iQStor iQ2850 iSCSI Storage System review

iQStor’s latest IP SAN appliance hits the sweet spot for value, but can it match the rest on features and scalability?

Price
£17,862

Access security is good as CHAP authentication is permanently enabled and must be used on all targets. Profiles allow multiple schemes to be created where each contains a username and a CHAP secret. All hosts can be enabled to access selected VDisks or you can assign them to specific hosts using LUN mapping. You'll need to set up host aliases first and we found it annoying that the dialogue box for this wasn't wide enough so we couldn't see the whole IQN for each server.

Along with array membership, you can designate certain drive bays as global hot spares, which make them available to all arrays in the event of a failure and array rebuilds will happen automatically. Providing there's enough spare space in the pool, VDisks can be expanded at will simply by entering a new value for capacity in GB. Snapshots provide point-in-time copies of VDisks and are created by selecting a source and a pool for the snapshot to be stored in.

The same procedures apply for creating local VDisk mirrors as well. This can prove useful for testing as once a mirror has been created you can split it so the copy becomes a new VDisk that can be made available to your test systems. In the event of a problem or failure a volume can also be restored from its snap-shot by selecting the roll-back option.

The System Manager offers a number of optional storage management tools that are activated with a license. Policies are used to monitor the capacities of VDisks and once a threshold has been breached the appliance will increase them by the selected percentage. You can use policies to monitor an attached UPS and close the system down before its battery runs out and also control the number of spare disks that must be kept ready for use.

Advertisement
Advertisement - Article continues below

For testing we called up dual quad-core Xeon Dell PowerEdge 1950 and 3GHz dual-core Xeon Boston Supermicro servers with both running Windows Server 2003 R2 and loaded with the latest Microsoft iSCSI initiator. We logged both servers onto dedicated targets on different ports and subnets and running Iometer on the Dell server first returned an impressive raw read rate of 113MB/sec. With a second instance running on the Boston system we saw a high cumulative read throughput of 210MB/sec.

To test MPIO we created a single VDisk, assigned it to the first port on the controllers and then logged in from the Dell server initiator using both IP addresses as targets. We had no problems creating a fault tolerant link and during a copy of a 2.5GB video clip to an iSCSI target we disconnected one network cable from the server and watched it continue unabated.

Compared with many other IP SAN storage arrays, the iQStor iQ2850 looks particularly good value even with the current exchange rates. It offers more standard features than most competing products, delivers excellent performance and an amazing expansion capacity.

Verdict

Some storage vendors seem to have forgotten that a key selling point of IP SANs is their value proposition when compared to FC SANs with many charging disproportionately high prices. iQStor clearly isn’t one of these as its iQ2850 delivers an enterprise level feature set with a massive expansion capacity but at a more affordable price.

Chassis: 3U rack

Power: 2 x 460W hot-plug supplies

Cooling: 2 x hot-plug fan modules

Storage: 15 x 1TB Seagate Barracuda ES.2 SATA hard disks in hot-swap carriers

Controllers: 2 x hot-swap

CPU: 1GHz

Cache memory: 1GB expandable to 4GB per controller with battery backup

RAID arrays: RAID0, 1, 10, 3, 5, 50, 6

Network: 4 x Gigabit Ethernet data ports

Expansion: 2 x 4Gbps FC ports per controller

Management: Fast Ethernet port linked to both controllers

Featured Resources

Application security fallacies and realities

Web application attacks are the most common vulnerability, so what is the truth about application security?

Download now

Your first step researching Managed File Transfer

Advice and expertise on researching the right MFT solution for your business

Download now

The KPIs you should be measuring

How MSPs can measure performance and evaluate their relationships with clients

Download now

Life in the digital workspace

A guide to technology and the changing concept of workspace

Download now
Advertisement

Most Popular

Visit/operating-systems/25802/17-windows-10-problems-and-how-to-fix-them
operating systems

17 Windows 10 problems - and how to fix them

4 Nov 2019
Visit/strategy/28115/the-pros-and-cons-of-net-neutrality
Business strategy

The pros and cons of net neutrality

4 Nov 2019
Visit/domain-name-system-dns/34842/microsoft-embraces-dns-over-https-to-secure-the-web
Domain Name System (DNS)

Microsoft embraces DNS over HTTPS to secure the web

19 Nov 2019
Visit/social-media/34844/can-wikipedia-founders-social-network-really-challenge-facebook
social media

Can Wikipedia founder's social network really challenge Facebook?

19 Nov 2019