Does iSCSI need special switch?

Does iSCSI need special switch?

Unlike specialized Fibre Channel SAN switches, iSCSI switches are standard Ethernet networking switches that can be used for iSCSI traffic optimization. iSCSI switches are not even required. When using iSCSI storage, an iSCSI initiator can perform some of the same basic functions a switch could be used for.

What port is used for iSCSI?

3260
The iSCSI protocol is configured in Data ONTAP to use TCP port number 3260.

Should iSCSI be on its own VLAN?

So rule No. 1 in planning your iSCSI SAN is to place iSCSI traffic on its own VLAN and preferably on a completely separate, gigabit-speed network.

How can I improve my iSCSI performance?

Experts suggest deploying high-performance Ethernet switches that sport fast, low-latency ports. In addition, you may choose to tweak iSCSI performance further by overriding “auto-negotiation” and manually adjusting speed settings on the NIC and switch.

Which is better iSCSI or NFS?

The main difference between iSCSI and NFS is that iSCSI shares data on the block level, and NFS shares data on the file level. Performance is almost the same, but, in some situations, iSCSI can provide better results. RDM disks for VMs can be used with iSCSI but not with NFS.

Which technique allows traffic from multiple VLANs to traverse over a single network connection?

A trunk is a point-to-point link between the device and another networking device. Trunks carry the traffic of multiple VLANs over a single link and allow you to extend VLANs across an entire network.

What are two reasons to use VLANs in a Netapp storage solution choose two?

VLANs provide the following advantages:

• VLANs enable logical grouping of end-stations that are physically dispersed on a network.
• VLANs reduce the need to have routers deployed on a network to contain broadcast traffic.
• Confinement of broadcast domains on a network significantly reduces traffic.

How fast is iSCSI?

iSCSI uses standard Ethernet switches and cabling and operates at speeds of 1GB/s, 10GB/s, and 40GB/s.

How is iSCSI performance tested?

To troubleshoot a high latency:

1. Go to DSM > Resource Monitor > Performance > iSCSI (For DSM 7.0, the tab is renamed as LUN).
2. Click Choose Charts.
3. Check Disk Latency and Network Latency, and click OK.
4. You will then discover what contributes to the iSCSI storage latency. Usually it is the disk.

Is iSCSI faster than NAS?

Choosing between NAS or iSCSI SAN is one of the cornerstones of modern data centers. The times when NAS was ridiculously slow to be used as a backend storage are gone….High Availability.