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

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Is it possible to disassemble an APC Netshelter SX enclosure?

I need to move an APC Netshelter SX 48U from one room to another, but the new room is lower than the current one and I cannot install it without disassembling it. According to APC, these enclosures ...
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2answers
93 views

Theoretical hardware recommendation for low-latency infrastructure [closed]

I do algorithmic trading as a hobby, and I'm about to step up my game in terms of latency. I have two questions regarding appropriate hardware and database software. Question 1. Before I will ...
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1answer
262 views

HP DL380 Gen8 doesn't turn on

We have a HP DL380 Gen8 in one of our data center and it is connected to a UPS, I checked the ILO and know that due to unstable electric powe,r the server has been shutdown with the following error: ...
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2answers
108 views

Can I take a mirrored raid drive and use it in another machine

I have about a dozen low end servers of varying makes and models and most have mirrored raid. I'm a bit confused about whether after a disaster (that hasn't harmed the drives) can I can take a drive ...
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2answers
519 views

Which STONITH hardware for power fencing?

I'd like to setup a two node high availability cluster using corosync/pacemaker/drbd. For that, of course, I need fencing. As far as I understand, all IPMI/iLO/... solutions do the job, but only as ...
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1answer
106 views

Windows server 2012 R2 drivers for Fujitsu CELSIUS R930 Power

I'm trying to install Windows Server 2012 R2 on a Fujitsu CELSIUS R930 Power workstation and have problems finding the right drivers. Fujitsu "tech support" won't help me - they don't support server ...
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2answers
77 views

my dell power edge 2900 power off after 1- 1.5 hours automatically

My Dell PowerEdge 2900, running Windows Server 2012 powers off after 1 - 1.5 hours automatically. Is a fan speed fault on the front panel is, but that should not stop the server. I swapped a ...
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1answer
192 views

Can you put different CPUs in a dual-cpu motherboard?

I have an ASUS KCMA-D8 motherboard with two Socket C32 CPU sockets. Only one is used right now. Can if put a different (better) CPU in the other socket and have the motherboard use both? Or do ...
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1answer
57 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 ...
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1answer
65 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 ...
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2answers
70 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 ...
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1answer
66 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 ...
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1answer
250 views

Choosing a Server Chassis based on Server Board's Requirements [closed]

I'm a newcomer in the world of assembling servers from ground up. First of all, I can choose a server board based on my needs. Then, the getting the following components are pretty much ...
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2answers
106 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
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1answer
460 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 ...
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1answer
41 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 ...
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1answer
66 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: ...
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2answers
1k 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
2k 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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2answers
80 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 ...
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2answers
594 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 ...
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1answer
412 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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67 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 ...
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1answer
82 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 ...
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2answers
70 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 ...
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1answer
2k 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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1answer
62 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
27 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?
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2answers
283 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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2answers
611 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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1answer
59 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 ...
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5answers
713 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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3answers
797 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 ...
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1answer
111 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 ...
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1answer
76 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 ...
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3answers
767 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 ...
5
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2answers
2k 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 ...
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2answers
599 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 ...
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2answers
196 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
89 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 ...
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0answers
60 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 ...
3
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1answer
513 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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1answer
624 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 ...
1
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1answer
65 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 ...
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0answers
34 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 ...
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1answer
220 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 ...
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1answer
405 views

HP Proliant DL380 G3 not booting. Error “1611 fan 7 not present” after changing power supply

I inherited an HP proliant DL380 G3 some years back and it's been working faithfully as a games/web/build server. At some point during the past year where I haven't been using it the power supply ...
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1answer
82 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 ...
3
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2answers
665 views

Upgrading RAID controller to 4kn - do I have to reinitialize the array to use 4kn?

I have an enterprise-grade workstation with an Adaptec 6405E RAID controller in it. According to Adaptec, this RAID controller does not, and will never be able to, natively support 4K disk sectors. If ...
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1answer
430 views

ECC CE (Correctable Error) occuring every 5 minutes exactly

On one of our computing nodes I am getting ECC CE (correctable errors). What is a little bit peculiar about is is that errors are not massive, just a single occurrence exactly every 5 minutes. ...