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

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9
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4answers
23k 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
votes
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
313 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
613 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
341 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
794 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
54 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
176 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
74 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 ...
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
175 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
vote
1answer
661 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
675 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 ...
-2
votes
2answers
248 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
646 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
10k 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
273 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 ...
-3
votes
3answers
228 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
vote
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
6k 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 ...
0
votes
2answers
216 views

Starting a datacenter [closed]

I know maybe here isn't a good place to ask, but I'm about to start a little datacenter (hosting domains) and also hosting dedicated servers. [I don't know anything about server details] (and also i ...
1
vote
1answer
2k views

What are DFSR's hardware requirements?

I'm currently looking into implementing DFSR, with the following setup: 2 Offices in the US 2 Ofices in Europe The offices are currently using a NAS where I just copy stuff when needed, and have VPN ...
1
vote
1answer
210 views

Solaris: Good Book for metastat?

Does anyone know any good book(s) on learning the ins and outs of Solaris's SDS (Solaris Disk Suite) and its corresponding commands (metastat, metadb, meta*)? I'm looking to invest some time into ...
7
votes
4answers
7k views

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 ...
10
votes
1answer
6k views

Recommendations for Elastic Search hardware [closed]

Are there any good guides for hardware level to support ElasticSearch? Are recommendations for Lucene or Solr a good place to start? We're looking at rolling out a deployment starting with 27 ...
0
votes
1answer
360 views

What can I do about the 2 SATA harddrives no longer showing up even in BIOS?

I've been trying to setup Ubuntu but have been running into countless issues. Both the 500GB drives has now become undetectable and don't even show up in BIOS. I've detailed below the process I've ...
0
votes
1answer
85 views

Where could I source the hardware components to create a (commercially viable) embedded Linux / BSD appliance? [closed]

I'm looking to pilot an Enterprise Linux / BSD appliance in the field and would like to have a 'few' options when it comes to hardware, I haven't had much luck finding hardware solutions (but I'm ...
2
votes
2answers
126 views

Which tool: graph business services and their technology dependencies

I'm looking to give our company an overview of the business services that IT offers and their various dependencies. The purpose of this graph would be to show the dependencies of technology on ...
2
votes
1answer
2k views

LaserJet M1522nF firmware was corrupted during the update

I have a LaserJet M1522nF, and the problem when I working on is that it is freezing every time so I decide to update the firmware. During the updating the device was down because of electricity so I ...
-1
votes
1answer
77 views

Migrating a raid array into a new case on the same hardware

I'm transferring my current server's guts into a new, rack mounted, case. Not changing any of the hardware - just taking it out of its current tower, and dumping it in the new box. System specs ...
1
vote
1answer
133 views

PC Replacement schedule

In the past, I have simply waited for a hard drive failure to replace a PC. A friend pointed out that perhaps this was not the most optimal strategy, since it involved downtime, panic and ...
1
vote
1answer
62 views

Which controller should I buy for a SCSI-3 tape drive? [closed]

I have a HP StorageWorks Ultrium 960, which have a SCSI-3 interface. It is a quite old tape drive, so which SCSI controller should I buy? Update It is for PCI or PCI-X and the server is running ...
0
votes
1answer
1k views

ESXi onboard SATA passthrough Solaris vm cannot see disks

Usings an Asus Z8NA-D6, Xeon 5200... I believe they're on the HCL. Attempting something similar to this: http://www.napp-it.org/doc/downloads/all-in-one.pdf ESXi 4.1 U1 as hypervisor Hypervisor ...
1
vote
1answer
641 views

IO and bus errors on Ubuntu Server

I've got an old computer running Ubuntu Server 10.04, which acts as router, file server and web server. A couple of weeks ago I inserted a PCIe video card, since the motherboard did not have any video ...
1
vote
3answers
5k views

linux freezes - how to find out if hardware or software is the cause?

a couple of weeks ago, my linux server (kubuntu 10.04) started to give me trouble. it freezes after a certain uptime, seemingly between a couple of minutes and a few hours - GUI is unresponsive, no ...
4
votes
6answers
4k views

A computer in a dusty environment (factory)

We have a computer in a dusty environment. Worked for more than a year and then PSU died, probably because PSU fan wasn't cooling enought good. I tried to rotate the fan by hand and it was rotating ...
1
vote
2answers
1k views

Change a serial number on a motherboard…or at least for dmidecode

Is there anyway to change the serial number that is output in dmidecode if there is no option in the BIOS to change it. For some of our servers that have replaced motherboards its hard to keep track ...
0
votes
1answer
321 views

D-Link DMC-1002 Management Module Password Reset

We just purchased a D-Link DMC-1000 media converter chassis with a DMC-1002 management module. Connected to the module through a COM port and PuTTy and changed the root password. Subsequent login ...
9
votes
2answers
69k 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?
1
vote
1answer
379 views

Install Windows 2000 Server on new Dell hardware

I'll be contacting Dell as well with this question but I was wondering if anyone has had any experience installing Windows 2000 Server on a new Dell Rack server? I'm looking at either the Dell ...
2
votes
4answers
1k views

Linux (CentOS): Confirm that a disk device is a USB pen drive without logs

We have a USB pen drive connected to our server. It was connected months ago so we the log of the initial connection have since been rotated out. I know you could obtain the make and model of a ...