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Questions tagged [hardware]

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

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1answer
1k 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
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1answer
2k views

hp proliant dl160 g6 fan conversion

OK so I came across this forum a back while looking for an answer to this question and found some excellent advise that I would like some additional info for. I have purchased the above server in a ...
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0answers
7 views

MCE reports errors like: mce_notify_irq: 5 callbacks suppressed

I see following info in logs: May 20 03:53:10 server kernel: [18372.886560] mce_notify_irq: 5 callbacks suppressed May 20 03:53:10 server kernel: [18372.886561] mce: [Hardware Error]: Machine check ...
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3answers
3k views

route packets through hardware loopback interface, not lo

My embedded Linux board has 3 interfaces: eth0 - For all outbound traffic eth1 - A hardware loopback (traffic leaves board, but comes immediately back in the same port) lo - Standard loopback ...
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0answers
14 views

Does a System x3550 M4 support Windows Server 2012 or better?

We have a SQL server running on a System x3550 M4 with 32 GB Memory. While we started the procurement process to replace it, it may take up to two years to get the funding and approvals. It is ...
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2answers
2k views

Intel SSB temperature sensor

I have an Intel server motherboard that is reporting an issue with the SSB temperature sensor. I have searched for the acronym but cannot find a definition. What does SSB stand for?
17
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1answer
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 ...
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0answers
11 views

Deriving hardware requirement from QPS? [duplicate]

Say I need to design the site like eCommerce with below QPS details A. 200 K write QPS B. 2 million read QPS Now I need to do capacity estimation based on QPS input. By capacity estimation I ...
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1answer
17 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?
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3answers
2k views

Source for custom rackmount chassis to build bulk storage server?

I need to build a couple of really large bulk storage servers for a project I am working on. I don't need fast response, just big, dumb storage. lots of it to hold statistical data going back to the ...
61
votes
8answers
6k views

Moving Servers Within The Same Building

Here's my scenario: I'm a developer that inherited (unbeknownst to me) three servers located within my office. I also inherited the job of being the admin of the servers with a distinct lack of server ...
0
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1answer
2k views

How to find L1, L1i, L1d cache from dmidecode output?

How to find L1 , L1d, L1i cache from dmidecode output ? (NOTE: dmidecode file is from different server for which I do not have access, So I can not run lscpu command to find the same) ~~~~~~~~~~~~~~~...
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6answers
22k views

How to recover from a drive failure in a RAID 5 configuration?

This morning a drive failed on our database server. The drive array (3 disks) is setup in a RAID 5 configuration. While we wait for a drive replacement we are preparing for a recovery strategy. Users ...
2
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2answers
2k views

Are SAS Drives really worth their money and are they much better than todays latest SATA?

The price difference between SATA and SAS is really very big. Of course I understood, that SAS drives have their advantages, but does this really legitimate a price difference of 100% or more? Should ...
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2answers
1k views

R610 PERC 6iR - Incompatible with SATA

I purchased a couple R610 servers which has been a constant source of frustration lately. I got a heck of a deal on them with a single 2.93 Ghz processor and 96GB RAM, so I cannibalized one and got a ...
1
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1answer
968 views

Old Proliant DL360G5 failed and now won't boot

An old server I know but I am a very small business on a shoestring :) I have a Proliant DL360G5: Single PSU All memory slots full (16GB) 2 CPUs (Xeon) 2 x 250GB drives mirrored Running Windows 2012 ...
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0answers
20 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 ...
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4answers
4k views

DIY Hadoop Cluster - Heat & Dust issues?

Following are links of my DIY 6-Node Hadoop Cluster using i3 Machines, What is the best possible way to protect my design from dust & provide better heat transfer? What should I use to cover four ...
4
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2answers
1k views

Server freezes without kernel panic

We are running a KVM node which is crashing irregularly showing a very strange behaviour. The interesting thing is that we already had this problem with another node which crashed every 1-2 weeks. As ...
3
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3answers
1k views

PCI-Express hierarchical architecture — where is the weakest node

I'm wondering about the fact, that PCI architecture is hierarchical. Therefore, even if I have two PCIx4 slots, it's possible that I will not be able to fully utilize it, because the slots will ...
0
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1answer
130 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, ...
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1answer
10k views

S-SATA Vs I-SATA (PCH, SCU)

My mother board contains SATA-3 ports however some are listed as S-SATA and I-SATA as shown in the manual: I have plugged some harddrives in each of these ports and they both work fine. However I ...
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7answers
2k 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 ...
2
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2answers
978 views

SSD goes undetected/offline unless cold/hard booted

I've had a SSD for a little over a year on a sever. And once in a while, the server will bluescreen/be completely unresponsive. I've found out that it's the SSD going offline while the system is ...
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2answers
6k views

Configure raid for IBM x3200 M2

I have a x3200 server and I have planing to use raid 1 for mirroring Sata Hardisk . I am searching on google to find raid server manager for x3200 , but no luck . Is there another way to configure ...
2
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1answer
1k views

Hardware/BIOS - IBM x3200 m2

When I turn on my machine, the display is not throwing any output to it. The fans are running fine. The LED lights indicate no error, ' Only two LED's are blinking "Mini-BMCheartbeat LED" and "...
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4answers
14k views

HP D2700 enclosure and SSDs. Will any SSD work?

I've got an HP D2700 enclosure that I'm looking to shove some 2.5" SSD drives in. Looking at the prices of HP's SSD drives vs something like an Intel 710 and even something less 'enterprisey', there's ...
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0answers
20 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 ...
2
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1answer
119 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 ...
3
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3answers
16k 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. ...
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1answer
28 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 ...
0
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3answers
862 views

How can I enable caching on the RAID card or Hard Disk(s)

I've got a HP ML350 G5 server running 6 disks as two RAID-5 configurations. This server has been notifying me of an empty battery on the E200i card. This seems to result in disabled cache: read and ...
28
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6answers
31k views

ZFS best practices with hardware RAID

If one happens to have some server-grade hardware at ones disposal, is it ever advisable to run ZFS on top of a hardware-based RAID1 or some such? Should one turn off the hardware-based RAID, and run ...
7
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3answers
22k views

VMware - persistent “Host memory status” alarm in vSphere

I have a particular VMWare ESX 4.1 host that has a very persistent "Host memory status" alarm. This is running on an HP ProLiant DL360 G7 server. The HP ILO and System Management agents don't know ...
0
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0answers
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 ...
0
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2answers
798 views

Testing ATI hardware for OpenGL

We have an application that uses OpenGL, and historically it has run lousy on ATI cards, although results have been different depending on card/driver combo. We're trying to put together a test ...
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5answers
34k views

ProLiant DL380 G7 won't boot, solid amber power LED

I have a problem with an HP ProLiant DL380 G7 that leaves me without much in the way of troubleshooting approaches. This server will not boot. It was stored in a datacenter, and I went to retrieve it ...
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2answers
1k views

What should I check/replace first in response to mcelog “Memory address parity error” / MEMORY CONTROLLER AC_CHANNEL0_ERR messages

I have a server that kernel panics every few days. mcelog tells me: Hardware event. This is not a software error. MCE 0 CPU 6 BANK 8 MISC 0 TIME 1317928482 Thu Oct 6 15:14:42 2011 MCG status: MCi ...
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2answers
4k views

To Be Filled By O.E.M. We are the 'OEM' and we don't know how to do it. Any hint?

We send appliances to customers, and since some days ago the machines come from a new vendor. The machines have new BIOS and motherboards: http://www.dmtf.org/standards/smbios We would like to use /...
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1answer
1k views

Hardware Virtualization Technology Enabling Issue

I have purchased an Intel i7 3770 and an Asus P8Z77-M Pro; for some Windows Server 2012 testing. In the BIOS I have enabled the "Intel Virtualization Technology", and have several Hyper-V based ...
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1answer
1k views

Minimum Processor Requirements to set up Openstack on a Laptop/Desktop(not for Devstack setup)

I am planning to do a POC and setting up OpenStack in nonCommercial setup.I do not want to go with Devstack.I am confused as to how much is the minimum processor requirement if i plan to setup ...
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vote
1answer
2k 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 ...
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3answers
12k views

What is the “bezel” and why does Dell charge 15€ for it?

I'm in the process of shopping around for a new server and came across the "1U Rack Bezel" option for Dell's PowerEdge™ R310 server. The only hint is the german heading "Frontblende" which seems to ...
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1answer
44 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 ...
4
votes
7answers
2k views

Tips and tricks for identifying the dying hard drive

I have a raid 1 that has failed partially. The controller tells me the raid is degraded, but does not tell me which drive is failing. When I look in My Computer, I see that the controller split my ...
4
votes
1answer
4k views

What is this column in /proc/interrupts?

Can someone assist me in analyzing the data in this output from my /proc/interrupts file? $ cat /proc/interrupts CPU0 CPU1 0: 22 0 IR-IO-APIC 2-edge timer ...
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12answers
11k views

Where did “Wait 30 seconds before turning it back on” come from?

I guess these are the kinds of things I think about on the weekend... When I was growing up (not that long ago) my parents always taught us to wait 30 seconds after shutting down the computer before ...
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1answer
34 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 ...
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2answers
441 views

Power requirements for SAS enclosures

I have a Supermicro 4u enclosure with dual 1400 watt power supply running on 220v. There are 24 drive bays. The power supply is rated at 4amps for the 5v output. If I have 24 drives that requires ....
1
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1answer
45 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 ...