Computer hardware is the collection of physical elements that comprise a computer system.

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What to do with an out-of-warranty Barracuda Spam/Web filter?

I'm working with an organization that would like to start using a old Barracuda Spam Filter 300 unit. I've sold and configured plenty of these, but was surprised to see that this unit's warranty ...
7
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6answers
381 views

Computer controlled winch

It was a long time coming but I've just had AC installed in my server room. I've also purchased a MiniGoose II from ITWatchDogs which I can't say enough about. So I'm covered by cooling, and I'll be ...
7
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3answers
985 views

What is the name of this screw? (from HP ProLiant quick-deploy rail kits) [closed]

I need the name of the screw for the HP quick deploy rail kit. The screw clicks into the square holes of the rack. It is a Gen4 Rail kit but the screw is like the Gen8 Rail kit ones. I called HP ...
7
votes
1answer
855 views

Enabling VMware EVC on Westmere E5645 CPU only accepts “Nehalem” mode

Take the following system, a Supermicro VMware ESXi host with Intel Westmere E5645 CPUs. Part of our deployment process is to set the appropriate Enhanced vMotion Capability (EVC) level for the ...
7
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2answers
492 views

10GBASE-T shielded cable switch-to-server connection

I'm venturing for the first time into the 10 gigabit (over copper) realm. Likewise, I have never worked with shielded CAT-5/6 cables previously. From my own research, I understand the types and ...
7
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1answer
117 views

Automated hardware testing of HP servers?

As part of provisioning servers we run HP's Insight Diagnostics to test the hardware. This is a manual process. Is there a way automate the running of Insight Diagnostics? There is the hpdiags ...
7
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2answers
3k views

HP ProLiant system preparation/deployment techniques (Array, BIOS, firmware, etc.)

I spend a lot of my time with HP ProLiant systems and Linux installations. Due to the nature of the business I work in, I don't have the luxury of being able to deploy large numbers of identical ...
7
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1answer
4k views

hardware recommendations for HAProxy for a small or medium traffic site

I am interested in setting up HAProxy for use as a load balancer for a set of small traffic web applications. The use is growing and might become medium sized in the near term (6 months or so). Mainly ...
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5answers
2k views

How does a blade server differ from a normal rackmount server?

This may be a question but I thought I would ask even so.
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9answers
2k views

Off-brand laptop batteries?

I tend to err on the side of paying too much for quality stuff, but $180 for a standard replacement battery for a Dell laptop makes the $80 knockoffs look pretty tempting. I wouldn't consider it ...
6
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9answers
2k views

Do I need some kind of power conditioner or UPS?

In one of my boxen, both my power supply and network card died while in overnight hibernation - why? And: What must I do to appease the electricity Gods so that I don't lose more hardware? In ...
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7answers
1k views

Laptops - RAM vs Disk for performance

In the perfect world I could get everything I want, however budgets for new laptops are low so I normally can get a user a laptop + additional RAM (to at least 4Gb). This has been mostly motivated by ...
6
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3answers
3k views

What is more important for a database server? Mem? Mem speed? Cores?

I am going to be moving my database server to somewhat better new hardware. The current database server does not have any problems except that it is running Centos 4. The current hardware is 2 quad ...
6
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5answers
16k views

How do I get my HP servers to email me when a drive fails?

Ideally, with as simple of install as possible and without requiring rebooting the servers. Mostly for DL380 G5's if it helps. Thanks.
6
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2answers
873 views

Noob question: What is inside a server? [closed]

This is a real noob question. I have never taken a proper look at a server. Can someone kindly explain what is inside a server (the hardware)? And how the user interacts with it? All the images ...
6
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2answers
274 views

Should server spare parts be stored in climate controlled storage?

What is a best practice for storing server spares (hard drives, RAM, power supplies, etc) with respect to how/where they are stored? Some options are storing them in climate controlled storage or just ...
6
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1answer
291 views

What is this(server hardware)?

What is this adapter called?
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3answers
26k views

ECC chipkill errors: which DIMM?

We often get DIMMs in our servers going bad with the following errors in syslog: May 7 09:15:31 nolcgi303 kernel: EDAC k8 MC0: general bus error: participating processor(local node response), ...
6
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5answers
3k views

SW SSD Raid 1 over HW RAID 10

A provider(data center) recommended I go with 1TB SSDs in a software RAID 1 over HW RAID 10 with mechanical drives. Their quote: Typically SSDs are most reliable than RAID cards and since you ...
6
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2answers
434 views

Could SpinRite possibly be messing up my laptop hard drives?

Context: We have a midsize business with a few dozen laptops. Whenever we get one in because someone leaves or gets an upgrade, standard procedure is to zero and then run SpinRite (level 4) on the ...
6
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3answers
386 views

Why Do Hard Drives Fail?

I'm just quite interested in the reasons why hard drive failures occur. Some people say that it's because it was handled poorly during the shipping and transportation processes while others say that ...
6
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6answers
487 views

Will wear induced by turning computers off in the evening be offset by energy savings?

I'm asking this here because this is primarily a huge office scenario and administrators will more likely have the answer I'm looking for. Employees' desktop computers can be either left turned on ...
6
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2answers
7k views

Dell Perc 6/i and 3TB drives?

Does the dell Perc 6/i controller support 3TB drives?
6
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2answers
5k views

How to find out PCI version information in linux

How can I find out which PCI version (2.0 , 2.3) are supported by the motherboard - even for slots which do not have any cards connected to them. lspci -vvv does not seem to show information for PCI ...
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10answers
257 views

Should you replace a whole department's PCs or half?

Our department are replacing the PCs that are over 3 years old. However, despite the age of the PCs, they're all similarly spec'd, so a 3 year old PC is still the same similar spec as a 1 year old ...
6
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3answers
655 views

Would unplugging a drive simulate a drive failure?

I just set up a RAID 1 array, 2 2tb drives mirrored. I am wondering what will happen if one were to fail. Would unplugging one of them be a valid test? I am using the Onboard controller of an asus ...
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2answers
4k views

How long should rebuilding 250GB take? [closed]

In a PowerEdge 1900 have I a hardware RAID 5 of 5x250GB disks + 1 hot spare 250GB. Disk 2 have errors, so I forced it offline in the raid bios to replace it. Now it have been rebuilding to the hot ...
6
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1answer
1k views

interpreting stickers on RAM

Does anyone know how to read the labels on RAM? Or have a link to a good resource for reading the labels? Here's why I'm asking: I have a third-party Dell server in my rack. The vendor sent us ...
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3answers
4k views

Is it possible to hardware accelerate LUKS encryption?

My Linux server spends a lot of time computing LUKS encryption. Is there any way to hardware accelerate it (with a PCI express card for example)?
6
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2answers
2k views

Hardware requirements for a Virtual Server

I moved this question from StackOverflow because it makes more sense to have it here We have decided to go with a virtualization solution for a few of our development servers. I have an idea of what ...
6
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2answers
222 views

Oracle: 1 Large Server vs. 2 Smaller Servers?

We are in the planning stages of setting up our production Oracle 10gR2 environment. Our budget gives us the ability to buy 2 processor licenses of Oracle DB Standard Edition. We have minimal ...
6
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4answers
364 views

What should I watch out for in building low-budget storage servers?

I'm looking to replace our current storage. The existing system is just a 450GB file share on our 7yr old domain controller, plus another 150GB from another server. We map these to drives on the ...
6
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8answers
969 views

Free Tools for Hard Drive Diagnostics [closed]

Are there any free tools available to perform hard drive diagnostic? I have an old 3.5 IDE Samsung HDD which I use as an external drive through USB connection. I recently started to have problems with ...
6
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2answers
46k views

What is the difference between RDIMM vs UDIMM

I don't quite understand the differences between the two besides the obvious price differences. What does each offer over the other?
6
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4answers
9k views

Restarting an IBM BMC without restarting the server itself

I have a few servers with IBM BMC (Baseboard Management Controller). I'd like to power cycle the BMC without restarting the server. Is this possible? How? Note: On one of them, the web interface is ...
6
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2answers
2k views

Hadoop disk fail, what do you do?

I would like to know about your strategies on what to do when one of the Hadoop server disk fails. Let's say, I have multiple (>15) Hadoop servers and 1 namenode, and one from 6 disks on slaves ...
6
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4answers
424 views

What is a a good serial-to-USB adapter?

Serial ports on devices are still used for many things, especially on network devices. However, most modern laptops no longer have serial (aka "COM") ports. So what I'm curious about is: what is a ...
6
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4answers
821 views

Hardware needed for receiving and recording videocalls in Asterisk

I'm planning an Asterisk configuration that should record videocalls and then feed it to an application. From what I've researched, it seems like app_h234m is the way to go. But it's not clear to me ...
6
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1answer
565 views

Ideal way to deploy SSL to blades/chassis

I have about 14 Dell M1000e chassis and corresponding 224 blades. I just received a wildcard SSL cert, but don't want to manually visit each administrative page to upload the cert/key. I understand ...
6
votes
1answer
1k views

Are keys for HP ML 150 G6 chassis all the same?

Recently we dragged a heavy box next to the HP ML150 G6 Server which had a chassis bezel key sticking out of it. So the bezel key broke in half. Is it possible to buy just a replacement key or they ...
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9answers
4k views

Why DELL PowerConnect and Juniper are so rare ? Why do enterprises stick with Cisco? [closed]

I have a little question, I'm actually studing IT in France, and when looking on alternative on the very [...] very expensive Cisco equipments, I've found Juniper and DELL PowerConnect pretty ...
5
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7answers
1k views

How do I lubricate a noisy fan?

I have a case fan that can be quite noisy. I can take the fan out of the case, peel back the sticker on the center to expose access to the bearings, and lubricate the fan. Thus far, I've been using a ...
5
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13answers
2k views

What are the Benefits of Server Hardware? [closed]

What are the benefits of using Server Hardware versus just placing server software on top of Desktop Hardware? I've been running a small time webserver for a couple of websites, a blog and a ...
5
votes
5answers
7k views

What hardware do the Google servers use?

What kind of hardware does Google use? Exclusively Intel processors? Always? Xeons, Duos, or Quads? Intel chipsets? motherboards - Intel, Gigabyte, MSI? What kind and build of RAM? What physical ...
5
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2answers
3k views

How to reset password for HP Proliant ML330 G6

We have HP Proliant ML330 G6 and its BIOS is closed with password. Password is already forgotten and we can't get there. Is there any way to crack or reset a password at this box?
5
votes
3answers
13k views

Moving a RAID array from one machine to another

I'm not too familiar with RAID arrays, but I plan on making a RAID 5 array for a fileserver. However, once I get the RAID running for a while, I have plans to move it to another machine (with ...
5
votes
2answers
172 views

Power on machine when there is power?

Is there a solution for powering a machine back on after power loss once the power is back on? I could use wake-on-lan, but if there is a solution (software or hardware) to automatically power-up once ...
5
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8answers
7k views

Hard Drive Speed: RPM vs. Cache

When trying to choose a SATA magnetic hard drive (not SSD) for high performance for both random and linear access, which should be the primary factor? For example: would a 10k RPM drive with 16MB ...
5
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4answers
803 views

Which CPU configuration for new servers (IIS7 / Windows Server 2008)?

I have a certain budget for ordering a couple of new servers from a vendor. The new servers will run Windows Server 2008/IIS 7 with a lot of web sites (ASP.NET and classic ASP). They don't have to ...
5
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6answers
3k views

What are the benefits of XServe hardware and Mac OS X Server?

Are there any distinct benefits to going with Xserve hardware and OS X over standard Dell / IBM servers running Windows Server (2003 or 2008), are there any tasks they are reputed to be better at?