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

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2answers
523 views

HP ML150 G6 upgrading RAM/CPU beyond specs?

I am being told that some limits on some HP servers can be crossed. Do any of you have any experience with that? A ML150/G6 is limited to 48GB RAM but I have been talking to a German company that ...
-1
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1answer
113 views

Implementing hardware virtualization for custom hardware

When using QEMU/KVM there are certain network adapters that are supported and emulated. If one wanted to emulate the guest OS's original network adapter (e.g - a Broadcom interface that was present on ...
3
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0answers
473 views

Adaptec pm80xx Driver Drops Drives Randomly

I'm building a ZFS NAS using an Adaptec ASA-71605H HBA on Ubuntu 12.04.4. Modern Linux kernels ship with the open-source version of the required pm80xx kernel module. Adaptec provides a driver for ...
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votes
2answers
471 views

No advantage from SSD boot drive for 24/7 server? [closed]

Since my OS and applications are loaded into memory upon boot, isn't there no advantage from having my OS on an SSD boot drive for a server that is kept up 24/7? I know there are several assumptions ...
10
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1answer
949 views

What is the term for this piece of hardware?

This is a silly question but what is the "official" term for what is carrying this hard drive? I need to know if I can purchase it separately from the hard drive.
4
votes
2answers
527 views

Difference between SAS multilane, direct-attached HDD and expander backplane?

What's the difference between multilane, direct-attached HDD and expander for SAS backplanes? Supermicro chassis description page Direct attached HDD backplane (TQ version), multilane ...
8
votes
3answers
511 views

General Advice about an archive solution. ~15tb and growing.

I need a better storage and archive system for my small business's files. Specifically the files are completed video projects. Beyond time and cost limitations what is holding me back is I don't ...
0
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0answers
219 views

adding a 2nd network card to linux

I'm on linux mint. I've just installed a PCIe gigabit network card (from eBay!) into my linux machine. I've already had to follow this guy's instructions to get the onboard NIC working correctly. I ...
0
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1answer
65 views

Where can one find good documentation describing memory-rank “sparing”?

Where can I find good documentation describing memory-rank "sparing" (for computer-hardware memory-protection configurations)? I'm seeking to clarify what benefits it provides and how it's typically ...
1
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1answer
506 views

Fastest server ram configuration for 48GB?

I have an HP ProLiant DL160G6 server, with 2 CPU's and 48GB ram, with following modules: 4x 8GB Module - DDR3 1066MHz (KTH-PL310Q8/8G) 4x 4GB Module - DDR3 1333MHz (KTH-PL3138/4G) I'm re-purposing ...
1
vote
1answer
563 views

Dynamics CRM 2013 hardware requirements [duplicate]

What is the estimated hardware requirements for a Dynamics CRM Implementation that will be accessed by about 30 users with about 200K to 500K contact data? The implementation most likely will use ...
26
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2answers
2k views

HP plan to restrict access to ProLiant server firmware - consequences?

I've been a longtime advocate for HP ProLiant servers in my system environments. The platform has been the basis of my infrastructure designs across several industries for the past 12 years. The ...
2
votes
1answer
5k views

ESXi host losing connection to vCenter

I'm having a very odd issue with a single ESXI host. I have 2 identical hosts, core i3, 6 nics, 16g ram. 4 of the nics are used for Management, vmotion, vm network, all on different vlans. They ...
5
votes
2answers
3k views

2012R2 Storage Spaces Memory and CPU requirements

I am looking at possibly using Storage Spaces in Server 2012R2 to build a NAS off of. I am looking to build a fairly large unit, 12-14 HDDs, in a "RAID10" like setup (I know storage spaces does not do ...
1
vote
1answer
143 views

HP SL250s will not boot from the network, does not appear to DHCP

I have an HP Proliant SL250s Gen8 (right-hand) server which is apparently not able to boot from the network. If I configure the system to PXE boot in the BIOS, or if I hit F12, it does start up the ...
2
votes
2answers
397 views

SAS disk and intel motherboard

What kind of Cable shall I use to connect [ http://www.amazon.com/SAS-Enterprise-Hard-Drive-WD1001FYYG/dp/B0090UELTW ] and server board: http://ark.intel.com/products/56334/intel-server-board-s2600cp4 ...
1
vote
2answers
191 views

Red hat reporting more NICs than are physically present

We just deployed several servers (hp dl360p g8), and after the initial boot we're noticing that none of the network devices are showing up as cabled. Ethtool shows no link anywhere. Even more weird is ...
1
vote
1answer
78 views

Determining speed of PCI Express [closed]

I am trying to use a new NIC in my server however I am getting this message, "This Solarflare Network Adapter requires the equivalent of 8 lanes at PCI Express 2 speed for full throughput" I have ...
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votes
2answers
171 views

Options for SATA ports on motherboard for Files server [closed]

I am planning to build a big file server. (Windows or FreeNAS). I need at lease 300T of space. what options do I have to RAID all disks together? I mean on physical level what kind of connection ...
7
votes
2answers
3k views

Why are “sectors per track” still relevant on a modern OS with modern drives?

I am building out a new machine and the raid controller is asking me for sectors per track. I haven't had to deal with disk math in a long time (1998?), and I can't find anything that pertains to ...
0
votes
1answer
169 views

How to perform Hardware disaster recovery with backup server

I have a two windows server 2003 R2 servers with same configuration(same processor,same motherboard etc). One is original server and another one is backup server(Not to store backup files,it is a ...
0
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2answers
138 views

Cisco IPSec Hardware Requirements

In order to use IPSec on 2811 and 2651XM Cisco routers, does one need any particular hardware module(s) or just the appropriate software?
0
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1answer
60 views

Calculate requirements for a caching/forwarding-only nameserver

I am considering a caching/forwarding nameserver to be used by internal servers to speed up name resolving. Is there a way to calculate some reference values to figure out its requirements? I simply ...
0
votes
1answer
39 views

What sorts of hardware exists for doing enterprise level web serving in small packages?

My current project involves sending computers to clients that they will plug into their network. These computers fill the role of a web server, primarily. During a peak hour one of these servers will ...
1
vote
1answer
2k views

HP ProLiant DL385 G6 - “Fan Solution Not Sufficient” error

I have a HP DL385 G6 that is acting up. Weeks ago it stopped booting with an error of Fan Solution Not Sufficient. The front panel indicating that fans 3 and 4 were down though both these fans are ...
0
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1answer
35 views

How are BLKIDs Assigned?

Suppose I have a situation like I have installed /etc and /boot in two separate partition which belongs to an USB device , and the rest of the system / and /home in the HDD. Now my question is I need ...
3
votes
1answer
448 views

Using consumer grade hard drives in a server

My company needs to upgrade a couple of (very) old servers we are currently running, but we are kinda strapped for cash. We got a great offer on a pair of HP DL360 G6 servers, but the hard drive cost ...
1
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1answer
79 views

AST2150 Console Redirection (KVM over IP)

I am using AST2150 Base Board Management Controller which supports KVM over IP. It's connected to the network. Everything is good except the Console Redirection. The console redirection comes up as a ...
2
votes
2answers
384 views

vmware on unsupported hardware, should I avoid at all costs?

I have a relatively old Supermicro Superserver 6015v-m3 with a x7dvl-3 motherboard, checking compatibility on vmware website, is compatible only with esxi 3.1 I ignored and tried installing esxi 5.5, ...
0
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2answers
94 views

A backup system alone: tower or rack chasis?

We'll install a backup system in following possible configurations: two servers in cluster with a SAS JBOD attached to them one server with the same JBOD in back However I'm thinking if really is ...
-2
votes
1answer
414 views

replacing failed hard disk in raid 1 on dell emc cx300 [closed]

how can I replace failed disk in slot 12 in raid 1 on san dell emc cx300 I HAD Configured the san with hot spare hard disk in slot 13. Is it enough to remove it from it's slot an put instead of it ...
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votes
2answers
110 views

file server hard disks for 20 concurrent users and 2 TB of data. Do i need SAS or SATA disks? [closed]

I plan a new fileserver with 20 concurrent users and 2 TB of online storage. I plan to divide this data volume over 3-4 separate disks. I plan to buy 10k rpm disks. Implementing RAID-1, this would ...
2
votes
1answer
2k views

Can't find fan speed setting on Supermicro X9DRW

I have one Supermicro server with a X9DRW board, BIOS v1.0a, that does not seem to have any way of controlling fan speed. I've looked through the entire BIOS, including the usual location of ...
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votes
2answers
251 views

High density disk bay rack chassis - why such a big difference in price?

We're looking for a chassis with 45-60 bays for SAS/SATA disks and we found some 60-bay enclosures at ~ $11000 (see here and here for example - there are others as well). However we found this one ...
2
votes
1answer
4k views

HP ProLiant DL380 G7 servers will not POST

We have just received 2 HP DL380 G7's from our DR site. They have been running fine at the site for some time but we have tried to power them up in our DC and they will not post. We get a very brief ...
1
vote
0answers
162 views

best setup for fast sustained streaming (sequential?) disk writes

i am setting up a high speed/high resolution scientific image acquisition system. i need data write rates of ~1 GB/sec sustained for ~1 hour. i don't have experience with raid, but my plan is to ...
12
votes
3answers
3k views

Force renegotiation of PCI Express link speed? x2 card reverts to x1 width

In an effort to circumvent compatibility and cost barriers to using SSD drives with newer HP ProLiant Gen8 servers, I'm working to validate PCIe-based SSDs on the platform. I've been experimenting ...
10
votes
2answers
461 views

Linux kernel detecting wrong processor frequency

After a cold boot of a 6.0.8 Debian server (HP ProLiant), ntpd played havoc with system time: offset and jitter with respect to the usual and reliable reference time servers growing without limit. ...
4
votes
1answer
103 views

Should APIC be used on VMs?

I'm provisioning some VMware and Virtualbox VMs, both 32 and 64 bit and all my boot commands start with /install/vmlinuz noapic. Searching for information about APIC etc. around the web doesn't give ...
0
votes
1answer
122 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 ...
3
votes
1answer
3k views

What is a maximum useful length of SATA/SAS cable

The server in question is DELL PowerEDGE SC1435. I am thinking about buying a LSI 1068e based card with two internal SFF-8087 ports. I intend to use the machine with external multiple hard disk ...
4
votes
2answers
57 views

hba for software raid

In a software raid environment, is HBA failure the same as a hardware RAID controller failure? Do you still have to find the same model HBA to put into a different server in order for the drives to ...
0
votes
1answer
78 views

IBM x360 DVD drive?

My x360 server has only a CD drive in it. I wish to upgrade and install a DVD drive, so it is easier for me to install software without sharing my workstation DVD drive all the time. According to ...
0
votes
2answers
93 views

What amount of physical RAM would a typical “commodity class” server have, as of late 2013? [closed]

I'm trying to spec out servers for my company's infrastructure group to build. They tell me anything more than 2GB is too much, which I find ridiculous considering cheap DRAM is about 15 bucks a dimm ...
-3
votes
1answer
108 views

How to estimate a server specifications for this particular system? [closed]

I'm working in a college project and I'm supposed to specify the server's hardware to hold a system. The system is some kind of social network. And it is supposed to hold around 100 000 users the ...
16
votes
3answers
10k 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 ...
0
votes
1answer
3k views

Upgrading a PERC h310 to a PERC H710 mini RAID controller on a Dell R620

I have an ESXi 5.0 Free license host using an internal Datastore (RAID 5, 5 Disk) that was configured with a Dell PERC h310 RAID controller. The disk performance was very poor, so I upgraded to the ...
0
votes
1answer
840 views

How to see all nics in Solaris 8/9

I have a questions regarding how to see all NICS in the solaris 8/9 SPARC boxes. Even if they are active/inactive. dladm show-link command does not work. cat /etc/path_to_inst could but it's hard to ...
4
votes
1answer
472 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 ...
1
vote
1answer
118 views

A practical way to do healthcheck for a new server?

I am currently trying to do healthcheck for a new server in data center as a first QA before using by any application side. "What is the practical way and tools to check that the server is fine to ...