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

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2answers
227 views

Server destroying and burning my Hard Drives [closed]

Before I start, let me inform you that I have been working as an IT Manager for large international companies for my whole life, and I have received masters degree from IT technology. I therefore ...
3
votes
2answers
2k views

How do I replace a drive on my NAS?

I have a Thecus N8800+ NAS. It has 8 2TB drives and is RAID 6. One of the drives recently has been reported as having bad blocks, though the RAID is still reported as healthy. I want to replace the ...
10
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1answer
293 views

Standard Bolt Pattern for Racks in Datacenters

Is there a "standard" way of bolting racks down that is interchangeable between vendors? At our datacenter we've standardized on a Damac rack for our builds. Because we're building in volume, the ...
-1
votes
1answer
406 views

2U rack hardware, budget but stable, what to buy? [closed]

So, I'm tasked with helping buy motherboard/CPU/ram for a 2U server, that will be brought in luggage to China. The requirements are that the hardware is reliable/stable (read: long lasting) at the ...
1
vote
1answer
954 views

HP ProLiant DL380 G6 with 2 x Intel x5650 CPUs

I have an old HP DL380 G6 server, I am trying to upgrade the processor. I added 2x X5650. but each time I powered the server on, the fans stat working loudly and keep like that. the server never never ...
0
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1answer
64 views

How standardized are rack server components? [closed]

I have a couple of servers at home for personal use, and I'm considering replacing them with rack servers that I'd scrounge up in used condition, just for easier management and whatnot. I don't have ...
1
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5answers
1k views

Cost effective way to handle high SSL traffic?

Some time in the future, I may need to build a dedicated SSL farm (as described in Making applications scalable with Load Balancing) or something similar to handle lots of SSL traffic. While it's not ...
7
votes
6answers
826 views

Rack layout for future growth

We're getting ready to move to a new colo facility and I'm designing the rack layout. While we have a full rack, we only have 12U worth of hardware right now: 1x 1U switch 7x 1U servers 1x 2U server ...
1
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3answers
248 views

Is it possible to find a computer's physical location in a room?

I'm currently working on our network monitoring system (NMS) project, and I want to know if there's a way for me to pinpoint where each PC is currently at. Say, for example, we have a room with 40 ...
21
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3answers
2k views

What is this wiring panel and what are these Ethernet “ports?”

In my office's building there is a stone-age LAN rack with some Ethernet ports I've never seen before. I need to find the name of this ports, if they have one, and then buy some cables or adapters. ...
1
vote
1answer
107 views

Is it safe to use PoE injector for routers that do not support PoE

We bought an Asus router n66U to be installed in a tourist bus along with a server. The bus has a inverter to supply a 220V AC. However, there can be abrupt power fluctuations specially during ...
2
votes
5answers
192 views

Are web servers/services more prone to fail outside of working hours?

I've just had a server outage at 4.59AM on Sunday morning, and looking through our uptime records going back to 2006 all except for 4 outages out of 20 occured between 11PM and 6AM. (Only looking at ...
3
votes
6answers
563 views

Build two servers or buy one from manufacturer?

I'm replacing three 7 year old servers with one new one. We are a small k-12 independent school, running AD, exchange, a database, and 3 3rd party apps. From my research it looks like I can build 2 ...
18
votes
7answers
5k 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 ...
0
votes
1answer
1k views

Belkin Flip KVM keyboard skip problems

I have just bought a Belkin Flip 2 port KVM. Functionally it is almost there except I have a keyboard sticking problem. So if I type the word 'Hello' it will often (about 25% of the time) output ...
12
votes
13answers
891 views

Hard drive fail - How to regain confidence on the drive or make some use of it

After a hard drive fail (lots of corrupted sectors) I reformat it, but the drive give me no confidence to use it in production. Is there a tool to stress test so I know I can use it? In which ways ...
1
vote
2answers
447 views

What factors affect the noise level of a server?

I have a Dell PowerEdge 1950 rackmount server. It hosts an important SQL database, and in the past month or so, it has become very loud, which is irritating and distracting me. I ran some basic ...
5
votes
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 ...
3
votes
5answers
800 views

What to do With Power PC Mac Systems

I have a customer - a small business where IT is a cost center, not a profit driver - with six high-end PowerPC machines (dual-CPU Power Mac G5, 2G RAM, the works...). These machines will shortly be ...
2
votes
2answers
775 views

Hardware to remotely reset a server which doesn't have a built in IPMI module?

I work for a hosting company, where we offer colocation services. Since we offer colocation for client hardware which we don't own, a lot of the client devices don't have an IPMI module to allow ...
4
votes
1answer
862 views

Save the Dell PowerEdge blue indicators

I'm staring at several racks of Dell Poweredge servers, which have behaved very well for us, but... The blue power indicators (LCD backlight on newer machines) fade out over time. I think I could ...
0
votes
0answers
10 views

Belkin Enterprise KVM - Displays 88

I just picked up a used Belkin OmniView Enterprise (F1DE216C), and it powers on, but both displays show 88 instead of the expected bank ID. There isn't any output on the attached console screen, ...
2
votes
4answers
288 views

What features of a HP DL server make it so much more performant than commodity hardware?

I've used HP DL machines at work. I found them to be blazingly fast, but very expensive - up to $15k, I am curious though, although the spec we typically used (e.g. dual AMD Opteron 2.6GHz, 8 or 16GB ...
1
vote
1answer
913 views

HP Server attention light is blinking?

We have an older HP Server RP2470 running HP UX. I've been assigned to perform some hard drive clean up and OS Maintenance on the server before we move it into production. Everything is going just ...
21
votes
6answers
844 views

How to prepare computers for donation

We are decommissioning around 40 Dell desktops. We would like to donate them but drives need to be wiped. What's the best approach to wipe them all as efficiently as possible? Is it standard practice ...
1
vote
1answer
661 views

SD card for iDRAC 6 Enterprise - Dell vFlash or “normal” SD card?

I have got the built-in iDRAC 6 Express working on our Dell R610's, but I am about to get some iDRAC 6 Enterprise cards, which can be gotten fairly cheaply on eBay (around 20 USD at the time of ...
1
vote
1answer
64 views

What difference between HP and Intel network adapter, both using an Intel controller?

For example, the network adapter HP NC360T PCI card uses the Intel 82571EB controller. So, what exactly is the difference between an Intel "fully" branded card, and a HP branded card having an Intel ...
0
votes
2answers
183 views

my dell power edge 2900 power off after 1- 1.5 hours automatically

My Dell PowerEdge 2900, running Windows Server 2012 powers off after 1 - 1.5 hours automatically. Is a fan speed fault on the front panel is, but that should not stop the server. I swapped a ...
3
votes
3answers
352 views

How do manufacturers figure huge MTBFs?

I've been looking into purchasing some switches for a new office fitout, and I notice that Netgear give their MTBF as 45 years (!). How do they figure this out? Is this number meaningless? I assume ...
7
votes
4answers
7k views

How to make my HP server boot faster?

I have an HP ProLiant DL370 G6 server that I am using as a workstation. It takes 60 seconds during reboot and cold boot before screens post with a discrete Radeon HD6xxx GPU. What can I do to make ...
132
votes
6answers
16k views

Are SSD drives as reliable as mechanical drives (2013)?

SSD drives have been around for several years now. But the issue of reliability still comes up. I guess this is a follow up from this question posted 4 years ago, and last updated in 2011. It's now ...
1
vote
1answer
122 views

Finding out which cciss disk is what /dev/sdX disk (smartmontools & cciss raid controller)

I have a HP server, which has a hardware RAID array (that mostly isn't being used for raiding, the disks are just passed through to the Linux OS). I have 6 SSD disks. 2 are riad mirrored together by ...
1
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1answer
45 views

is it possible to move hard disks in raid 5 to pc without raid controller for accessing the information Temporarily?

I want to rebuild my array (RAID 5) for expansion. In the current configuration, I have 3x320GB hard disks giving me about 600 GB usable. I want to replace these hard disks with 3x1TB hard disks ...
2
votes
2answers
678 views

Fan Speeds on SuperMicro System via IPMI

I have a SuperMicro 4027GR-TRT server that I am running multiple GPUs in. I would like to set the cases fan speed higher that what they are right now using IPMI, although I am not sure how to do it. ...
3
votes
1answer
167 views

cannot remove faulty device from LVM2 raid1 mirror

One of the three disks went off in my LVM raid1 logical volume. (It was a bad experiment actually). The volume is a pure LVM raid1 one (no, not an LVM mirror), without any mdadm / fakeraid. The ...
2
votes
0answers
120 views

BUG message on xenserver 6.5 - bad memory?

Several times a day I receive the following error in /var/log/messages. The server hangs and requires a reboot to respond again: Feb 1 13:44:54 xenserver-abfuqvrs kernel: [35023.166776] BUG: unable ...
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votes
1answer
353 views

How many hours of SMART power on hours use should a new hard drive have?

Purchased a new HGST hard drive. Using smartctl on OS X the new drive shows 71 hours of power on hours Does this make sense or is this a sign of a refurbished drive? I can't imagine why the ...
0
votes
1answer
199 views

Ubuntu 14.04 Cloud Server - Disks gone Read Only

Disks on our cloud server with our web host went read-only this morning for no apparent reason. Following that a reboot to try and rectify the issue resulted in a non-bootable system. Our Web Host ...
0
votes
1answer
100 views

Does the SAS Expander / Backplane matter?

If I am buying some used servers with 24-25x SAS that I hope to someday upgrade from 6Gb/s to 12Gb/s RAID, do I need to be concerned at all with the backplane that the drives are plugging into not ...
3
votes
2answers
4k views

VMware ESXi and ZFS hardware & configuration recommendations [closed]

I want to finally spend a little money upgrading my company's virtualization infrastructure, but I've been looking at hardware for a couple of weeks now and I'm not quite sure what's appropriate for ...
2
votes
4answers
205 views

Are magnetic-tipped screwdrivers okay around servers?

Specifically, I am asking about screwdrivers with removable tips (something like this), but I think the answer would apply to any magnetic-tipped screwdriver. Will the magnetic field damage anything ...
0
votes
1answer
337 views

Rack Mount for a 3Com 4210 switch

Does anyone know where I can get a rack mount kit for a 3Com 4210 9 port switch. Needs to fit into a 19" rack
7
votes
8answers
4k views

Any reason to use a rack-mountable server if I lack a rack to mount it on?

I'm somewhat new to server hardware, and was wondering if there was any reason to purchase a 19-inch-rack-mountable server as opposed to a standalone (tower) system, or any difference between the two ...
2
votes
3answers
185 views

Reusing existing equipment

One of my clients has a small office in a major city that used to be main office for the company.Due to the organizational changes main office was moved to a different country but all equipment and ...
6
votes
10answers
258 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 ...
1
vote
8answers
236 views

Purchase servers for my start up, or build them ourselves?

I'm working on a web startup that would involve us hosting and streaming a lot of large files, such as video files, and I'm just wondering if it'd be better, cheaper, etc. to purchase the dedicated ...
7
votes
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 ...
3
votes
5answers
261 views

What is the most cost-effective way to buy a Windows 2008 server?

I'm a programmer, so I have no real experience with buying servers. In order to make a solution work, my customer needs the most cost effective server. I used to work for an IT support company, so I ...
26
votes
5answers
4k 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 ...
3
votes
1answer
233 views

What determines what resolutions a laptop is willing to output over VGA?

I'm responsible for several conference rooms and have setup 1080p projectors and I provide both HDMI and VGA connectivity. HDMI for DisplayPort and Mini-DisplayPort, and VGA as a fallback, universal ...