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9:56 a.m.
New subject: Best setup for nfs domain and 1gbs adapters on hosts
On Feb 17, 2017 7:22 PM, "Karli Sjöberg" <karli.sjoberg(a)slu.se> wrote:
Den 17 feb. 2017 6:30 em skrev Gianluca Cecchi <gianluca.cecchi(a)gmail.com>:
Hello,
I'm going to setup an environment where I will have 2 hosts and each with 2
adapters to connect to storage domain(s). This will be a test environment,
not a production one.
The storage domain(s) will be NFS, provided by a Netapp system.
The hosts have 4 x 1Gb/s adapters and I think to use 2 for ovirtmgmt and
VMs (through bonding and VLANs) and to dedicate the other 2 adapters to the
NFS domain connectivity.
What would be the best setup to have both HA on the connection and also
using the whole 2Gb/s in normal load scenario?
Is it better to make more storage domains (and more svm on Netapp side) or
only one?
What would be the suitable bonding mode to put on adapters? I normally
use 802.3ad provided by the switches, but I'm not sure if in this
configuration I can use both the network adapters for the overall load of
the different VMs that I would have in place...
Thanks in advance for every suggestion,
Gianluca
Hey G!
If it was me doing this, I would make one 4x1Gb/s 802.3ad bond on filer and
hosts to KISS. Then, if bandwidth is of concern, I would set up two VLANs
for storage interfaces with addresses on separate subnets (10.0.0.1 and
10.0.1.1 on filer. 10.0.0.(2,3) and 10.0.1.(2,3) on hosts) and then on the
filer set up only two NFS exports where you try to as evenly as possible
provision your VMs. This way the network load would evenly spread over all
interfaces for simplest config and best fault tolerance, while keeping
storage traffic at max 2Gb/s. You only need one SVM with several addresses
to achieve this. We have our VMWare environment set up similar to this
towards our NetApp. We also have our oVirt environment set up like this,
but towards a different NFS storage, with great success.
/K
Thanks for your answer, K!
So you mean to make a unique bond composed by all 4 network adapters and
put all the networks on it, comprised ovirtmgmt and such, through clans?
How do you configure 802.3ad on 4 adapters? How many switches do you have
to connect to, from these 4 adapters? Or do you use round robin bonding
(but I presume it is not supported in court this bond)?
Thanks!
2836
days inactive
2837
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1 comments
2 participants
participants (2)
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Gianluca Cecchi -
Karli Sjöberg