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• What are the best options for a root filesystem hosted on SSD under Linux

  - by stsquad

  I'm working on an embedded system which is going to be booting and hosting it's rootfs on an SSD disk. We are currently looking at using Intel X-18M SSDs. The file system structure will have a fairly static /usr section (modulo software upgrades) and an active /var and /var/log for maintaining state and logging. Given the wear-levelling done by the underlying flash does having separate partitions help or hinder? As modern SSDs appear as straight block devices and hide their mapping magic behind their firmware is there any point trying to optimise the choice of file-system that sits on-top of the SSD? Finally does enable SMART monitoring make any sense in this context or are their SSD specific ways of determining the underlying health of the storage hardware?

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• VPN using Zywall

  - by Rune FS

  I've played around with a certificate based VPN (normally I don't do hardware) we've manged to setup the connection and the tunnel between the routers is working correctly. We now need the last step. There's no connection to the computers on the other end. What could we have forgotten? (we're testing with two standard configured Win7 machines) EDIT: Just to clarify the tunnel is working I can ping the router on the other end. I can't access the computers on the other side of that router and vice versa. (It's also possible to access the remotemangement console of the remote router on the LAN IP)

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• Upgrade AirPort on Macs to support Snow Leopard's Wake on Wireless/WLAN?

  - by wojo

  Snow Leopard now supports Wake on WLAN, but not all hardware supports this. For example, my Octo Mac Pro from early 2008 has an AirPort card, but it does not support this. Nor does my 2007 2.33GHz MacBook Pro. For reference to what is needed, look at http://www.macrumors.com/2009/08/28/a-closer-look-at-snow-leopards-wake-on-demand-feature/ which includes a screenshot of what the System Profiler should show. It's pretty hard to find Apple parts, but is it possible to put newer cards into these machines to have them support Wake on Wireless?

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• Unable to run VMs on hyper-v

  - by PRAWAT-DS

  Folks/Mates, I need some advise and assistance regarding the testing of Hyper-V. Here is my h/ware configuration: 1) Intel i5 processor (i5-750) 2) Intel M/B DP55WB 3) 6 GB DDR3 RAM OS = Server 2008 R2 Standart (evaluation copy). I installed 2008 r2 on my machine and added hyper-v role to it. I created 2 VMs and installed OS. But after finishing the OS installation the VMs are not booting up. After finishing the OS installation, the VM reboots automatically (normal behaviour) and shows "preparing your system for first time" after that it reboots and didn't come online. Few things to notice, when I am running "securable" on my server 2008 R2 OS it shows that processor is not supporting h/ware virtulization, but (since my desktop is dual boot) when I am running "securable" on my windows 7 OS, it shows that process "does" supports hardware virtulization. VT option is already enabled in BIOS. Any help and suggestions are highly appreciated :) Thanks in advance. Pradeep Rawat

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• Door with keypad that can be controlled by website

  - by pbz

  Hi, I'm looking for some kind of the door/system that would allow us to install a door lock with a keypad. When somebody goes to that door they would enter a number that would open the door. The twist is that we need to be able to change the key combination that opens the door from a website. It needs to allow me to programmatically change the key combination required to open the door without somebody physically going there to do it. Any ideas what kind of hardware/software we would need to do this? Thanks a lot!

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• Universal Windows XP With Ghost and Sysprep

  - by RobertPitt

  Hey I have an idea but im not sure whether it is possible and looking for advice on how to accomplish this. If i was to try and deploy Windows XP Sysprepped image from a Lenovo Thinkcentre 6073-CTO and tried to drop it onto a Dell Optiplex for instance I would get a BSOD due to the hardware change. What im looking to do is create a few images like so: Windows XP x86 SP3 (Sysprepped) Windows XP x64 SP3 (Sysprepped) ... So that we can use throughout the organization without having to create individual images per computer type. Is there anyway's to accomplish this such as some modification of files pre-ghost, removal a certain drivers pre-sysprep Any advice is appreciated.

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• video streaming infrastructure advice

  - by Alchemical

  We would like to set-up a live video-chat web site and are looking for basic recomendations for software and hardware set-up. Most streams will be broadcast live from a single person with a web cam, etc., and viewed by typically 1-10 people, although there could be up to 100+ viewers on the high side. Audio and video do not have to be super-high quality, but do need to be "good enough". The main point is to convey the basic info in the video (and audio). If occasionally the frame-rate drops low and then goes back to normal fairly soon, we could live with that. Budget is an issue, so we are in general looking for a lower cost solution that will give us most of what we need in temers of performance and quality. We are looking at Peer1 for co-lo. The rest of our web site will be .Net / Windows platform. We are open to looking at any platform for the best streaming solution, although our technical expertise is currently more on the Windows side.

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• cloud/grid computing

  - by tom smith

  Hi guys. I'm appologizing in advance to the guys who will tell me this isn't a tech/server/IT issue! But I've been beating my head around this for a couple of days now. I'm trying figure out who to talk to, or which company I can approach to try to see if there are Grid/Cloud Computing companies who have programs setup to deal with colleges. I'm dealing with a compsci course, and we're looking at a few projects that would require a great deal of computing/computational resources. But in calling different companies (HP/Rackspace/etc..) I'm either not getting through to the right depts, or to the right people, or the companies just aren't setup for this. There are plenty of companies who have discounts for desktop software/hardware, but who in the biz deals with discounts/offerings for Cloud/Grid Computing solutions?? Any thoughts/pointers would be greatly appreciated. Thanks -tom

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• Linux Logitech QuickCam Pro 9000 - microphone issues

  - by drahnr

  I got a Logitech Quickcam Pro 9000, the cam itself is working as it honors the UVC spec. This fancy WebCam has a integrated mic which worked some time before but now, it does no more. (Note: I use pulseaudio as it is a USB Mic and I am not really keen on the hassle of ALSA setup) Things I check already are if it gets detected at all: $ lsusb |grep Logi Bus 002 Device 002: ID 046d:0809 Logitech, Inc. Webcam Pro 9000 is muted in alsa-mixer - not the case, volume at 100 pavucontrol shows it too, but no input level bar! On top of that, if I open the gnome3 (fallback mode) audio panel(from the desktop panel), and disabel/reenable it in the hardware tab, it works "for some time"... Any hints? Any ideas? I am really out options for now, and the fact it worked like 6 months ago (perfectly) makes it no better.

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• Why doesn't my sound card start? It reports code 10.

  - by Sarim Ali

  When I installed the XP for first time my sound card was working fine. But only after the first reboot it has stopped working. Under Device Manager, the section "sound video and game controller" the entry YAMAHA Native DS1 WDM Driver, has a exclamation mark on it. On left clicking and selecting properties it shows this message "This device cannot start. (Code 10)". On trying to update driver it says a better driver can not be found. Any idea how I can solve the issue? Update: As suggested by harrymc I uninstalled the device "YAMAHA Native DS1 WDM Driver" , and scanned for hardware changes. The windows detected and installed the soundcard and it started working properly.BUT, after restarting the same problem occurs. So, now everytime I reboot the computer I am stuck to, repeating the process of uninstalling the device to make it work.

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• Easily recreate a server's "state" [closed]

  - by Brandon Wamboldt

  I want the ability to setup new servers for dev/testing/prod very easily. The reasons for being able to setup a new dev VM is obvious, but for prod my concern is adding a new production server/migrating to a new server. I assume a traditional backup solution won't work as hardware may be different so the binaries/config might be different. I want to get experience with puppet anyways, so I was thinking about creating a manifest that would setup my users, install Postgres, Nginx, PHP-FPM, etc, and configure them the way I specify. Then I could install puppet on a new server, copy down my manifest and apply it locally. This would make keeping my server configs in sync easier too. Is there a better approach I'm not aware of, and does my approach have any pitfalls?

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• External hard drive doesn't appear in Computer

  - by Thomas Clayson

  I cannot work out why this is happening. I have an external hard drive (which is an old laptop hard drive with an IDE to USB adapter). Plugging it into my computer powers it up. It spins correctly and the lights on the adapter flash normally. Uninstalling from hardware manager and plugging it back in causes Windows to "install new software", and it says it has installed properly. In Disk Management it comes up in the bottom part as Disk 2 with the right size (~60 GB), but not in the top half. There are three empty drives in the top half. They don't have titles or drive letters. Right clicking them bring up slightly varying context menus, but all with the options disabled. Here is a picture of my Disk Management screen: How do I make this drive show up in My Computer? I need to format it and use it as an external hard drive.

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• SNMP - Value of CPU processor load not reflecting reality

  - by Ovesh

  Trying to plot CPU load on my server, with the following hardware: ProLiant DL360p Gen8 (same behavior on ProLiant DL360 G7). The machine is running VMWare ESXi5.1 To create a CPU spike I run dd if=/dev/zero of=/dev/null, and I know the CPU is overloaded, because I can see a correlating spike in the graphs displayed on vCenter. However, running this snmpwalk: snmpwalk -v 1 -c ******** 192.168.MY_IP 1.3.6.1.2.1.25.3.3.1.2 Shows the following results: iso.3.6.1.2.1.25.3.3.1.2.1 = INTEGER: 3 iso.3.6.1.2.1.25.3.3.1.2.2 = INTEGER: 2 iso.3.6.1.2.1.25.3.3.1.2.3 = INTEGER: 2 iso.3.6.1.2.1.25.3.3.1.2.4 = INTEGER: 3 Am I not looking into the right MIB? Should I be multiplying these by a constant? By the way, using HP Agentless Monitoring I was able to get some cpu stats, but not what I'm looking for, at least nothing I could find wading through these MIBs.

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• dell u2410 3dMark Benchmark distortion problems

  - by Scanningcrew

  Ive been doing burn in testing for a new system I have put together and I am running into some video distortion problems with running the 3DMark benchmark tools (Both 06 and Vantage). The graphics will be fine, then sometimes during a test switch the screen will light up with thin horizontal ranibow lines (Something that looks very "glitchy") If i turn the monitor off and back on it clears up. All the tests "pass" and my system gets good marks but it concerns me if I might have problems with games (The screen returns to normal if I dont resest monitor and just let tests pass). I want to return a problem component now before its too late if it is something with the new hardware. Also, I am monitoring temp with thermal laser gun and the card itself is not going above 65c. Any ideas? System: Asrock x58 Xtreme - Last BIOS (1.80) EVGA Geforce GTX 285 w/ latest nvidia drivers (Connect via DVI1) Dell U2410(Set to 59hz refresh 1900x1202 -although I believe benchmarks run 1200x1024) Windows 7 Ultimate 64 12Gb DDR3 1600 RAM

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• Windows 7 Via Hyperion 4-1 drivers

  - by Gratzy

  I have a clean install of Win 7 on some relatively old hardware. Everything works pretty well however my cpu is pegged at 100% most of the time. Task Manager shows srvchost as being a main culprit of course but also system interrupts. I have a Biostar socket 478 MB with Via chipset. I have tried to find Windows 7 drivers for this but when I download and try to install what VIA/BIOSTAR say should be good for all OS's it will not load. I get a message saying can't find components for this OS. Anybody have any idea where I might find suitable drivers for the Chipset? BTW I'm not using the integrated graphics on the board but have a radeon 4500 pci-e card.

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• Non-Apple RAID card for Mac PRO (TOWER)

  - by Arthor

  I have the following: MAC PRO (Model Number: A1186) (PCIe - SLOTS) At present I am using the software RAID however I wish to move to the hardware raid because of the following: Performance (4 x 300gb SATA II in RAID 5) Redundancy (Raid 5, 1 drive can fail and system will be online) I do not wish to use the Apple RAID card (very expensive), I would like to use an aftermarket one which is cheaper. Questions: Does anyone have a WORKING aftermarket RAID card working in their MAC PRO (TOWER)? -(Have done some research, ROCKETRAID, need confirmation) If so to the above, does it work from boot? Thanks

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• How to diagnose repeated freezing of windows 7 (comes back alive in few seconds)

  - by Akash Kava

  I installed Windows 7 in a 3 year old machine, it installed successfully, took all drivers and running great, but what happens is every 5-6 minutes it freezes for few seconds... 30 seconds to 1 minute and then comes back alive. I checked Event Viewer, nothing matching the frozen timeline. I would appriciate any help on how to detect causing service/hardware. After it comes alive, everything runs normal, I did run task manager and checked cpu usage, at time it freezes just before and after that no task took more cpu or memory, it was like idle machine. No external usb drives or no devices, on board intel desktop board with SATA HDD, SATA hdd running in absolute good mode.

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• Recommended Configuration to setup Tomcat 7 on windows OS

  - by yashbinani

  I have created a small web application using java/jee which will be deployed in LAN environment. I want to know the recommended hardware configuration. Details are as follows 1) Expected number of hits: 20 hits / hour 2) Number of clients 5-7 3) Application Server : Tomcat 7 4) Database server : MySql App and DB shall be deployed on same machine 5) OS Configuration : Windows XP or any unix flavour ? Can a simple p4/celeron machine with 1 gb ram 8-10 GB hard disk will be sufficient to cater client requests? Server will not be storing too many files/images/videos Client does not want to spend too much on infrastructure.

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• IP KVM switch, or serial console box for remote admin?

  - by grahzny

  We have a small server farm (11 now, may add more in the future) of HP Proliant DL160 G6s. They all run either Linux (server only, no X11) or VMware ESX. We had intended to get models with iLO, in case BIOS-level remote admin became an issue, but that didn't happen. I had an IP KVM switch recommended to me (along with some sort of Remote Reboot hardware.) I've since realized that none of our machines need GUI administration, so perhaps a serial console switch would be a cheaper and more appropriate option. Something like this: http://www.kvm-switches-online.com/serimux-cs-32.html Do you folks have an opinions on which way is a better choice? Should we go for the ease of setup (plug and go, instead of turning on the feature in the BIOS and making sure the serial settings are correct) and the flexibility of an IP KVM switch even with the extra cost? Or is a serial console switch just fine?

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• Elantech touchpad: Right + Left click doesn't work

  - by Robert Kilar

  This is very common problem and till yet unresolved. The Elantech driver disables right button + left button touchpad click. In the result you cannot aim and shoot in games also you cannot code that kind of interaction in your applications. Driver detects LMB+RMB click but it somehow filters it. I could not find correct entry in the registry to disable that obviously horrible setting. Please notice: 1. I have the latest drivers the problem existed with really old ones, a year old, on Windows 7, 8 and 8.1 ones and current. 2. It has nothing to do with the Windows or hardware but only with the Elantech driver settings. 3. Driver detects LMB+RMB click - it is shown on a dynamic icon on a task bar also uninstalling drivers fix the problem, but then you can't use your touchpad fully.

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• Why is Latex so big?

  - by putmatrix

  On windows, MikTex comes in a DVD. It's several times bigger than a typical Linux distribution. This makes it impossible to carry Latex on a memory stick like I do with many other useful software. Why is it so big? I thought it was just a language or system, but I've never seen any programming language with gigabytes of libraries. It's just that there's a bad feeling when your Latex distribution takes up four gigabytes of space when you expect it to be more of, say, 200mb.

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• After installing Windows Phone 8 SDK, Connectify doesn't work

  - by Pratyush Nalam

  Today I installed Windows Phone 8 SDK from the official site. After installing and a couple of restarts (it restarted the PC to enable Hyper-V), I opened Connectify. I use Connectify Hotspot to connect my iPod to the internet as I have an ethernet connection and no wireless router. The problem is that now, Connectify doesn't show WiFi in Share Over. The attached screenshot shows this. Previously, before I installed the SDK, it would show Ethernet and Wi-Fi. I would select WiFi and share my internet. Now, this is completely screwed. EDIT: I found out that the Microsoft Virtual Wi-Fi Miniport Driver has got disabled and I am not able to enable it again. Please advise. Please advise on what to do Hardware: Windows 8 Pro with Media Center, Apple MacBook Pro 9,1 15 inch Mid-2012 (non retina)

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• Programs minimized for long time takes long time to "wake up"

  - by bart

  I'm working in Photoshop CS6 and multiple browsers a lot. I'm not using them all at once, so sometimes some applications are minimized to taskbar for hours or days. The problem is, when I try to maximize them from the taskbar - it sometimes takes longer than starting them! Especially Photoshop feels really weird for many seconds after finally showing up, it's slow, unresponsive and even sometimes totally freezes for minute or two. It's not a hardware problem as it's been like that since always on all on my PCs. Would I also notice it after upgrading my HDD to SDD and adding RAM (my main PC holds 4 GB currently)? Could guys with powerful pcs / macs tell me - does it also happen to you? I guess OSes somehow "focus" on active software and move all the resources away from the ones that run, but are not used. Is it possible to somehow set RAM / CPU / HDD priorities or something, for let's say, Photoshop, so it won't slow down after long period of inactivity?

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• Should my servers boot from VHD?

  - by tony roth

  I've been testing native vhd boot on several servers. It seems to be pretty transparent in terms of deployment and with my seat of the pants testing I have not noticed any difference in performance. The main reason that I want to boot vhd is due to their transportablility between different hardware and to hyper-v servers. the following roles will be installed. dfsr dhcp iis application server dc <- haven't tested this yet but see no reason why it won't work. With the above low impact (in terms of performance) roles do you thing booting from VHD is appropriate. thx

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• Are speakers wasting power when they are not in use?

  - by Dennis Cheung

  I guess all of you have a pair/set of speakers for your MP3s. I am just interesting to how do they do when they are not playing? How actually the power spent by the speaker? Does any the below cases matter? Idle / Silence input When you computer is off / not connected Raise the volume by hardware (turn/push the button on the speaker) Raise the volume by software (do it with your mouse) BTW, to save the world. I am here to suggest you to unplug it when you leave your PC.

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