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

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1answer
189 views

How does a NIC send a hardware interrupt? [closed]

Some context. A few weeks ago, a NIC was replaced on a box without much troubleshooting to find a clear resolution to the problem. A senior administrator got into a small tiff with an entry-level ...
2
votes
4answers
13k views

HP ProLiant ML310e Gen8 early system initialization hangs on 90%

just unboxed a brand new HP ProLiant ML310e Gen8 Server. I can reach the iLO webinterface but the Server hangs on the early system initialization on 90 % with the status code 0114. I did not find any ...
0
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3answers
592 views

Sever configuration for 100 users [duplicate]

I have an issue related to what server to approximate for the following scenario (a real situation): I have a server where will be stored some videos that can be accessed through a web application ...
2
votes
2answers
261 views

High number of ethernet errors. Tool for testing the ethernet card?

have an Asus Sabertooth X79. I often get corrupted files. I checked the RAM, but memtest finds no errors. To avoid the possibility of disk errors, I tried copying files to tmpfs. If I copy from the ...
3
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2answers
4k 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 ...
0
votes
1answer
842 views

HP ProLiant DL360 G7 watchdog

I have dl360 G7 servers. some times kernel got panic. I understood, that server have hardware watchdog timer. dmesg | grep wdt [ 6.344992] hpwdt 0000:02:00.0: PCI INT A -> GSI 16 (level, low) ...
4
votes
1answer
268 views

What's the difference between a Cisco 7613 Router and a Cisco 7613 Chassis?

I see both names referred to in the manufacturer's literature. Is one part of the other? Are they both the same thing? My reason for asking is that I'm trying to standardize an organization's ...
4
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3answers
13k views

Warning for “Reallocated Event Count” S.M.A.R.T. attribute with a new/unused drive. How serious is that?

I've just looked at the health status of my old 2,5 inch 500 Gb Fujitsu drive with a popular "HD Tune" utility. It shows a warning for the "Reallocated Event Count" property. How serious is that? ...
1
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2answers
4k views

Very high load, apparently caused by pdflush

I have a server that's running CentOS 5, and it will periodically (a couple of times a day) have enormous spikes in load, and the whole server will grind to a halt. After a couple of minutes, the load ...
0
votes
3answers
390 views

How to pull hardware and software health monitoring information out of ESXi hosts in to my company's webpage?

I know the vSphere Client when connected to a host or vCenter provides the health monitoring parameters of the installed servers. But I want this information on my company's website. So the back ...
4
votes
4answers
3k views

How to shape size of SQL server resorces (RAM, CPU, and others)

It is standard story, there is fight between developers and administrators. One denunciation that database design and queries are bad while others says It is lack of hardware and amount of data. So ...
3
votes
3answers
175 views

Hardware to send a restart signal to a desktop motherboard

Have a cluster of desktop computers that are used to process data. Sometimes they crash and it would be nice of we could send a signal to the motherboards on them to restart the machine if we stop ...
2
votes
9answers
5k views

Can a motherboard that supports multiple CPUs run with fewer CPUs than it supports?

I'm looking at building out a pretty beefy server, and I was wondering if I were to get a motherboard that supports multiple CPUs such as this one, can it run with only one or two CPUs temporarily? ...
5
votes
3answers
903 views

Hardware checks for Dell R820 Servers through Nagios using SNMP

We use Nagios for monitoring. Is there a way to create hardware checks using SNMP MIB for R820 servers running ESXi5.x on them? Right now we are using this python plugin: current python plugin But ...
1
vote
1answer
167 views

Demystifying HP VC-FC 4Gb Module on c7000 Chassis

has anyone used the HP VC-FC 4Gb Modules before in a c7000? If so could you help me understand the "Connect To" column? It shows a WWPN, but when looking at our FC switch it is connected to I don't ...
4
votes
5answers
862 views

How do data recovery firms recover data from a “dead” hard disk?

The hard drive in my laptop just died, and it's been about a week since I ran a full backup. I know there are companies that specialize in data recovery from dead hard disks. I'm curious how they do ...
2
votes
3answers
236 views

Reasons to Replace Exchange Server

A little background info first. The company I work for is being put under pressure by their IT consultancy contractors to replace their current dedicated Exchange server. The machine is working ...
2
votes
4answers
3k views

Swapping out a RAID 1 mirror with larger drives on SBS 2008. Is it possible?

My organization previously set up an SBS Server 2008 on a Dell T300. This was a small setup with 2 x 160 GB disks in a RAID 1 mirror. We are running short on disk space. I would like to extend the ...
1
vote
1answer
547 views

Can't sync filesystem without reboot

I'm having an issue with a linux server. Once a week the running mysql instance hangs and there is no way to fully stop it. If I kill it, it remains in zombie status and init does not reap its pid. ...
1
vote
2answers
86 views

HP p400i - 512MB RAID Controller card

Anyone know if the HP p400i raid controller can support multiple arrays? Say if I wanted a raid 0 with 2x146GB drives, and 3x300GB drives in a raid 5, both on the same card? Also, is it possible to ...
0
votes
0answers
915 views

Linux onboard video drivers for Intel server board S1200BTL

Installed Ubuntu Server 13.04 64 bit on an Intel S1200BTL board. The official Intel cd came with a few Linux drivers, but the one for onboard video is missing. I am certain there is no hardware ...
30
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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 ...
-4
votes
1answer
1k views

Installing windows on multiple computers at the same time [duplicate]

i need to install windows on a 150 computers for a bank, i've never done anything like this before, so if anyone can help me find a fast efficient way to do so, they are IBM computers all with the ...
1
vote
1answer
173 views

What hardware profile tool exists for RHEL 5.x similar to `lscfg` or `system_profiler`?

I am looking for an equivalent tool or command to dump connected hardware (and optionally software) to a text or XML file for documenting system configuration on RHEL 5.8 specifically. I am used to ...
2
votes
0answers
400 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 ...
6
votes
5answers
19k 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.
0
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2answers
2k views

HP ProLiant DL320 G5 No Video Output, No Error LEDs, Swapped Motherboard, Same Issue

I have a HP ProLiant DL320 G5 Server that we have swapped out the motherboard with a working one, tried narrowing down removing different memory sticks, swapped out the onboard battery. I have a ...
1
vote
5answers
2k views

What is the root cause of a Hard Drive “ticking” sound after 15 min of being on?

In my office there is a laptop dell inspiron 1420 with HD of 100GB of space. The computer is about a year old, and the hard drive has a weird and annoying ticking sound. The ticking sound starts ...
18
votes
1answer
11k 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
1answer
1k views

Enabling VMware EVC on Westmere E5645 CPU only accepts “Nehalem” mode

Take the following system, a Supermicro VMware ESXi host with Intel Westmere E5645 CPUs. Part of our deployment process is to set the appropriate Enhanced vMotion Capability (EVC) level for the ...
2
votes
2answers
2k views

Dell Power Edge 2950 - E211 SBE LOG DISABLE DIMM6

Any idea of what this error E211 SBE LOG DISABLE DIMM6 could mean? Anyone have experienced this? I know that it sound pretty obvious, that is the 6th bank of my memory, and guest what: I have ...
5
votes
1answer
270 views

Sudden and permanent increase in CPU input voltage, core temperature and fan speed without corresponding increase in load

One of my servers shows strange change in its monitored parameters. Last Sunday evening one of voltage measures ( in0 which I think is Vcore) suddenly increased by 20% from ~1V to ~1.20V on average. ...
1
vote
2answers
494 views

Must partprobe before using drive?

This is a followup question to Cannot mount /dev/sdc1 on Debian 5.0, special device /dev/sdc1 doesn't exist Basically, I have 6 SATA hard drives in a machine and I'm trying to create a RAID6 ...
-1
votes
1answer
678 views

Are there any good hardware VPN clients for SOHO use? [closed]

We've had numerous support hassles with software VPN clients. Our remote devs need to connect to a number of different customer VPNs. Are there any reasonably priced VPN client boxes we could supply ...
1
vote
1answer
127 views

Why /dev/disk/by-id/ change after a suddenly server power-off?

I'm management a server that in /etc/fstab have references to some partitions using /dev/disk/by-id/DISK_ID-partN. The server suddenly power-off and DISK_ID part of /dev/disk/by-id/DISK_ID-partN ...
3
votes
4answers
6k 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 ...
2
votes
3answers
228 views

mdadm raid1, drive failure lost 14days worth of data?

I am rather confused. One evening I had a server which had died. I went to reboot it and noticed it was stuck on the "GRUB" boot screen. I then noticed a hard drive had failed. I put a new hard drive ...
0
votes
1answer
36 views

Determining the type of motherboard in a server

I was wondering if I could get some advice from the community. I am trying to identify a type of motherboard used in this particular product: LINK TO PRODUCT Does anyone know what type of ...
0
votes
1answer
963 views

Dropping Packets Randomly

I have a SuperMicro Server based on the X9DR3-LN4F+ motherboard from SuperMicro. Original intentions for the system were quite different from what it has ended up serving, but that happens. It is ...
3
votes
3answers
901 views

How to understand the LSI HBA connector specs?

When reading the specifications for the LSi SAS 9206-16e HBA, it says Storage Connectivity; Data Transfer Rates * 16 ports; 6Gb/s SAS 2.1 compliant SAS Bandwidth * Half Duplex 2400MB/s, x4, ...
0
votes
2answers
504 views

How do I re-enable the IPMI temperature sensors?

I've never had a problem reading temperature sensors with ipmitool on my server, but recently the temperature readings started showing up as disabled: # ipmitool sdr list Temp | disabled ...
0
votes
1answer
108 views

Which hardware I need for building up a backup server, which is able to store 100TB+? [closed]

we are managing a pool of 40 PCs with an attached storage of up to 3 TB each. Every weekend we copy this data to 3 other PCs with several RAID5-systems inside to have some kind of backup. We chose 3 ...
2
votes
2answers
3k views

Can I put in laptop 2.5" SATA drives into an HP ProLiant DL380 G5?

I have an HP DL380 G5 server and I was wondering if can I put in standard notebook 2.5" SATA drives? In the front where the drives go, the SATA connections dont seem to fit.
4
votes
3answers
680 views

RAID - buy spare disks at same time as originals?

When using RAID1, is it best practice to buy spare disks at the same time as the original disks to ensure you have the identical type in case they become unavailable in future?
0
votes
0answers
117 views

Performance drop after hours of runtime - how to detecting bottleneck

I am running a local database server for 1 client machine. My DB server runs redis (version 2.6.13) and mysql (5.5.31-30.3-log Percona Server (GPL), Release 30.3). I have 1 Client machine that runs a ...
5
votes
2answers
1k views

HP 4TB SATA Midline in D2600 - what disk make is HP using & why WD RE4 don't work?

Does anyone know what make of disk HP are using in their 4TB SATA Midline & why WD RE4 don't work? So we use D2600 crates with HP 2TB disks, and just buy WD2003FYYS - pop them in old HP caddies. ...
0
votes
1answer
107 views

HPe5406zl switch - stops routing after 2-4 days of uptime

I'm kind of at a loss for ideas on this one so any suggestions would be great. We have an HPe5406zl switch that stops responding after about 2-4 days of uptime. When I mean stops routing it starts to ...
2
votes
1answer
109 views

Screw size for Dell PowerConnect rack ears?

Does anyone know what the Screw size is (Thread and length) that Dell use on their PowerConnect Switches, to connect the ears to the switch? In particular the 6224 and 8224?
1
vote
1answer
335 views

Dell PowerEdge 850 PSU FAN always on [duplicate]

I have a Dell PE 850 wich is used unfrequently. I've noticed that the PSU fan is always running as soon as I plug the power cord in. So I have several questions regarding this behaviour: 1.) Is it ...
20
votes
4answers
2k 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 ...