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

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1answer
359 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] ...
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2answers
516 views

Uncorrectable Machine Check Exception on HP DL360 G7

i have about every hour in IML (hplog) from HP DL360 G7 record: CRITICAL: CPU - Uncorrectable Machine Check Exception (Board 0, Processor 1, APIC ID 0x00000003, Bank 0x00000005, Status ...
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2answers
41 views

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

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
1
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1answer
45 views

HP ProLiant DL380 G6 with 2 x Intel x5650 CPUs

I have an old HP DL380 G6 server, I am trying to upgrade the processor. I added 2x X5650. but each time I powered the server on, the fans stat working loudly and keep like that. the server never never ...
0
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1answer
48 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 ...
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2answers
81 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 ...
2
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1answer
741 views

HP DL165G7: NMI error

One of "my" DL165 G7 Proliants has rebooted out of the blue for the second time this month. The reboot was accompanied by these system event log entries in LightsOut: Event Type Date Time ...
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0answers
41 views

When should I trust Windows Updates to give me correct drivers for my server? [closed]

I have always ignored driver updates from Windows Updates, considering that they usually do more harm than good. In the effort to update what may be outdated thinking on the subject, when should I ...
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2answers
63 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
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1answer
39 views

How big are my disk arrays?

On my SunOS 5.10 host are there 3 Sun 6140 disk arrays, and I would like to know the disk capacities. According to zpool list do I have a 5TB and 16TB pool. format shows me only 12 disks c2t1d31: ...
0
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1answer
288 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 ...
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2answers
78 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 ...
12
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2answers
855 views

What RAM options do I need to know before buying Server RAM?

This is a proposed Canonical Question about Server Memory. I have to buy a Dell R420 server and there are various combinations (1600 and 1333 MHz RDIMMS and UDIMMS) and Performance Optimized vs. ...
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3answers
295 views

How could I recover data from a physically damaged hard drive?

What hardware do I use to recover data from a physically damaged hard drive?
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3answers
694 views

intel server motherboard S5520HC not booting

This server was working fine when we took it out the rack, now it seems lifeless. I have tried all the normal checks, booted off one cpu, changed memory. When you put power to the board, it turns on ...
1
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3answers
104 views

What is the difference between a HBA card and a RAID card?

I thought I knew the difference between HBA and RAID. In my mind, HBA is offloading from the main motherboard/CPU and is simply JBOD... usually has an external SAS ports, whilst a RAID card does the ...
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0answers
13 views

Hardware Specification for a small web server application [duplicate]

I am setting up a small web site on a corporate network. I would like to know if anyone could help me specify the recommended hardware for this application. I really have no idea and all information I ...
4
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2answers
529 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
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4answers
766 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 ...
42
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7answers
3k 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 ...
0
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0answers
3 views

Fan max power consumption on MS-7395 [migrated]

I'm wondering where I can find detailed specification of a MSI MS-7395 motherboard. What bothers me is if I can use 12V 2.6W sys fan on that board. I really don't want to screw the board. Previously, ...
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1answer
63 views

Why does a low level format take very long time?

I can write ~100MB/s on a particular 4TB SAS drive when it have a file system on it, but a low level format on this drive took >16 hours. That's ~70kB/s. Since there is not filesystem and only zeroes ...
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0answers
53 views

How to ignore a specific SMART error [migrated]

I get an email about the same SMART error every day. I'd like to configure the SMART daemon to ignore this specific error, but only this, since I still want to now if anything changes or gets worse. ...
3
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1answer
3k 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 ...
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2answers
97 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
1k 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 ...
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1answer
44 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, ...
2
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1answer
68 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
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1answer
182 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
60 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 ...
4
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1answer
247 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 ...
0
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2answers
71 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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1answer
53 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 ...
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0answers
16 views

Can I Use Different Versions of CME and CUE

I am running CME 8.6 on a Cisco 2811. I would like to install NM-CUE and run CUE 7 with this. It this possible, even with a version mismatch?
7
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5answers
534 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 ...
0
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1answer
145 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
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3answers
761 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
383 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
24 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
30 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
2k 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?
24
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5answers
2k views

Do I need to RAID Fusion-io cards?

Can I run reliably with a single Fusion-io card installed in a server, or do I need to deploy two cards in a software RAID setup? Fusion-io isn't very clear (almost misleading) on the topic when ...
3
votes
3answers
526 views

How many power circuits do I have in a rack?

I'm planning to get some colocation space from someone in my area, and like most companies that offer colocation, ask about power supplies (of course) in the quote form. I'll need a power of 1000W ...
4
votes
2answers
268 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 ...
0
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0answers
34 views

Slow post times on an IBM x3650 M4 [duplicate]

I recently got IBM support involved with my new x3650 M4. I thought the POST time was extremely long especially when compared to my generation 1 x3650. Are there any other users of IBM x series ...
3
votes
2answers
555 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 ...
0
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0answers
8 views

Server setup hardware configuration for performance [duplicate]

We have developed an application using .Net ASP.Net MVC 4, SQL Server 2008 R2. Now we need to host it in a client environment in Sweden. So far we have developed in our local machine and now we are ...
13
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3answers
4k views

What happens when the USB key or SD card I've installed VMware ESXi on fails?

An SD (SDHC) card installed in an HP ProLiant DL380p Gen8 server running VMware ESXi just failed :( I encountered some ominous looking messages on the vCenter console and in the HP ProLiant ILO event ...
1
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2answers
94 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 ...
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2answers
64 views

Windows laptops similar to macbook pro [closed]

My employer provides a macbook pro with core i7, 16GB ram and an SSD drive. It is an awesome laptop. I am able to run 2 VMs, glassfish, mysqld, IntelliJ IDEA at the same time. Is there a equivalent ...