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Rack Servers are, as their name suggests, servers that are mounted on racks inside a data center. Racks vary in size but most are 19” wide and 45 U’s tall. A “Rack Unit” (RU) or “U”) is a vertical measurement of 1.75” (44.45 mm). Racks contain bays or multiple mounting slots, each one designated to hold a hardware unit attached securely in the framework.
Rack Servers exist as a low-profile configuration as opposed to more upright tower servers built into a previous vertically standing cabinet unit. Efficient and time-saving, Rack Servers consolidate network resources and minimize square footage. IT Central Station IT key opinion leaders find measurable ROI by deploying these versatile and economically feasible additions to essential business workloads, with agility and scalability.
IT Central Station IT experts are looking for quality components when configuring Rack Servers. It is essential for a Rack Server’s configuration to have simple cable component connectivity. It must have a special cooling system for excessive heat buildup when squeezing so much into such a confined and limited space.
Many infrastructure managers value server density as a quality of rack servers. Density refers to the amount of compute capacity that can be placed on a single rack. This may be measured by processor cores per rack or compute cycles per rack. It’s a constant balancing act, with the desire for density being offset by the realities of heat and energy use. The more compute density in a rack, the more heat it generates (and the more cooling it will require) and the more energy it will consume.
IT Central Station experts are motivated to vertically scale Rack Servers, which adhere to an IEEE IT standard. They are configured in multiples, as loaded but compact physical servers. Rack Servers deliver an opportunity to install many other IT devices within the structure, which also adhere to the IEEE standard, such as SAN devices, Power Backup devices, and Rack Consoles. The addition of Rack Servers adds value to an IT team as hardware vendors are providing software tools to help teams manage servers and often the devices themselves.
Rack Servers Reviews
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Help Systems is a provider of IBM i and AIX systems management software. We use the server in our infrastructure to develop technology to solve customers' problems in automation. We're using POWER7 and POWER8 servers, highly partitioned,... more»
I think the main thing that POWER8 is doing for the industry in general is it's leap frogging all the other technologies that exist out in the market from a performance capacity and total cost of ownership point of view. You can scale these... more»
With POWER it has everything that we need from a scale up and scale out capacity, capability to stick lots of work and footprint on it. For IBM, the challenge that everybody has in the industry, and in the processor world, is that we've kind... more»
What is good about HPE servers is that you have a consistent way and how to manage them across all the lines. You don't have to learn something for one type of server and then have to learn something else for a different type of server. If... more»
The organization is always hamstrung by the staff people they have available to run these systems. If you have a trained staff, you don't want to throw all this training overboard just to get a new server. You have an evolving but steadily... more»
It's always the next generation of hardware, of course: Who does the better job? You also can look at things and say, "Hey, we were going all blades. We were going with virtual connect.”, and do specific things in that way. We learned certain... more»
The virtualization. Power was the first solution to have it. Now everybody does virtualization, like VMware, etc. But Power was there a long time before everybody else. We virtualize everything, we're about 95% virtual. The virtualization and... more»
I think the biggest driving factor for the bank is the cost, the cost-performance profile, it's better than anything else. If you virtualize, Power hardware allows you to oversubscribe CPUs, and we take a big advantage of that for the bank.... more»
Regarding new features, we like where it's going. I really can't think of something newer that they are not currently working on. Except for Power on Linux. The licensing for software products, including IBM's products - it costs you more to... more»
From a reliability standpoint it has provided us with excellent performance. We are in retail and we can't send technical people out to retail locations. We have to have a system that is very reliable, that will basically run 24/7, 365. In... more»
We are a special case, because what we want is the cheapest Power box we can get in all of our locations. That is not the way the industry is moving. Cloud would be a great option, if you didn't get the worst internet connections in the world... more»
It allows us to share the resources with multiple lines of businesses. That's one issue we had with one line of business, purchasing a physical server then it would be dedicated to that line of business. There would be one OS on it so a lot... more»
I think IBM needs a little more work on managing the overall environment with eliminating Systems Director. They need something that you can use to manage the entire environment; it's kind of where they're going with PowerVC, but with the... more»
Specifically about System i, it's simple, it's secure, it has a lot of resiliency. As far as I know, we've never been attacked by a virus. I've been supporting core banking for the past 15 to 20 years directly in Power, and before I was... more»
Security is one. But it's a total, comprehensive solution. It's really good for banking. As a matter of fact, I know many banks that are using AS400s as their back end on Power. It scales a lot, you can just keep on adding frames, you can add... more»
IBM could perhaps be a bit more aggressive in terms of marketing, and let customers really know that they're out there and can offer a helping hand to move them along, to implement all these great features. Because, in attending the classes... more»
In referring to the Apollos, what we liked about them was: * A combination of the density * The flexibility to run dual CPU nodes or add GPUs to other nodes * Absolutely being able to mount into Omni-Path architecture, HFIs on those nodes,... more»
A primary benefit is high reliability. They have very good price performance and configuration options. Being able to configure them in different ways, for different node types, was something we needed.
I think it's on a good track. What's coming out in Gen 10 is very strong in terms of additional security. Overall, I think those are well architected. They're a very flexible form factor for scale-out. Assuming ongoing support for the latest... more»
We've got a whole lot of DL380's which are the standard 2U server. We've been switching more over to the blades using the BL460's. But, the ProLiant line all along just works, they're tanks. About the only thing we've ever had to fix is drives that go bad after a while, but usually that mostly happened after a heat incident. They just run. We've got some that... more»
For certain applications that we have to have for external connectivity it runs great. Our main security system has one of these little USB dongles that starts off the back end, I could make it on the blade, but then it'd block up one blade, so having a DL380 is great for us. It does everything we ever need.
We actually install Scality on the Apollo servers and so we have a ring, a Scality ring, where we store our customers' documents. That allowed us to migrate away from traditional NAS with a cost effective solution whose architecture is both... more»
Just not having to manage traditional NAS has made a big difference. Not having to manage traditional volumes and aggregates and LUNs and things like that. Being able to be flexible when it comes to that, and Apollo has made that possible.
We're pretty happy with the Apollo line of servers. It would be interesting to see the new hyper-converged DL380s. It would be cool to see if that type of same thinking about hyper-convergence was applied to the Apollo line of servers as... more»
Independent Analyst and Advisory Consultant at Server StorageIO - www.storageio.com
What do you think of HPE Moonshot?
Riding the current software defined data center (SDDC) wave being led by the likes of VMware and software defined networking (SDN) also championed by VMware via their acquisition of Nicira last year, Software Defined Marketing (SDM) is in full force, along with Software Defined Data Infrastructures (SDDI). HP being a player in providing the core building blocks for traditional little data and big data, along with physical, virtual, converged, cloud and software defined has announced a new compute, processor or server platform called the Moonshot 1500.
Software defined marketing aside, there are some real and interesting things from a technology standpoint that HP is doing with the Moonshot 1500 along with other vendors who are offering micro server based solutions.
We value the ease of management in terms of the firmware. The hardware is very toolless to work with, so when you have to do a part replacement it's very hands-on friendly. You don't have to grab any quick tools nearby to swap out modules and... more»
The layout is quite nice as, for the most part, you don't have to tear the machine half apart to get to a piece. So, sometimes when they have on-site technicians to replace a part, we don't have to send a senior technician out there to do it.... more»
I've already seen quite a bit here at the conference that looks good. Well, one of the areas that I really am excited about is the iLo 5 (integrated lights out technology) on the HP blade technology where they're allowing a lot of the... more»
* Its ease of use. The GUI is accessible and everything is pretty much upfront. You don't get lost in navigating between the tabs. * I also like a feature they call iDRAC. It's a feature that allows you remotely power on and off the server. *... more»
Compared to the older versions, and those from other vendors, like HPE servers and some other brands, this one has really saved us a lot of headaches when it comes to hardware replacements. It's something it seems that Dell has improved. You... more»
Of course, the new generation of servers, I've yet to really use them, the 13th and the 14th generations of the Dell rack servers. I haven't gotten my hands on those yet. But as for the versions that I work with, they used to max out on... more»
Power runs our resilient data systems, our high-end databases, stuff that can't go down. I enjoy the isolation factor, that it's not Linux, but then again it can be challenging to keep up. The Linux and VMware stuff, the administration seems... more»
Right now we use Power for high-end AIX systems. We're always looking to leverage what we're using. We have some high-end customers on our P8s. The one thing that makes life easier is it's very dependable.
Licensing has always been an issue, but with IBM machines a serial number is licensed with support. If you don't pay for it, you don't get it. I would like to see firmware available to all of the systems. We have some older systems that we've... more»
I can get more work done with less hardware. The SMT that they've improved has really helped open up boundaries for other applications that can use it. The ones that can't, they're still single-threaded, still waiting on the CPU cycle.
I don't know yet. We have got scalability, resiliency. We can move it from one system to another. Licensing is always going to be a problem, because it used to be based on, "This is a CPU, this is the memory, this is your footprint." Now,... more»
I like the processor speed. I don't think that there's a match for it out there. I like the use of the Hypervisor and the VIO functions that you can utilize. I just don't think that there's anything out that matches it, and it's easy to... more»
The flexibility of it, being able to run multiple OS's on it. I can run Linux on it, I can run i on it, I can run AIX on it, and it's all on the same physical hardware. Being able to do that, it just gives us a lot of flexibility in that area.
I know that they are doing a lot with Linux, so maybe a more direct way of converting to Linux on some applications; some way to actually sell it a little bit better. Because you still get into the expense of going to the Power hardware, but... more»
Director of technology at a tech services company with 1,001-5,000 employees
Nov 20 2017
What do you think of IBM Power Systems?
I am happy with the performance. Now that we are moving to Linux on Power, I'm really surprised at how fast it is, compared to AIX, seeing them side by side. Linux doesn't have all of the wrapping around it that AIX does to provide various security measures and things of that nature, so it can run much faster.
• Room for Improvement
The improvements that I would like to see are probably the same as what everyone else wants, more speed, less electricity and less HVAC required to run it.
• Use of Solution
We have been using POWER8 since it came out in 2014. We are using POWER8 and POWER7. We are really off of six at this point. I am just waiting for POWER9 now.
• Scalability Issues
Well, from what I have done with it, it's pretty nice and very easy to...
The hardware keeps getting better. We're hoping for a POWER9 announcement here so we can try to roadmap what we're going to buy next. The backups work great, data recovery works great, and as far as customer innovations, they can connect to... more»
POWER8 was a huge upgrade. I think we had POWER6s before, and just the I/O and getting the information we need faster to the customers. We had a little saying of "one click, two seconds," get them what they needed, and POWER8 helped us get... more»
That's why we came to the IBM Power Systems and IBM Storage Technical University conference, to see what's coming next, to see what we can maybe take advantage of. Speed. Everyone likes speed. Not that speed has been an issue up until now but... more»
VP and client leader at a tech services company with 1,001-5,000 employees
Nov 09 2017
What do you think of IBM Power Systems?
PowerHA, the high availability software. That is something that we like.
• Improvements to My Organization
We are a partner to IBM, we do product development for IBM. We're not a customer of Power Systems. We are developing only on AIX and for all versions of Power, 6, 7, 8. It helps in delivering mission critical applications, very high reliability. It doesn't fail, it's a very stable platform, very reliable, and the user interface is good. The administrative cost and expenses are also low. It's good.
• Stability Issues
Very stable, absolutely. POWER9 is expected in the market and that's going to be, I would say, revolutionary. It is going to turn around the market in terms of the market share, in favor of Power Systems. I would say that if the price...
It's very hard for a professor to amass the supercomputing resources, so I've been very fortunate to have that level of supercomputing at our disposal and that has really enabled us to do the world's leading superhuman AI research. That is... more»
We have been working with the Pittsburgh Supercomputing Center for around ten years. They are picking the hardware and they had picked this hybrid system. It has several different kinds of components in the system and we had worked with them... more»
One thing that we are looking for is the better stability of the Lustre file system, it could be improved. I have heard that they are coming out with a better memory bandwidth, so that's good or maybe, it's already there in System 10. In that... more»
These servers have been real work-horses. Dell has done a nice job at including more management tools, with OpenManage and the likes. The DRAC Enterprise is an amazing feature, especially when managing decentralized server farms.
One of the main factors in helping efficacy is having like-branded servers, which have compatible tools. There are are more universal management tools out there, but they are generally pretty costly. The fact that the servers have generally... more»
Unfortunately, I am now more in the space of IaaS, so I am a little bit removed from that particular area. In my experience when I was actively using Dell's servers, they were always improving their hardware, and coming up with more efficient... more»
IBM Power Systems and HPE Proliant DL are two of the most popular enterprise rack servers in the market, but what do real users think about these solutions? Our user community tells it like it is, so you can learn what they love about these rack servers, and where they see room for... more»
Chris ChilderhoseVery interesting comparison from each vendor as well as review scores.
Greg Schulz is Founder and Sr Advisor of the independent IT advisory and consultancy firm Server StorageIO (StorageIO). StorageIO provides advisory and consultancy services in and around data infrastructure, cloud, virtualization, container, software-defined, NVMe, flash, object storage,... more>>
Information Security Advisor, CISO & CIO, Docutek Services
About my business:
Docutek is a leading business and technology consulting company specializing in the development and implementation of healthcare technology since 2008. We deliver Consulting, Integration, Support and Training. We also provide clients with security assessment. network... more>>