apr 30, 2015 at 1:22 PM, Mauricio Tavares via TriLUG <
trilug at trilug.org> wrote:

> On Thu, Apr 30, 2015 at 1:00 PM, Bill Farrow via TriLUG
> <trilug at trilug.org> wrote:
> > TriLUG has acquired a new rackmount server from ncsu-lug. The Steering
> > Committee (SC) intends to replace our existing server, Pilot, by
> > moving it into a VM running on this new hardware. The plan is to
> > purchase new hard drives, install a small host OS, and bring up a kvm
> > guest of "pilot". We could use some help and advice:
> >
> > * How many disks should we buy ?
>
>       Correct me if I am wrong but it is a 2U with 6 drive bays.
> Personally I would get at least 4 drives: 2 small ones (SSD?) for the
> OS and 2-4 large ones for the VMs (raid 1 or 5). For the large drives,
> how much are 2TB nowadays?
>
> > * How should the disks be managed (lvm, raid, etc) ?
>
>       Since lvm now can do raid, I would suggest that.
>
> > * What host OS ? (Pilot is Ubuntu 12.04 LTS)
>
>       It depends on how you want to deploy. Personally I want to do as
> lightweight vm host os as possible, so something like alpine linux
> would be a starting point. That said, it would make sense it to be
> Ubuntu 12.04 LTS because of what people are comfortable with.
>
> For which vm thingie to run, I personally have run esxi, kvm/qemu,
> vbox, and xen. I can help with any of those but I only have packer
> scripts (to spool up vms) for esxi and kvm. I would also later suggest
> to run docker/juju but having that server to be a vm.
>
> > * How do we manage the host and VMs if we only have 1 public ipv4
> address ?
> >
>       That is a router issue: ports (PAT?). But you will need to do
> that anyway depending on which other services you will provide. But,
> we can have some weird port to ssh into the host... using of course
> "password" as the password.
> >
> > Current Server:
> >   Supermicro X6DH8-XB, 2x Intel Xeon Dual-Core 3.2GHz, 2GB RAM
> >   3ware 9000 Storage Controller
> >   8x WDC WD2500SD-01KCC0 Hard Drives
> >   1x FUJITSU MHT2040BH
> >
> > New Server:
> >   Dell PowerEdge 2950, 2x Intel Xeon X5450 3.0GHz, 32GB RAM
> >   8x empty drive slots for 2.5" SATA HDD
> >   http://trilug.org/~bgerard/moya.specs.tgz
> > --
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> --
> This message was sent to: Jon Mainguy <jon at jmainguy.com>
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>