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

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1answer
1k 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
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0answers
6 views

Deploy OpenNMS for 3000 nodes [duplicate]

I have to deploy OpenNMS for 3000 nodes. what should be the hardware of server that could handle this much devices. (no vendor specific .... just general)
-1
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0answers
24 views

Minimum hardware requirements for tcpdump server

Need to purchase a cheap server to run multiple tcpdumps 24/7 on ports that are receiving port-mirrored traffic from multiple network devices, and I need to know what the minimum hardware requirements ...
0
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0answers
26 views

Centos 7 freezing on large workload

I recently upgraded my server to Centos 7; I asked the users to backup there data for the upgrade. After the upgrade some user tried to untar a backup tar (~300Gb) and this caused the server to hang / ...
1
vote
1answer
27 views

How to find which memory has CE error?

I think I have a memory in my server which has errors and I am wondering how I can find which one it is. Server model: Supermicro 6072R-EN3RFT RAM: 128 GB CentOS 7 with latest updates installed ...
2
votes
10answers
16k views

server is beeping

Walking by the server closet I noticed that one of our servers (namely the one that hosts the company software/data) is beeping: low-high repeat. As soon as it started, I backed up all of the data ...
1
vote
0answers
30 views

Can I mix ECC RDIMMs with different rank?

I have an Intel S5520SC motherboard with two Intel Xeon E5620 CPUs installed. It currently has six KVR13R9D4/8I DIMMS - I want to add another six DIMMs (48GB of RAM) to upgrade this workstation to ...
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votes
0answers
15 views

Asterisk dimensioning hardware on AWS and find out how many concurrent calls a server can handle? [on hold]

I am looking for Suggested Hardware to install FIAF(asterisk) AWS EC2 c1 and m1 instance. I would like to know how many calls it can handle concurrently at the same time? OS: Centos Codec:...
7
votes
2answers
8k views

HP ProCurve 2920 switch stack topology for TWO switches? Ring vs. Chain vs. trunk?

I have a customer whose two HP ProCurve 2910al PoE switches have failed. This was backing a VoIP deployment for a small call center. They are interested in replacement PoE switches, but there's a ...
1
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0answers
24 views

HP ProLiant DL180 G6 refuses to boot

My HP ProLiant DL180 G6 died on me during the night. Sadly during an raid-5 to raid-6 rebuild so my data may or may not be lost. That's next but first, the server won't boot. Problem details: Front ...
0
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0answers
10 views

poweredge t610, control panel assembly failure after PCIe Training error

I recently experienced 'PCIe training error - Embedded NIC 1, system halted' after powering on and after power-cycling, nothing happened when I hit the power switch, no display on control panel LED, ...
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0answers
26 views

Dual socket T5400 linux but not windows

I have a Dell T5400 desktop server type machine, which I use as my workstation. It came with a single Intel E5405. I installed Windows 10 Pro on it, which is said to support 2 cpu sockets at most. ...
1
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2answers
53 views

Replacing failed hardware in a hyper-converged cluster node [closed]

Is it possible to replace failed physical components (such as disk, RAM, or power supply) in a hyper-converged node (such as VXrail or Nutanix) without taking the node offline?
0
votes
1answer
13 views

How to make a reverse proxy server fail-safe and stable?

I'm planning to put a reverse proxy before our web servers, mainly for high availability, load balancing and SSL tunneling. Probably nginx or HAProxy. I understand that the proxy becomes the SPOF of ...
0
votes
1answer
73 views

MGE UPS Switched PDU

I have an old MGE Switched PDU unit. The one described in this manual: http://www.manualslib.com/manual/102923/Mge-Ups-Systems-Switched-Pdu.html I didn't use it in years and couldn't remember the ...
1
vote
0answers
60 views

Intel Xeon processors: Difference between 2S/4S and S2S/S4S scalability

While comparing Intel Xeon E5 and E7 processors, I've noticed that E5 processors are specified for 2S or 4S scalability, while E7 processors are specified for S2S, S4S, or S8S scalability. I ...
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votes
1answer
27 views

How to determine to determine the server type from inside a server on LW (LiquidWeb)?

Exist a way to match the hardware characteristics of a server that is hosted in LW(LiquidWeb) with the "plans" that those guy offer? With plans I refer to what they have here On a EC2 instance you ...
0
votes
1answer
19 views

Ubuntu Server 16 LTS no usb 2.0

After installation Ubuntu Server 16 LTS, there is no usb 2.0. I can not connect mouse, keyboard, disc, pendrive e.t.c. On usb 3.0 it works. Motherboard - new Gigabyte - GA-970A-DS3P
3
votes
3answers
7k views

Is a hardware watchdog already active at my CentOS server?

I rent a dedicated server (with Intel Haswell CPU and custom hardware) at a lowcost hosting service and use it with CentOS 6.4 / 64 bit Linux (with stock kernel: 2.6.32-358.14.1.el6.x86_64). Every ...
14
votes
9answers
19k views

Physically Identify the failed hard drive

So, let's say your server had 6 healthy hard drives. A drive fails (will not mount/detect, drops out of raid with errors) or is failing (SMART getting worse, etc). You need to swap out the bad drive....
1
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2answers
52 views

not responding HP dl360 g7, Blinking RED health, Green Power, 1 Fan degraded

I recently toke over a role and handled this server dl360 g7. It has 2 power supplies all are ok. 1 degraded fan and others are all green. Installed with VMware esxi and and 3 vm installed. The server ...
0
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0answers
40 views

hdparm unlock ssd with correct password encoding

I have an old password protected SSD connected via USB to my Linux System. I'm trying to unlock it with hdparm. Problem is my password was ./perspective (it doesn't matter now because I only used it ...
0
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2answers
1k views

HP ML150 G6 upgrading RAM/CPU beyond specs?

I am being told that some limits on some HP servers can be crossed. Do any of you have any experience with that? A ML150/G6 is limited to 48GB RAM but I have been talking to a German company that ...
0
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0answers
13 views

How to determine maximum concurrent requests that a server configuration can handle? [duplicate]

I want to buy a used server, but I don't know how to select the best one according to my needs. I have millions of static files, all of them are html, css, js and images, and are under 1MB is size. ...
5
votes
3answers
2k views

FreeBSD server - certified compatible hardware?

I am looking for recommendations for hardware that is "certified" with FreeBSD (8+) I suspect I am looking for a small server manufacturer that will build me a server that "just works". I have read ...
0
votes
1answer
49 views

HP Proliant Microserver appears totally dead

I have an HP Proliant Microserver (N54L G7) that has been sitting around fully disconnected and turned off for about 2 years (but was happily running back then). I wanted to repurpose it and today ...
0
votes
3answers
147 views

Can any standard rack server or enclosure be mounted on sliding rails?

I'm looking to buy an empty rack-mounted enclosure (2U to 4U) to fill with some custom equipment. One of the requirements is that we can easily open the enclosure top and access the contents ...
0
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0answers
24 views

Netgear ProSafe Switch Mounting Screw Size

I bought a JGS524 switch from netgear and have not looked to rack mount it until recently. The problem is, they do not list the screw size on their documentation and I would prefer not to buy a pack ...
1
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5answers
4k views

How to check if my hard-drive are on RAID5 or RAID6? - Windows Server

I'm not sure if a server I own has been setup on RAID or not. Is there any way to check this within Windows, rather than relying on what the company support tells me? Any ideas? :)
3
votes
1answer
121 views

DL160 gen9 P440 SAS cable

We recently bought a new HP Smart Array P440 RAID controller from the local HP reseller store for our HP DL160 gen9 server. (P/N: 783361-425) We want to run ESXi on the server, with three virtual ...
0
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0answers
14 views

generation scripts under /lib/udev/

I was wondering when triggered the rules generator scripts in /lib/udev/ are triggered to form e.g. /etc/udev/rules.d/70-persistent-net.rules? I could imagine that happens only once during install and ...
0
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1answer
22 views

VMware ESXI cpu and memory addition

I am looking to install the free version of ESXI on my server but am possibly upgrading it in the future. I currently have 1 CPU and 48GB of RAM. I would be looking to add another CPU and memory for ...
10
votes
2answers
22k 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 ...
1
vote
1answer
427 views

I shouldn't use both RDIMMs and LR-DIMMs on the same motherboard, right?

I tried to use on the same motherboard at the same time: Three LR-DIMM memory sticks, Four RDIMM memory sticks. The server refused to start; when I use either three LR-DIMM sticks or four RDIMM ...
2
votes
2answers
92 views

JBOD server for ZFS without dedicated boot drive

I am looking at buying a cost-effective machine for using openAttic, which is simply Ubuntu 14.04 64bit with ZFS. The server I am looking at gives me 8 bays of 3.5", where I plan to put SAS 7.2k ...
0
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0answers
27 views

Leadtek GTX 980i on SuperMicro 7047R-TRF (Motherboard X9DR3-F)

I have a plan to add a GPU for a server dedicated to scientific computation purpose (SuperMicro 7047R-TRF with motherboard X9DR3-F) and I have chosen Leadtek GTX 980 Ti considering the price and ...
2
votes
3answers
56 views

how to install ubuntu 10.04 on latest hp 9th Gen server with 64 GB Ram?

How to install Ubuntu 10.04 on latest HP 9th Gen. Xeon Servers with 64 GB RAM? We are able to install Ubuntu 12.04 but below that we are not able to do? Our software (erp) runs safe and sound only ...
0
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0answers
43 views

DL380 G7 adding a GPU

I'm trying to add a 550 GTX Ti graphics card into a dl380 generation 7 server. Page 4 of the quick specs goes into details on the riser options: http://www8.hp.com/h20195/v2/getpdf.aspx/c04286665.pdf?...
0
votes
1answer
31 views

Can I use an external 3G SAS device with a 12G card?

I want to connect an old 3G SAS DAS (Dell MD1000) to a new 12G RAID controller (PERC H830 or something LSI 3108-based). I assumed it would be backwards-compatible like SATA1/2/3 is, but after closer ...
1
vote
1answer
59 views

HP DL380 G6 Won't Power On

I've got an HP DL 380 G6 that has been having strange intermittent issues. It all started around a year ago when it was in production. I got the 10 PM call that something was wrong, stumbled to the ...
0
votes
2answers
64 views

Monitoring IBM server hardware without IMM port connection

We have a lot of IBM x86 servers that we need to monitor for hardware issues(disk failure/temperature/fans). Around 50% of them have IMM ports hooked up and we are able to monitor for SNMP traps using ...
1
vote
1answer
85 views

Disk IO Errors when writing / Linux + Windows / HDD is OK

The problem: I have a lot of Disk IO errors on my server, these are causing multiple server failures. VMs are rebooting because of IO errors "task xyz/sdaX blocked for more than 120 seconds" Backup ...
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votes
1answer
83 views

If a server is headless (CentOS 7) is there a way to make the GPU used as an extra CPU core?

I've got a server with centOS that has no graphical interface. I only connect to it via ssh. As a result, the GPU is probably not used for much. I'd like to make the server use it as an extra CPU core....
3
votes
1answer
65 views

Four lane SFF-8088 to SFF-8470 cable, 6G/12G

I need a couple of SFF-8088 to SFF-8470 cables and the HP manual says the HP 408771-001 is the right one for me. My hardware dealer has them in stock for about 100$. I browsed a bit and found the HP ...
2
votes
4answers
3k views

IBM Xseries 3400 only working while power button holding pressed

I have an IBM xSeries x3400 Intel Xeon server which only works while someone holds in the power button. My server stopped working and I sent it to IBM Service. After a few hours they told me I could ...
2
votes
1answer
34 views

Weird smartctl output. Is my disk in danger?

I have a disk, that gets me kinda weird smartctl output. I have never seen such large nubmbers on other disks. Does anyone now how to interpret these ? Is the disk likely to be faulty ? SMART ...
8
votes
6answers
8k views

Where do you find your MTBF data?

Mean time between failures may be difficult to interpret, but there is a wealth of statistical method that you can use if you have some hard data. Trouble is, nobody reports their MTBF numbers ...
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votes
3answers
277 views

ProLiant DL580 G7 E7 Upgrade Issue

I'm an administrator IT and also repair desktop computers & servers for many years. We have an DL580 G7 whose warranty expired 12/31/2015. Originally supplied with Xeon E7530 and standard memory ...
10
votes
2answers
937 views

How can I tell if the server supports hot-swapping drives?

I recently purchased a used server (the type that fits into a rack, rather than a free-standing machine). One nice feature, is rather than having to open up the cover and unscrew the harddrives, this ...
0
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2answers
2k views

ECC CE (Correctable Error) occuring every 5 minutes exactly

On one of our computing nodes I am getting ECC CE (correctable errors). What is a little bit peculiar about is is that errors are not massive, just a single occurrence exactly every 5 minutes. ...