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

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5answers
1k views

HP DL380 G3 2U For Basic Web Server in 2012

I have an opportunity to pick up a used HP DL380 G3 2U for $100. I'm looking for a basic entry level web server that I can host a small - medium size website on and more or less learn the ins and outs ...
4
votes
6answers
493 views

Is it better to have four average servers or one awesome server

Ok, I want to have one high spec server (two quad core processors, lots of ram, raid 5, Server 2008 R2 etc), my colleague wants to spend the same money on four average pre-owned servers (Dual core ...
59
votes
10answers
4k views

How to extinguish a small fire in a server rack to minimize damage to surrounding equipment?

Suppose I have a rack with several servers and other stuff. One of servers overheats severely and either starts smoking or catches fire while there's a serviceman nearby. If anything similar happens ...
1
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2answers
502 views

Scalable Web Application Hardware Topology Best Practice

I'm working with an existing web application developed in Ruby with a MySQL back-end, but I think the generic hardware topology question will apply to a wide variety of server architectures. I'm ...
0
votes
2answers
410 views

Multiple Servers, Multiple Domain Names, One External IP, IIS 7

I have looked through post and web listing, and I am not finding what I need so I will see if I can make some sense here. I should mention I am more of a programmer, and just happen to be doing this ...
1
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1answer
231 views

Converter for input (composite USB) and output (2x PS2)

It seems there are plenty of PS/2 to USB converters but want we need is a composite USB input and 2x PS/2 outputs (keyboard and mouse). An example application: a server without USB ports but 2x PS/2 ...
24
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2answers
15k views

What is the command to flash a NIC link light?

I remember using a command line tool to flash a NIC's link light to identify it. I can't remember for the life of me what it was.
1
vote
1answer
811 views

Bracket to convert half-height to full- height PCI card?

I would like to convert a half-height PCI card to full-height card, so some sort of metal bracket is needed. Does anyone know what such a converter is called?
2
votes
2answers
671 views

SAS drive to SAS/SATA backplane then SATA cables to SAS/SATA RAID card?

I just got a Supermicro chasis: http://www.newegg.com/Product/Product.aspx?Item=N82E16816101241 That has a backplane that supports SAS and SATA drives but the backplane has SATA ports to be ...
0
votes
1answer
37 views

proliant dl 380 g4 outside deploy

I bought a dl380 server and the noise is very high to stay inside my home. Can i deploy the server outside (not in balcony, outside) in a box of metal? I need a specialist opinion because i can lose ...
1
vote
2answers
987 views

What should I check/replace first in response to mcelog “Memory address parity error” / MEMORY CONTROLLER AC_CHANNEL0_ERR messages

I have a server that kernel panics every few days. mcelog tells me: Hardware event. This is not a software error. MCE 0 CPU 6 BANK 8 MISC 0 TIME 1317928482 Thu Oct 6 15:14:42 2011 MCG status: MCi ...
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2answers
265 views

Intel Server Board: Ethernet MT connection vs PM connection

What's the difference between an MT ethernet connection and a PM ethernet connection? Intel server board has two ethernet ports that are named in that manner.
3
votes
3answers
980 views

Best orientation for CPU blower/cooler in 1U chassis

I'm putting together a 1U rackmounted PC. I have a blower cooler for the CPU, but the chassis has no fans at all. What would be the correct way to orientate the CPU cooler? With the air blowing in ...
4
votes
3answers
414 views

Proof that hibernating the server over the weekend is not a good practice

Is it true that the life of the modern server machines is longer if you never turn them off instead of turning them off when not needed? I am talking about database server machines that are not used ...
0
votes
1answer
305 views

Need hardware specification recommendation for a .NET4 WCF service server [closed]

I need a rough HW specification recommendation for a server with the following SW and usage specs: Windows Server 2003 or 2008. One .Net4 WCF service hosted on IIS, or self-hosted. 100 concurrent ...
1
vote
4answers
740 views

Precautions for moving servers across town?

EDIT: of course after asking the question an exact duplicate is shown...I apparently suck at searching correctly...requested close with link. This is more of a curiosity question that could probably ...
1
vote
1answer
558 views

How harddisk works [closed]

Looking at how hard disk works. Found that it has a number of platters and a read/write head. But in texts it shows read/write head between each platter. Is it like that in real situation? Also ...
2
votes
4answers
4k views

Swapping out a RAID 1 mirror with larger drives on SBS 2008. Is it possible?

My organization previously set up an SBS Server 2008 on a Dell T300. This was a small setup with 2 x 160 GB disks in a RAID 1 mirror. We are running short on disk space. I would like to extend the ...
6
votes
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 ...
0
votes
1answer
144 views

5Mill Users: how much hardware? [closed]

I am working on a project and we expect about 5 Million Users per day. It is a litte web application, written in php and we are currently using Apache to serve the requests. My problem: I don't know ...
0
votes
4answers
135 views

Buying a Server vs Hosting on a Datacenter

I'm planning to host a website. It would be a photo-sharing website. I'm trying to find out a server that I should buy to put the website online. The website is in Apache PHP. I'm assuming the ...
9
votes
4answers
25k views

Controlling HP ProLiant DL380 G6/G7 fan speed

I'm having fan speeds and noise level issues from my most recent batch of HP ProLiant DL380 G7 servers. Most of the systems are nearly silent with low fan speeds (as reported by hplog -f). The ...
0
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2answers
2k views

Can I configure a RAID 1 on the Dell Poweredge 860 with the onboard SATA Controller

Is there a way to set up a RAID 1 with two SATA HDD on a DELL Poweredge 860 that has no specific RAID Controller? I want to use the on board SATA controller to set up my RAID 1.
3
votes
2answers
317 views

Upgrading CentOS Server Hardware?

My (postfix) mail server currently runs on an old PowerEdge 2650 and it badly needs a hardware upgrade. I would like to put it on an 8 core (3rd Gen) 2950, but have no idea how to go about changing ...
2
votes
2answers
633 views

Hard Drive Effects of Continuous Delete and Rewrite

What are the effects of continuously writing and deleting files on a magnetic hard disk? Specifically, do these files continue to be written on the recently cleared space or is there some sort of ...
1
vote
1answer
351 views

is there any conflict between HP blade system ProLiant BL680c G5 hardware and Redhat Linux Enterprise 5.5 or 6

We're going to install Linux Red Hat enterprise 5.5 on HP blade server that is connected to a part of SAN storage MSA 2000. I've tested both marked and unmarked sda option in partitioning. I did this ...
1
vote
2answers
825 views

NSLookup very inconsistent, slow, failing. Not Hardware error or OS Error. Can't identify problem

Multiple computers inside the network run various OSes, and connect through Wi-Fi or Physical connection. My desktop runs Ubuntu 11.04 64 bit, and has consistently slow or failing NSLookups. I bought ...
0
votes
1answer
56 views

Optimum size for nodes in a virtualization cluster [closed]

I'd like to get some advice on what factors influence the decision of how large (in terms of resources) you would decide to size each node of a virtual machine cluster (VMware, Xen, etc), and in what ...
0
votes
1answer
185 views

Can't access BIOS - (NEC Express 5800 140hd)

When i try to enter the BIOS pushing F2 when asked ("Push F2 to enter...") i can see "Entering the BIOS..." for 3 seconds on the screen and then my server continue to start normaly. (notice: i can ...
2
votes
1answer
75 views

Point in which server (machine) efficiency drops, cores and ram

If a server is going to run virtual machines on it, each with 2 cores and 3gb RAM, is it more efficient (processing-power-wise, not in energy costs or parts cost) to run one huge server with quad 20-...
2
votes
1answer
1k views

Does there exist a short range wireless router, or are all 2dBi?

When I look at specs for wireless routers, then I either can't find the signal strength or it is 2dBi per antenna. I am looking for a short range (low antenna dBi) and low throughput (transmitted ...
0
votes
1answer
177 views

How to read HP's manual about ram modules?

On page 48 in this user guide, it is explained in which order memory modules should be installed for an HP DL385 server with AMD Opteron CPUs. There are 12 banks per CPU, and I have 6 x 4GB + 2 x 2GB ...
1
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1answer
669 views

SAS controller on Dell power edge 2950 server

My knowledge on Dell server is growing daily, however there are many areas where I still require assistance. For example, Our institution recently purchased a LT2000 tape library system. This also ...
7
votes
3answers
677 views

determine hardware configuration using command line

I have a linux machine with ubuntu OS installed on it. Now I want to upgrade the hardware. Namely, I'd like to install more RAM. My question is, how do I determine which kind of RAM installed now, ...
12
votes
2answers
6k views

Alternatives to Dell's mirrored SD card module for booting a small OS from flash?

Dell offers an add-on hardware card for some of their servers that provides a poor man's RAID1 between two SD cards (one card gets all the reads until it dies, writes are mirrored) for booting a ...
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votes
2answers
251 views

heatsink holder on motherboard cracked [closed]

I have an old Dell Poweredge 830 server. I just moved about 250 miles, and in that process broke something in the server. After some issues with the CPU fan not slowing down I realized that one of ...
4
votes
2answers
652 views

Proliant ML370 G5 and “dongle” removal

Recently I've bought a Proliant ML370 G5 in tower case. After I got it the seller asked me to remove the "dongle" from it and return it back to him. The problem is I can't locate the "dongle" thing in ...
1
vote
1answer
1k views

How to enable SATA in Centos 5?

I have a centos 5 linux box which is currently running off an IDE drive. I want to install a couple of SATA drives as backup drives for now. I have googled that there can be complications with SATA ...
2
votes
1answer
108 views

Network-capable small format display? [closed]

I am working on a project for per-station messaging and other functions in a warehouse. I don't want the cost of a full computer at each station, so I'm looking for small format hardware that I can ...
0
votes
1answer
208 views

Slow network performance when I open files from a local network server [closed]

When I try to open a file from a network share, the file takes much longer than expected to open. It will eventuallly open, but is very slow I have restared both the server and my local computer, ...
4
votes
3answers
1k views

Control CPU fan speed on Dell PowerEdge 830 server

I have a Dell PowerEdge 830 server that has been operating as my file server for a few years. I had never had a problem with it, and it been sure to install all BIOS updates. A few months ago I ...
15
votes
5answers
11k views

Linux hard drive serial number as non-root

First of all, I would like to apologies for the title for not including hardware details. This is because I am looking for a command that will work in all Linux distribution. Question: I am very ...
1
vote
1answer
2k views

Hard Drive (Failure) IBM x336, Diagnose and Fix RAID-1 & Configure IBM Software

A year ago I was given an old IBM x336 server to run some personal projects on, now I knew nothing about servers at all so just put some more RAM in, wiped and disks and installed Ubuntu Server on it ...
0
votes
1answer
152 views

How much Memory supported By Intel Xeon 5506

I want to buy a HP DL160 server which using XEON 5506 CPU. The supplier told me that only 6 memory item support for each CPU. I have read the DL160 specification which said a maximum of 144G memory ...
1
vote
1answer
287 views

Is it possible to use server PCIe cards/PCIe RAID controller on desktop motherboard?

I've found myself in possession of a MSI 785GT-E63 motherboard. I need to put a PCIe x8 RAID controller on it, but the x16 PCIe slot is certainly originally intended for graphics cards. Would putting ...
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votes
3answers
238 views

Email server hardware configuration [closed]

I am running email exchange in a low end server and I feel its the time for me to go for a high end server. This time I want to upgrade my server such that it must withstand for 1,000,000 users. I ...
4
votes
3answers
1k views

Linux only seeing one disk of 4-disk eSATA enclosure

I recently purchased a 4-bay enclosure (Mediasonic Probox -- maybe cheap junk, but should work) with 4 2TB disks. The enclosure has both USB3 and eSATA interfaces. I originally intended to use it on ...
1
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2answers
272 views

When ordering SAS replacement drive, does the hot swappable enclosure matter?

I have a dell PowerEdge and need to replace one of the SAS drives in it. I noticed the supplier I order from does not sell a specific "DELL" SAS replacement drive, but they have what appear to be ...
8
votes
3answers
5k 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)?
4
votes
4answers
7k views

Which RAID solutions can handle 2 disk failures

Our of RAID 0-5 and RAID 0+1 and RAID 1+0 which ones would be able to handle two disk failures at the same time? I have read online that RAID 0+1 can not handle this Also from my research it seems ...