Questions tagged [hardware]

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

Filter by
Sorted by
Tagged with
1 vote
0 answers
532 views

Memory controller or ECC errors on Xeon server. How to interpret the syslog entries?

I just got an alert from one of my servers, running FreeBSD 11.2 on a Xeon E5-1620 v4 with ECC. Its the first time I've seen an error like this, and there's a lot of detail. But it's also a one-off ...
Stilez's user avatar
  • 724
0 votes
1 answer
1k views

HP ProLiant ML350 Gen9 - Replace SFF cage with LFF cage to use specific HDD

Recently, I was given the task to replace the SFF HDDs in a HP ProLiant ML350 Gen9 (PN: 776973-425, tower version), and use LFF HDDs instead. The HDDs are 4TB SAS 7.2K LFF SC DS HDD (PN: 872487-B21). ...
Ismael Miguel's user avatar
0 votes
1 answer
120 views

OCZ Revodrive 350 srs interrupts

We built some servers running Windows Server 2016 out of some "spare" parts with the following specs: Supermicro X10DRH-iT Dual E5-2620 v3 256GB Registered ECC DDR4 RAM 1x Adaptec 71685 RAID ...
Lenniey's user avatar
  • 5,280
0 votes
1 answer
41 views

Programs to monitor CentOS servers and workstations?

Are there programs / solutions that would allow me to monitor the hardware, software, issues, performance, networking and I/O of approximately 100 CentOS/Rhel servers and workstations? Google finds ...
boardrider's user avatar
74 votes
13 answers
51k views

SSD or HDD for server

Issue I have read many discussions about storage, and whether SSDs or classic HDDs are better. I am quite confused. HDDs are still quite preferred, but why? Which is better for active storage? For ...
genderbee's user avatar
  • 891
0 votes
0 answers
25 views

What's the more decisive server hardware vector for heavy load production webserver performance [duplicate]

I'm about to buy new server hardware and I was wondering, in your opinion, and reducting problem to one machine (that's it, no more complex network infraestructure in play) what's the local server ...
NBK's user avatar
  • 1
0 votes
1 answer
3k views

ESXi 6.5: Relation between "expose hardware assisted" and "CPU/MMU virtualization"

I'ms crawling among docs, sites etc. to understood relation between two ESXi parameters of VMs: "Expose hardware assisted" and "CPU/MMU configuration". The first is about to authorize VM to directly ...
Greg'ory's user avatar
1 vote
0 answers
2k views

Supermicro Motherboard won't boot, onboard power LED lights up

I'm having issues getting a Supermicro motherboard to boot. When I switch the PSU on, the Onboard Standby Power LED lights up on the motherboard. Pushing the power switch then has no effect. No beeps, ...
Adam G.'s user avatar
  • 31
0 votes
1 answer
127 views

2 x Intel Xeon 5645 vs 1 x Intel Core i7 3.9Ghz: what is a fundamental difference?

I would like to understand a fundamental difference between the two following setups: 2 x Intel Xeon 5645 6x2.40 GHz + DDR3 memory 1 x Intel Core i7 4x3.9Ghz + DDR3 memory I am running a LAMP stack ...
user1065145's user avatar
0 votes
0 answers
412 views

Increasing chassis fan speeds?

I have a rack-type server whose motherboard is ASUS Z11PG-D16 Series (according to lshw). ipmitool reports 7 front fans, and I would like to increase their speeds. Is there any way to do that? ...
noname's user avatar
  • 101
0 votes
1 answer
979 views

Does Xeon Harpertown (E5400 series) support ECC DDR3?

Is it possible to use Xeon E5450 with 8GB (preferably 16GB) DIMMs of DDR3 Registered Buffered ECC RAM? I checked Intel's Spec page for Xeon E5450 and Wikipedia Xeon#Harpertown Harpertown spec table ...
Josh's user avatar
  • 61
3 votes
2 answers
5k views

HP ProLiant DL360P G8 stuck on post

My HP ProLiant DL360P G8 started acting wierd after I started it up for the first time since last year. When it turns on it enters POST but gets stuck on "Memory and QPI Initialization Start" with ...
user179898's user avatar
0 votes
1 answer
386 views

How do I find the Dell controller and pdisk number given a serial number?

I need to blink a drive that I found out had SMART errors using smartmontools. I have omconfig installed and it looks like it can be used for blinking LEDs, but I don't know how to find the controller ...
howderek's user avatar
  • 143
0 votes
1 answer
141 views

Migrating tower servers to a rack sytem

We have a small office but I'm starting to see the benefit of a rack. We have: Windows Server as a DC and for file hosting. Linux machine for the phone communications. DVR for the cameras (rack form ...
Yaazkal's user avatar
  • 19
1 vote
2 answers
350 views

How Do I Analyse Results of Load Testing to Determine Hardware Requirements

When running load tests for an application server, the average results are as follows for 1.25 concurrent users. I calculated 1.25 concurrent users by taking a peak hour of visitors (5 visitors) for ...
Matt's user avatar
  • 113
1 vote
1 answer
600 views

Missing openssl cipher-algorithms on specific VMs/Hoster

I'm trying to use AES-128-CBC-HMAC-SHA256 but this cipher-algorithm isn't available on a VM on a specific hosting provider. The OS, installed packages, Kernel, openssl version, and the like are the ...
Erik's user avatar
  • 13
2 votes
1 answer
31k views

Collecting SFP+ attributes in Linux

I need to collect hw component inventory from physical systems running RHEL (6 and 7) and its derivatives. I need to collect the SFP+ attributes along with the rest of the components. I know I can ...
Lubos A.'s user avatar
0 votes
1 answer
380 views

stresslinux hanging on boot at "NMI watchdog enabled, takes one hw-pmu counter. #3"

I have a Gigabyte GA-z170N-WIFI (32GB memory in two 16GB modules) board that refuses to boot, When booting to real media (I.e. Ubuntu 18 live install CD or it's installed OS on SDD) it freezes at ...
BurningKrome's user avatar
14 votes
2 answers
5k views

Do empty drive bays need to be filled?

I have a Dell R610 server, which has 6 2.5" drive bays. These all came empty. Generally, when I see pictures, all of the drive bays contain either drives or empty mounts. At first, I thought it would ...
Radvylf Programs's user avatar
4 votes
1 answer
890 views

If I connect a SATA3 6Gbps SSD to a SAS2 6Gbps port using a breakout cable, will I get SATA3 speeds?

I have 2 SATA3 SSDs in my server, which are currently connected to SATA2 ports. If I wanted to get SATA3 speeds out of them instead, could I buy a SAS2 HBA and use an SFF-8087 to SATA breakout cable ...
D3matt's user avatar
  • 43
17 votes
1 answer
6k views

What kind of SATA connector is this?

My Supermicro motherboard has a "vertical S-SATA connector". The manual simply says "A vertical S-SATA connector, offers four S-SATA 3.0 connections (S-SATA 0-3)". I took a picture of it and it ...
Pete's user avatar
  • 355
1 vote
1 answer
63 views

Are all LFF caddies compatible in a LFF slot?

Is it possible to use, let's say, some Chembro LFF caddies on a HP gen8 server or a Dell?
M4rty's user avatar
  • 113
1 vote
0 answers
36 views

How to read kernel messages from screan at boot time, in case boot crashes?

How can I read the messages of kernel page by page on the screan at the boot time ? I know the "dmesg" command or /var/log ... but my box crashes before booting could have finished. Is there any ...
László Szilágyi's user avatar
0 votes
2 answers
3k views

HP ProLiant DL380 G6 GPU installation

I have a Proliant DL380 G6 and I want to build a Graphics card into it. To be specific, it is a GTX 960 from Asus. The card When I now want to build it in, I am pretty shure I need a pcie slot riser, ...
Lukas's user avatar
  • 9
0 votes
0 answers
351 views

HP ML350 G6 No POST, All Lights Green, previosuly working with ILO2 connection

Greetings and salutations I have a working previously working server which I’ve used for 7 months with no downtime other than updates and OS upgrade, now I purchased another server and removed all ...
CorpCaleCeo's user avatar
3 votes
1 answer
4k views

Manually control fans on an HP Proliant server

I have an HP ProLiant DL380 Gen 5 server. I want to adjust the "fan curve" to allow the fans to be switched off while the CPU and the RAM are cool enough. Is this even possible, and if so how would ...
Jachdich's user avatar
  • 133
3 votes
1 answer
2k views

Is it possible to check drives SMART attributes from a USB/eSATA enclosure?

I use USB external drives on a daily basis and I would like to be able to check on their integrity. I recently happened to discover I was unable to read SMART attributes from them. I wonder if there ...
Paradox's user avatar
  • 135
0 votes
0 answers
21 views

What could be Wordpress CPU requirements compared to its RAM requirements? [duplicate]

Im not asking how much RAM/CPU my website(s) will need to run, but if it is possible to determine a relation between CPU and RAM. Is there a relation? When I want more CPU and when I want more RAM to ...
Zio Tibia's user avatar
0 votes
1 answer
71 views

Examine contents of unused space on the HDD

When using managed dedicated services, either virtual or physical, where you're presented with complete control to an operating system installed on some piece of hardware you don't have physical ...
cnst's user avatar
  • 14.3k
1 vote
1 answer
204 views

Can I replace one Intel Xeon e5-2603v3 with dual E5-2690v4 on HPE server?

I've got an entry level HPE SRV 778640R-B21 which supports dual CPU but comes with an E5-2603v3 (LGA2011-3 / DDR4). It has also 550W power supply. I want to remove the current cpu and add a pair of ...
Nime Cloud's user avatar
1 vote
3 answers
698 views

How to use more than 3 hardrives with Supermicro X9DRT-HF board?

I got a 4 node supermicro 2U unit which has 12 how swapable caddies, 3 for each node. The problem is that I want to connect at least 4 if not even 6 drives to a single node. The BIOS reports 3*2 ...
sorin's user avatar
  • 8,216
1 vote
2 answers
812 views

Why same disk model but different capacity?

I'm trying to replace an old disk on a JBOD that I inherited. I bought exactly the same model but it seems it has a different capacity (resulting from different number of disk sectors), preventing me ...
elleciel's user avatar
  • 389
0 votes
2 answers
250 views

UPS for HP ProLiant DL180 G6

I inherited HP ProLiant DL180 G6 model supposed TB used for some additional (non mission-critical) work and need to buy the UPS for it. I've read that PSUs for HP servers tolerate pretty much only the ...
LetMeSOThat4U's user avatar
0 votes
1 answer
2k views

Server not powering on after upgraded to Intel Xeon E5-2695 v2 [duplicate]

Have a ProLiant DL360p Gen8. Old CPUs were E5-2670. Upgraded HP latest ROM Server does not power on any more. See amber LED light on the CPU in the Systems Insight Display. As far as I know this CPU ...
poopa's user avatar
  • 75
2 votes
2 answers
477 views

PowerEdge T610 H700 controller upgrade

I have a PowerEdge T610 server with Perc H700 RAID controller. I wanna use the controller for non-raid, but I read some posts and the H700 controller doesn't support the non-raid operation. The ...
Chraze's user avatar
  • 21
0 votes
0 answers
27 views

Figuring out how much VMWare hardware capacity I need during the planning phase [duplicate]

So, I know there are a lot of great tools for analyzing current resource utilization and so on, but that's not what I'm looking for. What I'm trying to figure out is the best way to plan how much ...
Paul's user avatar
  • 998
0 votes
0 answers
26 views

Hardware for virtualization [duplicate]

I need to choose appropriate hardware for virtualize with vmware - 1 windows server 2016 (active directory, wsus, centralized antivirus software...) - 1 windows server 2008 (run 2 server software) - 1 ...
Davide Filippi's user avatar
0 votes
1 answer
386 views

Does the MSI H55M-E33 motherboard support the xeon L3426?

While searching for this myself I found there were quite some other people online searching for the same answer, but nobody replied with their results. As such, I found it only fair since I have been ...
xorinzor's user avatar
  • 320
0 votes
2 answers
2k views

What PSU form-factor do I need?

So I finally got my Fantec SRC-2080x07 2U server chassis replacement. Only to find out that the Be Quiet TFX Power 2 300W Gold PSU that I ordered, is too small to fit. Here's a picture of the PSU ...
xorinzor's user avatar
  • 320
3 votes
1 answer
2k views

DL580 G7 not booting / posting

I have two DL580 G7 and I cannot get any of these to boot. What happens is that the internal health LED flashes red and it displays all four CPU-LEDs in amber. There is no post code, exactly nothing ...
Sebastian_學生's user avatar
0 votes
1 answer
157 views

What is a 4x 10gbe QSFP-QSFP cable?

I was looking for QSFP cables on Ebay and came across a Brocade 58-0000033-01 marked as 4x 10GE even though it has one QSFP connector on each end. I don't understand what this cable is for, will it ...
chew socks's user avatar
1 vote
1 answer
81 views

Hardware Checks after Air Conditioning Failure

We had an overnight air conditioning failure. We discovered that the temperature in the server room had reached about 110-115°F (43-46°C). We powered off everything that hadn't already and had the A/C ...
Bailey Parker's user avatar
0 votes
1 answer
446 views

Why does the server chassis backplane have multiple SFF8087 connectors?

On the backplane, there are 5x SFF8087 connectors on a 20x SATA disk setup. Why are there 5x connectors? Do all 5x need to be connected to the motherboard via a SAS Controller, or only one? And does ...
Michael Cropper's user avatar
0 votes
1 answer
340 views

Does it make sense to connect a redundant power supply to a C14 splitter?

Recently visiting a small data room, I noticed that redundant power supplies of a server are connected through a C14 splitter which, in turn, is connected to a single socket of a UPS. I told the ...
Arseni Mourzenko's user avatar
0 votes
1 answer
428 views

Detect the hard drive sector for 4k vs 512

Some of the hard drive in Virtual machines moved from legacy sector size of 512 bytes to a larger, more efficient sector size of 4096 bytes, generally referred to as 4K sectors. Operating system ...
Bijendra's user avatar
  • 171
0 votes
1 answer
63 views

SSDs same bandwidth as HDDs now? (2018)

I am looking at different storage options for a new server. I've noticed that both HDDs and SSDs claim 6Gb/s throughput: https://www.newegg.com/Product/Product.aspx?item=N82E16822232558 https://www....
Display Name's user avatar
0 votes
0 answers
77 views

What should I need to do after a CPU/IGP change in Ubuntu 18.04?

On the next week I'd like to change my cpu from an Intel G3930 to G4600. What should I need to do and why? Can I change without reinstall anything? Linux can handle this automatic? Do I need for ...
tenjohn's user avatar
  • 223
0 votes
1 answer
80 views

Can a standard PCIe card fit on top of VLP (Very Low Profile) memory?

I am dealing with a motherboard https://b2b.gigabyte.com/Server-Motherboard/MZ31-AR0-rev-1x#ov where multiple memory slots are situated right in front of several PCIe slots and hence a full-length ...
Matt's user avatar
  • 322
1 vote
1 answer
384 views

Where to get Hardware info about Routers

I have been trying to get information about the hardware itself from Cisco routers but I was unable to find that on Google. It seems weird I cant find that info neither on Cisco page itself. My ...
Matias Barrios's user avatar
1 vote
0 answers
2k views

DHCP not working on RTL8111 NIC (DHCP Offer not arriving at receiver)

I'm experiencing some strange behaviour with a Dual Gigabit Ethernet NIC; I've setup a computer which has multiple network interfaces to connect some industrial cameras and setup a DHCP Server (isc-...
SDwarfs's user avatar
  • 385

1 2
3
4 5
35