Bonding 802.3ad betting performance ?

[nsc]

I aggree with the fact that replication must not impact read performance.

My ESXi 4 is in MPIO support RR Vmware : i see activity on my two ETH for iISCSI traffic (but may it's not working...)

So what is your teaming mode in DSS to get 170Mb / s in read ?

I tried Balance-RR (lower read performance) and Balance ALB.

What is yours ?

[red]

I aggree with the fact that replication must not impact read performance.

My ESXi 4 is in MPIO support RR Vmware : i see activity on my two ETH for iISCSI traffic (but may it's not working...)

So what is your teaming mode in DSS to get 170Mb / s in read ?

I tried Balance-RR (lower read performance) and Balance ALB.

What is yours ?

bonding between client and dss? what for? mpio does it for me.
for an example: dss with 2x ge ports,
port A with 10.0.0.1/24 connected to switch A
port B with 10.0.1.1/24 connected to switch B
now client (xen in this case) also have 2ge ports, which are connected to switch A and B, this way each of the port is seperate from the other one and in its own network, for the 'balancing' i setup a iscsi connection to each of the network (10.0.0.1 and 10.0.1.1) and put mpio over it to balance the io requests (change path every 4io requests) - this way im getting about 170MB/s read

[nsc]

ok red now i have understand

I want to have HA Open-e so i have only one Virtual IP for link between client & OpenE... I can't use Mpio on IP for the link... (Or may be DSS V6 can give me more than one Virtual IP?

I'll try your setup anyway.

But with your setup you dont have automatic failover for your san right ?

[pfeifferl]

ok red now i have understand

I want to have HA Open-e so i have only one Virtual IP for link between client & OpenE... I can't use Mpio on IP for the link... (Or may be DSS V6 can give me more than one Virtual IP?

Yes, you can have more than one vIP - I use MPIO with 2 vIPs.

[nsc]

i removed my bond for iscsi (eth3 / eth5)

on eth3 : 10.0.0.1 Jumbo Frame 9000
on eth5 : 10.0.0.3 Jumbo Frame 9000

on esxi host i add 10.0.0.3 for iscsi

now i have my 4 paths to access my iscsi volume

Round Robin Vmware is active

No perfomance improvement with CrystalDiskMark

I'm using OpenE V5 (not V6) may it's a limitation with IET / SCST option for ISCSI ?

I'm planning to move to V6...

[red]

i had to tweak mpio settings to get any increase in performance at all - 4 IOs per path instead of default 1000

[nsc]

i dont find this kind of option in Vmware.

Following a blog message, i just have to activate Round Robin option.

I'll wait for V6 then...