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Questions tagged [hardware]

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

There are multiple, physical components that are required for a computer to function. This is collectively referred to as the "hardware". The most notable components inside of a computer system is the RAM, Hard Disk (or hard drive), CPU, and Power Supply.

Outside of the case, however, hardware exists as well. Some of these components include the keyboard, mouse, and monitor.

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Fiber multipath fails: Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK

I am trying to copy(~7TB of data using rsync) between two server in same data center in the backend its using EMC VMAX3 After copying ~30-40GB of data multipath start failing Dec 15 01:57:53 test.example.com multipathd:…
Prashant Lakhera
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Why are RDIMM/LRDIMM memory modules arced?

I read about registered memory and noticed that RDIMMs(and also LRDIMMs) are arced: What is the purpose of that? Why are RDIMM/LRDIMM modules arced?
Martin
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Devices / Drivers not working in Windows 7?

For anyone who is running the Win7 RC, are you running into any unexpected problems with regards to hardware incompatibility? If so, have you been able to work through them in what you would call a reasonable fashion? Any big name things out there…
squillman
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How to mount an USB drive under VMWare ESXi 5.5?

I want to mount an USB drive to VMWare ESXi 5.5 host. The USB drive is visible with lsusb : Bus 01 Device 03: ID 154b:0095 PNY But not under /vmfs. Under /dev/disks/ I see many entries, but dunno if one of those is my USB disk: mpx.vmhba32:C0:T0:L0 …
db_ch
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Why does a ZFS resilver scan the entire pool?

I have a zpool where I have just replaced a failed disk, and started a resilvering to the new disk. What I don't understand is, why zpool status says it want to scan 129TB, when the size of the vdev is ~30TB. When I look at iostat -nx 1 then I can…
Jasmine Lognnes
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Can I safely mix RAM (ECC) sizes in a server board?

I have a server (actually used as workstation) with a Supermicro X8DA6 motherboard, with 2 installed Intel X5650 processors. It uses ECC RAM. It currently has 6 Kingston KVR1333D3D8R9S/4GHB dimms installed in 6 of its 12 memory slots (3 per…
Francisco Zarabozo
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SAS Expander backplane performance drops when more than 8 drives are active?

We are using an LSI 9211-8i raid controller (flashed in IT mode) in a PCI-e 2.0 x8 slot. It's connected to a supermicro SAS 836EL1 backplane with 1 SFF-8087 cable. We have 16 drives installed. When we do a 'badblocks' test of one disk performance is…
Jorne
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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 ethernet information with (ifconfig -a) or…
Areeb111
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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+ and these transceivers 455883-B21, HP BLc…
Jasmine Lognnes
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Any reason to use a rack-mountable server if I lack a rack to mount it on?

I'm somewhat new to server hardware, and was wondering if there was any reason to purchase a 19-inch-rack-mountable server as opposed to a standalone (tower) system, or any difference between the two other than form factor. We're running a small…
lfaraone
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New server causing weird noise in headphones and speakers; Is this electromagnetic interference? What's causing it?

I work for a small radio station that recently acquired a refurbished Dell PowerEdge 1950 server. After placing it in the server room along with several other servers and sound processing hardware (including a sound mixer), we noticed that the…
haroba
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How do I donate obsolete or surplus computers?

How can I donate older, unused or surplus computers? What facilities or organizations exist? Can I ship equipment to them? Is it tax deductible? I'd like them to go directly into educational or low-income use, rather than being recycled for scrap…
Mark Renouf
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What is the name of this screw? (from HP ProLiant quick-deploy rail kits)

I need the name of the screw for the HP quick deploy rail kit. The screw clicks into the square holes of the rack. It is a Gen4 Rail kit but the screw is like the Gen8 Rail kit ones. I called HP support, but they couldn't really help me.…
kockiren
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ECC errors in L3 cache - critical or not?

On a linux server (8x Quad-Core AMD 8378), I'm getting the following errors: [Hardware Error]: MC4_STATUS[-|CE|MiscV|-|AddrV|CECC]: 0x9c294c00001d018b [Hardware Error]: Northbridge Error (node 4): ECC error in L3 cache tag. [Hardware Error]: cache…
L3error
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interpreting stickers on RAM

Does anyone know how to read the labels on RAM? Or have a link to a good resource for reading the labels? Here's why I'm asking: I have a third-party Dell server in my rack. The vendor sent us additional memory to install, but it doesn't work. The…
longneck
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