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

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9
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4answers
13k views

Incredible low disk performance on HP DL385 G7

As a test of the Opteron processor family, I bought a HP DL385 G7 6128 with HP Smart Array P410i Controller - no memory. The machine has 20GB ram 2x146GB 15k rpm SAS + 2x250GB SATA2, both in Raid 1 ...
15
votes
1answer
7k views

Hosting a ZFS server as a virtual guest

I'm still new to ZFS. I've been using Nexenta but I'm thinking of switching to OpenIndiana or Solaris 11 Express. Right now, I'm at a point of considering virtualizing the ZFS server as a guest within ...
7
votes
13answers
22k views

HP Proliant DL380 G4 - Can this server still perform in 2011?

Can the HP Proliant DL380 G4 series server still perform at high a quality in the 2011 IT world? This may sound like a weird question but we are a very small company whose primary business is NOT IT ...
6
votes
1answer
4k views

How exactly does a SAS SFF-8087 breakout cable work? + RAID/connection questions

Please let me know if my question does not makes any sense as I am not sure if I am interpreting it correctly from my thoughts due to my lack of technical knowledge on this. If I am using a ...
114
votes
12answers
9k views

Should servers be turned off at night?

There is a server that is used from 4:30 am in the morning until ~ 22:00. Should it be turned off? I think that it is a server and that it won't have a problem to stay on, but serious professors are ...
30
votes
2answers
6k views

HP ProLiant DL360 G7 hangs at “Power and Thermal Calibration” screen

I have a new HP ProLiant DL360 G7 system that is exhibiting a difficult-to-reproduce issue. The server randomly hangs at the "Power and Thermal Calibration in Progress..." screen during the POST ...
5
votes
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 ...
13
votes
3answers
4k views

What happens when the USB key or SD card I've installed VMware ESXi on fails?

An SD (SDHC) card installed in an HP ProLiant DL380p Gen8 server running VMware ESXi just failed :( I encountered some ominous looking messages on the vCenter console and in the HP ProLiant ILO event ...
45
votes
12answers
3k views

What should I pay attention to when I'm buying a network switch?

Since I'm not a hardware expert, I don't know what features make a network switch a good network switch. What should I pay attention, when I'm comparing the different models from different vendors?
18
votes
12answers
77k views

How to find out details about hardware on the Linux machine?

-i.e - how to get a full list of hardware components in command line (on a machine with no window system) Thank you.
8
votes
11answers
2k views

GUI tools to administer Linux Box

What GUI tools do you advise to improve the usability of Linux for those accustomed to doing system administration the windows-way? Users new to Linux often get confused when they need to configure ...
22
votes
13answers
2k views

High Failure Rate of Large Drives?

I recently deployed a server with 5x 1TB drives (I won't mention their brand, but it was one of the big two). I was initially warned against getting large capacity drives, as a friend advised me that ...
7
votes
3answers
29k views

How to find RAID configuration/level and RPM speed having only remote access to the server?

Having only remote access (no physical access), to a server (that is SSH), how do I (or may be is it possible): find out whether it is RAID configured or not? If it is RAID configured, whether it ...
10
votes
9answers
2k views

Should old servers be retired

I have servers which are still running well but are over 5 years old. They are still doing the job perfectly and there will be no advantage to upgrade the servers, should I just let them run forever ...
7
votes
4answers
4k 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 ...
27
votes
9answers
22k views

Reliability of ssd drives

The main advantage of SSD drives is better performance. I am interested in their reliability. Are SSD drives more reliable then normal hard drives? Some people say they must be because they have no ...
42
votes
7answers
3k views

Probability of Blade Chassis Failure

In my organisation we are thinking about buying blade servers - instead of rack servers. Of course technology vendors also make them sound very nice. A concern, that I read very often in different ...
6
votes
5answers
11k 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.
8
votes
2answers
10k 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 ...
19
votes
4answers
1k views

SSD head / cylinder / cluster details

A customer of ours makes industrial robots that run on very old, but stable, hardware and software. The only bottleneck has always been the hard drive in these moving machines. Due to constant ...
5
votes
2answers
6k views

Dell Perc 6/i and 3TB drives?

Does the dell Perc 6/i controller support 3TB drives?
4
votes
8answers
279 views

Buy or Build systems? [duplicate]

Should I be buying workstations and servers from Dell/HP or build them myself? What exactly are we paying these companies extra for?
4
votes
2answers
31k 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?
2
votes
3answers
1k views

hardware spec for vmware server [closed]

I'm considering buying a server for my home network to run vmware server, I use a number of virtuals for testing and web development (sharepoint, ie 6, 32bit windows, linux etc) and running ...
14
votes
4answers
49k views

DIMMs: Single vs. Double vs. Quad Rank

What difference does the 'Rank' of DIMMs make to server memory? For example, when looking at server configurations I see the following being offered for the same server: 2GB (1x2GB) Single Rank ...
24
votes
5answers
2k views

Do I need to RAID Fusion-io cards?

Can I run reliably with a single Fusion-io card installed in a server, or do I need to deploy two cards in a software RAID setup? Fusion-io isn't very clear (almost misleading) on the topic when ...
11
votes
6answers
8k views

Hyper-V and Drobo Pro

I'm considering getting a fully loaded Drobo Pro and using it to store VHDs that would run our on a pair of Hyper-V host machines. The host machines would connect to the Drobo Pro via iScsi. Anyone ...
6
votes
6answers
534 views

Creating an IT Budget

I am a very new, highly inexperienced System Administrator. Regardless of any of this, I have been tasked with being the entire IT department at this small business. I must come up with some sort of ...
5
votes
6answers
8k views

How to best migrate a server to new hardware

I'm getting ready to migrate a server from old hardware to new hardware. I'm thinking of doing a P2P migration rather than actually rebuilding, reinstalling and migrating databases. The servers are ...
17
votes
7answers
3k views

Do you continue to use your end-of-life server/network equipment?

So you spend lots of money on nice servers, storage arrays, or network equipment and it works wonderfully for you for years. But after 3-6 years your vendor no longer offers maintenance for the ...
2
votes
4answers
1k views

what cpu will work with hyper v

how do i verify if a cpu has the necessary requirements to run hyper v ?
7
votes
13answers
1k views

what to do with old hardware

What do you do with your old / unused hardware? Cables, Hard drives, motherboards, and others peripherals you have around? Stuff that is broken or just too obsolete to use.
5
votes
4answers
270 views

Hosting a server for websites, ftp and random use at home? [closed]

I'm wondering what's the best option for me if I want to move all my hosted websites (from a hosting company) to a server at my own home? Basically, the needs I have are: be able to host websites ...
15
votes
1answer
964 views

How to correctly move a server inside a rack up and down

Maybe a bit stupid question, but Sometimes (rarely but it happens) I need to move a server in a rack 1-2U up or down. What do you think, which of the ways is the most correct and useful and why? ...
6
votes
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 ...
5
votes
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?
2
votes
3answers
278 views

Looking for a matrix of Cisco equipment

I used to have a very handy poster which had all of the Cisco equipment in matrix form which laid out which router had which interfaces and slots, with the same for the switch lines. Is there a ...
2
votes
0answers
253 views

What might cause DIR $file to report “File not found” when DIR $dir shows the same file just fine?

I can DIR a file and it doesn't exist, but DIRing its directory, or a file in the same directory as it, works fine. Is this a hardware or software problem? If it's hardware, is it the drive or ...
2
votes
5answers
829 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 ...
1
vote
0answers
45 views

Needing to upgrade server solution, not sure which direction to go [duplicate]

Possible Duplicate: Can you help me with my capacity planning? On "Black Friday" our web server took on more load than it could handle. We are currently looking into upgrading, but I am ...
1
vote
1answer
4k views

VCenter Server shows error on Hardware Status for hosts

I'm running VMware ESXi on two Dell PowerEdge R610 servers, with a third server, a PowerEdge R410 running vCenter Server. We have an Essentials license. In the past I used to be able to open vCenter ...
1
vote
1answer
63 views

VMWare Worksation hardware

I'm gonna spec a new computer, used for running VMWare Worksation. The computer will be running a few virtual machines - A dev machine running VS-2010, a build machine, a version-control machine, a ...
0
votes
1answer
142 views

What kind of hardware should I be looking at to scale to ~20k users continually? [closed]

Let's say it's something like Stack Exchange that I'll be running (it isn't, but it's close enough to have similar resource usage), and I'll have approximately 20000 users from August to January (with ...
-2
votes
1answer
168 views

replacing failed hard disk in raid 1 on dell emc cx300 [closed]

how can I replace failed disk in slot 12 in raid 1 on san dell emc cx300 I HAD Configured the san with hot spare hard disk in slot 13. Is it enough to remove it from it's slot an put instead of it ...
314
votes
7answers
58k views

Something is burning in the server room; how can I quickly identify what it is?

The other day, we notice a terrible burning smell coming out of the server room. Long story short, it ended up being one of the battery modules that was burning up in the UPS unit, but it took a good ...
22
votes
11answers
10k views

Is anyone else using OpenBSD as a router in the enterprise? What hardware are you running it on? [closed]

We have an OpenBSD router at each of our locations, currently running on generic "homebrew" PC hardware in a 4U server case. Due to reliability concerns and space considerations we're looking at ...
49
votes
14answers
2k views

Is UPS worthwhile for non-production equipment?

Over the years, I've had to throw away a quite a few bits of computing equipment (and the like): Several ADSL routers with odd symptoms (losing wireless connections, losing wired connections, DHCP ...
24
votes
7answers
11k views

What are the performance differences between Raid 0,1,5,6,10

I have heard/read different performance stories on the various raid flavors. I am curious what the agreed upon best answer is.
22
votes
13answers
3k views

Anti-static wrist straps: are they worth it?

Do you use an antistatic wrist strap when working on hardware? Do they really work? Have you ever fried some hardware that would have been saved if you had been wearing one? I know some people who ...
21
votes
16answers
1k views

How have you saved green by going green?

For the purpose of this question, I am interested in server/datacenter related hardware. Have you had any measureable amount of ROI by swapping existing hardware to more "green" or energy efficient ...