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

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1answer
115 views

lvm and hardware raid: hardware raid 5 and raid 1 in single volume group?

I have a system with pre configured hardware RAID. It has 2 disks in a RAID1 configuration. It has a further 6 disks in a RAID5 configuration. The 6 disk RAID5 is split (by the hardware) to look like ...
0
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1answer
87 views

Put NIC under heavy load [closed]

I think I've got a faulty NIC so I want to put it under heavy but controlled load to see if and when it dies. How can I generate such a load? The NIC is in a Hyper-V host with Windows and Linux ...
13
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5answers
13k views

Should I be concerned about a high SMART Hardware_ECC_Recovered value?

I got such a message in /var/log/messages: Jun 25 06:29:27 server.ru smartd[4477]: Device: /dev/sda, SMART Usage Attribute: 195 Hardware_ECC_Recovered changed from 46 to 47 #smartctl -a /dev/sda: ...
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votes
2answers
159 views

Adding second RAID controller to a motherboard with onboard RAID controller [closed]

One of our server ASUS M4N78AM motherboard that comes with an onboard RAID controller. We have already utilised it and are running out of space. Would it be possible to install an additional RAID ...
1
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4answers
208 views

Hardware Solution to connect to multiple ISPs for one WAN

I'm looking for a piece of hardware to connect to different types of ISPs, normal DSL, cable DSL and USB egde sturfstick to offer one Internet connection with a higher cumulated bandwidth. I'm pretty ...
19
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4answers
89k views

DIMMs: Single vs. Double vs. Quad Rank

What difference does the 'Rank' of DIMMs make to server memory? For example, when looking at server configurations I see the following being offered for the same server: 2GB (1x2GB) Single Rank PC3-...
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1answer
81 views

Will an average PC run a 10 concurrent write intensive request with 50MB daily database server? [closed]

As I am a average programmer who have never been purchasing any hardware myself, I have to choose a computer for a prototype database server that will be used to serve 10 concurrent request per one ...
2
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1answer
1k views

IPMI drivers missing

I am trying to monitor and manage some servers using OpenIPMI in Ubuntu, and for some reason, when I start the OpenIPMI service, it says: Starting ipmi drivers [fail] ...
0
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2answers
216 views

1 x Raid card and 6 sata drive over 1 SFF-8087 port [closed]

I have a question regarding LSI00328 LSI MegaRAID SAS 9271-4i Can I connect 6x sata drives to -4i card or I need -8i version
0
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1answer
245 views

Fibre card to switch (mini-Gbic)

I have a server with a fibre card in it which I want to connect to my 24 port procurve switch. The 10G 2 port fibre card supports fiber transceivers supporting SR, LR, LRM. The switch has two ports ...
0
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2answers
85 views

Evaluating nameserver

We are planning to set up our own dns-server for managing all our subdomians. I wan't to set the leasetime to 1 hour. We going to expect a peak amount of 20 Million DNS requests per hour. I want to ...
0
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1answer
57 views

“Core Charge” on defective server HDDs

I have collected a pretty decent amount of SAS and SCSI disks over the years that have a predictive failure warning. I was just about to throw them all out, but wondered if any of the manufacturers ...
0
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2answers
97 views

Compatibility between D-Link Media Converter Chassis and TRENDnet Media Converter Chassis

I am working on an experimental networking project. This project will involve a number of twisted-pair to fiber optic media converters. Due to the number of converters we will be using, we are ...
0
votes
1answer
809 views

How to fix Supermicro AOC-SAS2LP-MV8 on Ubuntu 12.04 when attached drive doesn't show?

I have a Supermicro AOC-SAS2LP-MV8 controller card that I am trying to get to work on Ubuntu 12.04 server (x86_64). The card is based on a Marvell 88SE9485. So far lscpi and lshw see the card but the ...
1
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2answers
83 views

VMWare Worksation hardware

I'm gonna spec a new computer, used for running VMWare Worksation. The computer will be running a few virtual machines - A dev machine running VS-2010, a build machine, a version-control machine, a ...
1
vote
2answers
90 views

Encrypted partition and hardware failure

I have a kind of philosophical question. I'm about to set a new backup server and as time is passing encryption of data seems more and more reasonable. However what if the harddrive goes bad. I know ...
4
votes
2answers
669 views

Is there a way to check that the hardware of one server is the same as that of another?

We have three Ubuntu (trusty) servers taking requests. One of them is having a variety of weird problems that we are trying to find the cause of. Firstly, we want to rule out hardware differences. So ...
6
votes
4answers
963 views

Hardware needed for receiving and recording videocalls in Asterisk

I'm planning an Asterisk configuration that should record videocalls and then feed it to an application. From what I've researched, it seems like app_h234m is the way to go. But it's not clear to me ...
44
votes
7answers
10k views

Probability of Blade Chassis Failure

In my organisation we are thinking about buying blade servers - instead of rack servers. Of course technology vendors also make them sound very nice. A concern, that I read very often in different ...
4
votes
1answer
11k views

Server responds “bus error” to every command

I have a linux machine dedicated to MySQL server with a pretty high load. Today I woke up and was terrified to see that database server is down. I could connect to it via SSH, but it was responding ...
0
votes
2answers
3k views

RAID consideration for 24 Disk Array

I have here a 24 Disk Array with 3.7 TB disks in it. What would be, performance wise a good configuration when using a RAID 6: RAID 6 over all 24 disks or should I use 2x12 disk RAID 6 and than a RAID ...
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5answers
2k views

How to monitor where system is writing/reading disk? [closed]

My system is ubuntu. I want to find out what uses my disk. In fact, I want to see not exactly what uses it, but which parts of it are used. Which files are written and read. I am building home server,...
0
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1answer
57 views

10 Screen, Two Separate PC day trading setup - Questions [closed]

Currently i have 6 monitors on one PC (4 are data streaming, 1 for trade execution, 1 for web browsing) I would like 10 monitors, however, to reduce lag id like one PC to deal with data streaming, ...
0
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0answers
85 views

How to get VmList from CiscoUCS?

We are using XML API to connect CiscoUCS Manager and get all the hardware components. We are in the requirement of getting all the VM deployed in the bladeServer. But not able to find these ...
2
votes
1answer
128 views

Cisco switch, white residue in switch ports

I have 2 cisco small business switches, unknown age and provenance, both have developed a white residue on some of the switch ports as below image: Any ideas what causes this? It looks a little ...
0
votes
1answer
936 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) ~~~~~~~~~~~~~~...
0
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2answers
84 views

Is it safe to put non-standard units inside racks?

Is it unsafe or might the request be denied by some companies that offer colocation to put non-standard units inside a full rack? This is my case and, speaking of dimensions, it fits. Also, as you ...
0
votes
2answers
954 views

Are AMD Opterons more reliable than AMD FX CPUs?

AMD Opteron CPUs are marketed for servers, and FX CPUs for desktops. However, both support ECC, and while only Opterons support registered RAM, the issue is unrelated to reliability. So, what makes ...
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votes
1answer
68 views

Hardware solution for small IT company [closed]

I'm starting up a small programming company for web development soon, so I have couple of questions and dilemmas in my mind. First of all should I go for standalone machines for each programmer or ...
8
votes
5answers
1k views

Hot spare host vs cold spare host?

We have several hosts where we have an identical hot spare host, which is patched and updated so it is very close to have to same software and config. In case of failure the network cable is switched ...
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1answer
104 views

Commodity hardware related, i'm searching for a ILO, BMC, ALOM and in general IPMI alternate solution [closed]

I'm searching for a composite solution to have the same features of an IPMI controller on commodity hardware independently from arch/model and without excessive device dependencies. Essentially the ...
0
votes
1answer
598 views

LSI SMC2108 hardware to HBA

I have SMC2108 (LSI controller) hardware controller, which I want to replace with LSI SAS 9207-4i4e (it's HBA - fakeraid). Can I switch the controllers and to access my data (even with readonly). I ...
5
votes
3answers
2k views

Are OTP/OATH (RFC 4226) Hardware Tokens Re-seedable?

We set up a two-factor authentication system that uses Google Authenticator to use OTP via mobile phone apps. Some of our users however don't have smart phones so we want to be able to use hardware ...
2
votes
3answers
2k views

Performance of HP SSDs in HP servers

I am trying to find performance data about the official SSDs offered by HP for their servers. I can hardly find any specifications on the HP website or somewhere else on the Web. The device I am ...
1
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1answer
385 views

Box to create a VNC to multiple servers' VGA output and keyboard

My boss has ordered me to find a box that we can connect to our 8 servers, so that we can view the VGA output and use the keyboard as if we were sitting directly in front of the server (i.e. see that ...
0
votes
1answer
118 views

DHCP server hardware [closed]

I have a user who needs to set up a DHCP Server for about 8000 users. Can I set it up on regular PC hardware. So far we have not set it up for more than 200-300 users. Are there anything which I need ...
5
votes
2answers
6k views

How to reset password for HP Proliant ML330 G6

We have HP Proliant ML330 G6 and its BIOS is closed with password. Password is already forgotten and we can't get there. Is there any way to crack or reset a password at this box?
5
votes
2answers
10k views

CentOS not detecting Intel 10G (ixgbe) interface

I have a server with CentOS 6.5 installed with 2x 1Gbps Ethernet Cards, I have added a new interface (Intel(R) 10 Gigabit PCI Express Network) but the problem. is the system is not detecting the ...
3
votes
2answers
791 views

Are transceivers hot swappable?

Are transceivers in general hot swappable, and if not, how do I find out if these are? Using these adapters 665243-B21, HP Ethernet 10Gb 2-port 560FLR-SFP+ 665249-B21, HP Ethernet 10Gb 2-port 560SFP+...
1
vote
2answers
395 views

Pros and cons of virtualization [closed]

I'm aware of many questions here discussing similar topic, but in this case, I'll try to be much more specific. One target scenario is small to mid-size ISV, the second scenario is an enterprise ...
1
vote
0answers
214 views

SMI generation / detection in GRUB / real mode vs. in Linux

I'm trying to get an idea of the frequency and duration of SMI events on a Supermicro X10SAE C226 board (2.0a BIOS) with E3-1245v3 Haswell CPU. The Intel BIOS Implementation Test Suite (BITS) SMI ...
1
vote
1answer
99 views

Change Hardware Resources During Certain Times Of Day On Windows Azure Virtual Machine

I thought I read you could change the hardware resources during certain times, days, etc for Windows Azure Virtual Machines. I however don't see this option, am I missing it in the Azure portal or is ...
3
votes
1answer
1k views

Determine what MAC addresses are connected to a given port on a Netgear GS724T via SNMP?

In looking through the output of an snmpwalk against our GS724T Netgear switch I was surprised that it doesn't list what MAC address(es) are connected and/or using a given port on the switch. This ...
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votes
1answer
988 views

Is Dell Poweredge 2950 faster than Dell Poweredge R820? [closed]

I have a 10 year old Dell Poweredge 2950 that will be replaced with a Dell Poweredge R820. Both of these machines are set up as a Virtual Machine Host Running Hyper-V. Both Operating Systems are ...
0
votes
1answer
159 views

How to determine VMware ESX server requirements for n VMs?

I am going to buy a high-end server for my department's daily usage. On this server, I am planning to launch 2 DB servers, 2 Application Servers and around 10 ordinary development PCs on the VMware ...
0
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0answers
74 views

False flag multibit errors on highest populated DIMM socket on second CPU of Sunfire x2200. Faulty CPU or faulty motherboard?

I'm testing 2GB ECC Registered DIMMs in a Sunfire x2200. Recently the system event log (SEL) began logging Multibit Errors on the highest populated DIMM socket on CPU1. With 8 DIMMs on CPU1, the SEL ...
0
votes
1answer
390 views

Benefit of Dell PERC Card for SSD

I bought a dell workstation for using with mysql and python. It came with a single HD and PERC 310 controller. I then installed the OS on an ssd instead to speed things up. However, there seems to ...
4
votes
3answers
4k views

How to diagnose repeated “Starting up database '<dbname>'”

I have a SQL 2008 server which is predominantly used as a development server, in the last two weeks it has been having occasional "fits", I have isolated the cause of these fits as CHECKDB being run ...
0
votes
1answer
201 views

PCI Extender and 1GB Ethernet Performance

One of my server has 2 PCI slots which has already plugged with 1GB Ethernet cards. I want to add two more 1GB NIC to this server. I've found on ebay this pci extender. I want to ask, because I didn'...
4
votes
1answer
749 views

DDR3 10600 memory running at 533mhz

I bought a second-hand HP ProLiant DL160 G6 a year ago with 48GB configured in it. I discovered checking with cpu-z and doublechecked with speccy the memory runs at only 533Mhz. I checked the ...