1
vote
2answers
102 views

Is VLAN separation required for multiple networks?

I am setting up a Dell 6248 combining separate switches used previously. I am planning the following architecture: VLAN 1 - External traffic (each server's public interface connects to this) VLAN 2 ...
1
vote
2answers
155 views

Can I run vMotion traffic over iSCSI network ESXi 5.5

Is there anything wrong with using one vmkernel in a multipathed iSCSI setup for vMotion traffic as well as iSCSI? I have iSCSI storage setup using 2 vmkernels for MPIO. I'd like to use one of those ...
0
votes
2answers
342 views

Routing traffic to a specific NIC in Windows

I added a 10GB NIC to a SQL server which is connected over to a backend storage using ISCSI. I would like to force traffic going to a certain IP address/host to use the 10gb NIC, while all other ...
1
vote
1answer
63 views

Esx Storage / Management Network Architecture

Hi I'm trying to find the most reliable and performant solution for a vmWare storage / management network. Little overwhelmed with the options and limitations hoping for some insight based on my ...
2
votes
1answer
75 views

Storage Network Stops Transmitting Traffic

I have a troublesome issue. I have a 10Gb storage network serving a VMWare vSphere 5.1 environment. Storage: TrueNAS(NFS) with a Chelseio T320 10Gb Nic Storage: Dell PowerVault MD3600i(iSCSI) ...
5
votes
1answer
294 views

100% packets dropped on first RX queue on 3/5 raid6 iSCSI NAS devices using intel igb (resolved)

Edit : The issue is resolved. The Queues in question have been used for Flow Control Packets. Why the igb driver propagated FC packets up to have them dropped (and counted) is another question. But ...
1
vote
1answer
61 views

MPIO Linux Servers and switches

Good day, I have an UltraStor RS16IP4 ISCSI SAN and two Netgear GS748T switches. I'm looking to integrate MPIO (Multipath I/O) between my servers and the SAN. I'm somewhat new to MPIO and want to ...
1
vote
1answer
163 views

How to connect a VM running on an ESXi host to that host via a VMKernel NIC?

Say I have an ESXi (5.0) host that runs a Linux distribution which hosts iSCSI targets, which contain the images for other VMs which the host will run. When it's used, I'll start the host first, then ...
4
votes
3answers
496 views

What to look for in a switch with LAN/WAN verses an iSCSI SAN?

I'm setting up a VMWare ESXi 5 environment with 3 server nodes. Dell recommended 2x Force10 S60 switches shared (iSCSI SAN, LAN/WAN). The S60 switches are extremely powerful. They have 1.25 GB of ...
29
votes
3answers
4k views

Tuning iSCSI storage

This is a Canonical Question about iSCSI we can use as a reference. iSCSI is a protocol that puts SCSI commands as payload into TCP network packets. As such, it is subject to a different set of ...
4
votes
1answer
634 views

Dedicated NIC or dedicated port for iSCSI?

When spec'ing and configuring a machine that will utilise shared iSCSI storage, I've read a lot of documentation which suggests a dedicated network adapter should be used for iSCSI communication. That ...
0
votes
1answer
64 views

What could be causing this bottleneck on Nextenta

I have a Nextenta box connected to another Windows 7 machine via iSCSI. It is getting horribly slow average write speeds, but a large active time in the Windows Resource Monitor. The machines are ...
3
votes
1answer
2k views

CentOS Client - Unable to Establish iSCSI connection with multiple interfaces on the initiator

So after upgrading to CentOS 6.2, I am seemingly no longer able to login into my iSCSI targets. I have multiple interfaces on different subnets on the system, and I first thought that it had to do ...
0
votes
3answers
427 views

Dell MD3200i config query

Just a short query: I have a Dell Md3200i setup to serve LUNs to my 2 physical hosts and I'm running vSphere/ESXi v5 with a number of VM's. Is it normal behavior for ALL VM's and LUN's to run off the ...
0
votes
1answer
155 views

iSCSI drive dropping connection

I have a problem at the moment with one of our main shared folders. The network speeds to this drive will suddenly slow right down and occasionally completely stop. The shared folder is an iSCSI ...
1
vote
3answers
785 views

iSCSI RAID 1 on two servers, fail scenario

Imagine I have two servers, each server has two disks in RAID 1. Now I merge the two arrays with iSCSI to one RAID 1 disk. Two questions: Can I do the merging of the 4 disks in one go? I can't image ...
3
votes
3answers
1k views

To LAG or not LAG?

I have a new ex4200 switch stack, my 3 esxi hyper-visors connect to the SAN via vlan 200 which is EST. I have loaded the Equallogic multipathing plugins. When I have the 4 cables per server dedicated ...
2
votes
2answers
3k views

Specifying a preferred route when there are multiple links to same network

I have a server with multiple interfaces and IP addresses on the same network. I would like for non-iSCSI traffic to exclusively use one of the interfaces, and for iSCSI traffic to exclusively use the ...
1
vote
1answer
258 views

Server NIC: Difference between IntelPro MT and PT

What's the difference between IntelPro MT and IntelPro PT server adapter cards? Would one of them be better for iSCSI? Thanks!
8
votes
3answers
6k views

Setup of HP ProCurve 2810-24G for iSCSI?

I have a pair of ProCurve 2810-24G that I will use with a Dell Equallogic SAN and Vmware ESXi. Since ESXi does MPIO, I am a little uncertain on the configuration for links between the switches. Is a ...
1
vote
1answer
1k views

Flow Control - Where do you enable it?

In the testing/playing phase with a bunch of new SAN/Server kit. I have 2 x Procurve 2910 switches dedicated to iSCSI/vMotion (with a 10gbps fibre link between them), 2 x vSphere hosts (each with ...
1
vote
1answer
266 views

iSCSI LUNs on different VLANs

Is there any way to share different iSCSI LUNs on one iSCSI server on specific VLANs? IE lun1 would only be accessible via devices on eth0.3 and lun2 by devices on eth0.4. I'm using iSCSI Enterprise ...
1
vote
2answers
836 views

iSCSI connection timing out on ESX 3.5 against a NetApp storage appliance

I get a timeout on iSCSI on different ESX hosts (3.5) at different times. It is puzzling, as both the ESX hosts as windows and other guests are experiencing timeouts. The iSCSI network is segregated ...
4
votes
2answers
7k views

Setup redundant iSCSI network with 2 switches, SAN and ESX

I am in the process of re-doing the iSCSI network at my work. We currently have the following equipment: 1x Dell PowerConnect 6224 switch 1x Dell PowerVault MD3000 SAN connected to 2x Dell PowerEdge ...
7
votes
3answers
7k views

Recommended switch for an iSCSI implementation [closed]

We want to implement an iSCSI SAN and all of our testing has shown that we can implement this quite cheaply (Starwind target, refurbished HP Storage array). What concerns me is the throughput/latency ...
0
votes
3answers
413 views

1GBit copy throughput, protocol independent

I've a question which bothers me since quite some time now. I have several environments and servers. All of them are connected to 1 Gbit ethernet swiches (e.g. Cisco 3560). My understanding is, that ...