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• eTrayz: Replace base system with a bootstrapped Debian

  - by knoopx

  I bought an eTrayz NAS time ago. The device is more or less good but it ships with a closed-source custom linux and a bunch of broken web-apps. I wanted to replace the whole system with a raw Debian installation. I successfully bootstrapped a Lenny Debian into a chroot and I'm able to use use it. However I would like it to be the default system and to boot automatically at login. The device itself ships with a bundled 2.6.24.4 kernel. I think the kernel is on a dedicated flash memory so I would prefere not to re-flash it. What do you think is the best way to accomplish it?

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• Deployment from OVA format

  - by Manvendra Bele

  I am deploying a VM using a OVA format. The size of OVA format is 57 GB. Currently free space on my datastore is 388 GB. At the time of selecting Disk Format type if shows me in red that the disk size required is 1 TB therefore you cannot select THICK provisioning. Therefore, i selected THIN provisiong. It THIN provisioing i am showed that Estimated Disk Usage is 112 GB which is less than the free space available. But even after selecting THIN proviosing at the time of deployment it throws an error that it cannot create disk as the size of disk is larger than the maximum specified limit. My block size is of 1 MB. Pasting my exact error here: Failed to deploy OVF package:File [datastore1] IMS Tester 1/IMS Tester1_2.vmdk is larger than maximum size supported by datastore 'datastore1

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• What is the best IP/Subnet set up strategy for a multi-server webhosting setup?

  - by Roy Andre

  Sorry for the mixed-up title, but let me try to explain better: We run a hosting solution, which until now has supported shared hosting and VPSes. Easy enough. We are now getting larger clients which require a more complex setup. We have more or less settled the server-setup itself, which will consist of: 1-2 Frontend Proxy/Load balancing servers 2+ Application servers 1 Database server 1 optional Memcached server The issue we are dealing with is to agree on a flexible and easy-to-maintain IP setup. So far we've been into VLAN'ing the internal servers in its own subnet, we've though of assigning an official IP to each server, and so on. What will be the best approach here? Any best practices? Using one official IP on the Frontend server, and then just set up an internal subnet for the servers behind that? We could then just NAT in any eventual sources required to access for instance the DB server directly over 3306.

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• How to fix Windows XP from muting sounds on every startup?

  - by Rookie

  This started to happen few days ago: Every time I start up my computer, the global sound volume ("Playback") is set to muted (from the checkbox), in the sound control panel. So I have to open the control panel every time i start up my computer, and click that checkbox. I have got this bug before, long time ago. I have no idea why is this happening. Any ideas how to fix this or what is causing it? I have SP 3 and most updates installed a half year ago or less.

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• What is the value/cost of enabling "spread spectrum clocking" on my hard drives?

  - by Stu Thompson

  I'm building up a biggish NAS box (10x WD RE4 2TB SATA RAID10) and ran into some problems. During the course of my research, debugging, investigations, etc, I discovered a jumper on the physical drives labeled "spread spectrum clocking". After some googling about this on teh internets, it seems to be a feature that some suggest (without reference or explanation) enabling in 'a storage configuration' that makes the drive less sussesptable to EMI. But why? I've got three core questions: Why is this feature not enabled by default? What are the actual benefits? Are there any costs?

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• recommendation for configuration for a multi-core guestOS

  - by reidLinden

  Hi there, I've just received an upgraded Host machine, and am looking to push some of those advances to my workstations Guest OS(s). In particular, I used to have a single processor, with 2 cores, so my guestOS only had 1/1. Now, I've got a single processor with 8 cores, so I'm curious about what would be recommended for my GuestOS now? 1 processor/4 cores? 2 processors/2Cores? 4 processors/1 core? My instinct says to stick with the number of physical processors (or less), but, is that based on reality? I spent a good while looking for an answer to this, but perhaps my google-karma isn't in my favor today. Suggestions?

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• What's a fast way to copy a lot of files from an internal hard-drive to external (USB) storage?

  - by jonathanconway

  I have a large amount of data - about 500 GB - on the internal hard drive of a desktop PC. This includes music, videos, PDFs... you name it. I want to copy everything to an external USB hard drive (1.5 tb capacity). The desktop PC runs Ubuntu. To being with, I simply plugged in and mounted the hard drive and dragged the top-level folder onto the drive. It's started copying, but it seems to be proceeding very slowly. About 10 minutes later and it's only done about 500 MB. I'm sure this is slower than what I could achieve with less total data. So I'm wondering if there's a quicker way of doing this. Would it be better to copy it in portions of 500MB or so, rather than all at once?

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• iTunes memory usage

  - by Jordan S. Jones

  Why does iTunes use upwards of 70 megs of ram when it is minimized to my system tray playing music? -- Update -- I understand that iTunes is a resource hog :) What I'm trying to find out, is what part of iTunes is using all that ram. Is it the music library? If I have a smaller music library, will it use less ram? Is it loading all the Album Artwork into ram for some dumb reason? Additionally, is there any recommendations on what someone could do to reduce the amount of ram it is using?

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• internet speed and routers are controlled by whom

  - by Ozgun Sunal

  i need to learn two things. each is related to other a bit. The first one is, while our LAN speed is usually 100 Mbps or at gigabit levels(very big compared to WAN speeds), WAN speed for instance DSL connections are far less than this. However, we are able to download huge files at those Mb speeds. Isn't this weird? [my real concern is why WAN speed is lower than LAN speeds] Who controls those routers around the large Internet? (while we, as web clients are connected to Internet, packets travel through those routers to the destination network/s).But, are those routers all inside the ISP network and if not, who controls those large numbers of routers?

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• Symantect (Veritas) Storage Foundation for Windows [closed]

  - by SvrGuy

  Does anyone out their have rough (I don't need exact) pricing for Symantec (used to be Veritas) Storage Foundation for Windows? Its for Windows Server 2008 R2. Ideally, I would love to know the cost of Storange Foundation For Windows, and also the price of the options (like VRR, HA etc. ) if you happen to know them. Getting the information out of a reseller is like pulling teeth. They want to meet with us and discuss our needs etc. My needs are just to know whether its $100, $500, $1,000 or $10,000 per server in small qtys (i.e. less than 20 licences). Arghh. Anyone know the rough prices?

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• Preventing logrotate's dateext from overwriting files

  - by Thirler

  I'm working with a system where I would like to use the dateext function of logrotate (or some other way) to add the date to a logfile when it is rotated. However in this system it is important that no logging is missing and dateext will overwrite any existing files (which will happen if logrotate is called twice on a day). Is there a reliable way to prevent dateext to overwrite existing files, but instead make another file?. It is acceptable that either no rotate happens or a file is created with a less predictable name (date with an extra number, or the time or something).

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• Can I run my MacBook in clamshell mode without being connected to power?

  - by kch

  Hi, At home, I run my MacBook in clamshell mode (closed lid, external display). This works fine when you're connected to the power adapter, but it doesn't work when running on battery. That's how it's supposed to be and Apple has some kb entry on the issue. But it's also lame. You can prevent the machine from sleeping when closed by running InsomniaX, but then it'll assume the builtin display is still active, so you end up with a two-display setup when you really only want the external. This is obviously less than ideal. So, is there any work around, hack, utility, black magic that I can use to make it run in clamshell mode while strictly on battery power? Also, bonus points for a solution that makes the AC status not affect the machine state at all. (Like, you know, it does normally, when not in clamshell.)

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• Exchange - get age range of items using Powershell

  - by marcwenger

  We are going to be implementing personal archives for Exchange in our organization. For us to get a good grasp on how much space is needed, we need to get an idea of the age of items that we currently have. Is it possible to have a powershell script that tells me the total size and number of items given certain date ranges of all mailboxes in all databases? What I'd like to have is the 1) number of items, 2) total size of times (GB) - all grouped by date ranges (Less than 15 days, 15-30 days, 30-60 days, 60-90 days, more than 90). Another possibility would be to have it also grouped by mailbox database

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• Blackberry Won't Sync: Says Processing

  - by Noah

  I have a blackberry storm 2 and I have it set up to sync, just like I've done with all the other ones in the company. They pull the address book/contacts from outlook, and aren't synced to an exchange server. I have everything setup and then when I hit synchronize it flashes "processing" the phone shows it trying to sync and then it is done in less than a second. It did warn me that the computer was not supplying enough power to charge the device and it said that I should make sure the drivers are correct. Also, I was warned that the device might not function properly down in the bottom right hand corner. Any ideas? I've uninstalled and reinstalled the blackberry software off the disc.

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• Word to GIMP pasted image too small

  - by Marcelo Cantos

  I paste an image from Microsoft Word 2010 into GIMP 2.6.10 using Edit ? Paste as ? New Image, but the pasted image is less than half-size (1280×800 down to 553×347). Pasting into an existing blank 1280×800 image makes no difference. On the other hand, pasting exactly the same clipboard entry into Windows Paint works beautifully, producing a razor-sharp 1280×800 image, and furthermore, pressing Ctrl+C in Paint, then going to Gimp and pressing Shift+Ctrl+V in Gimp produces the correct full-size image in Gimp too. Why does pasting an image directly from Word to Gimp reduce the image size? How can I make it paste the correct image size without having to go via Paint? UPDATE: I just noticed that cutting the image from Word and pasting back into the same document also loses definition. Paint must be magical.

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• Windows 2003 server RRAS on VPC

  - by Saif

  I'm trying to setup a L2TP VPN server(to give user access on to all my VPN instance) on a Windows 2003 instance running on my VPC. While trying to enable RRAS I'm getting error, "less than two network interfaces were detected on this machine". Eventually it's because there's only one network interface available, the which has private IP. I have elastic IP assigned to this instance as well. But RRAS can't see this. What should I do to RRAS to be able to see the interface with elastic IP?

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• What is the pixel clock setting on my monitor actually doing?

  - by codecowboy

  I am experiencing display interference on a dell 24" flat panel monitor.I find that if I adjust the pixel clock settings up or down in the monitor's on-screen menus, the interference goes away for a while. The monitor is attached to a Macbook Pro using a mini display to VGA adapter. I have found that in a different house, I get the interference problem less so it might be related to electricity supply or possibly even ethernet powerline (total guess). What does the pixel clock setting actually do and does this behaviour point to a likely cause of the interference?

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• Moving windows using keyboard...faster?

  - by Alois Mahdal

  I like using keyboard shortcuts because it's faster as it does not force me to move my hands off the keyboard. In Windows I can use them to move windows around desktop: Press Alt+Space to open common windows menu Press M to choose "Move" command Navigate window position by cursor keys Confirm new position with Enter Additionally, to achieve better accuracy, I can hold Ctrl while navigating. Now the problem is that the normal "step" when moving is about 20px, and my desktop is quite large, so "walking" all the way across takes quite a long time. This kind of defeats the purpose of using keyboard for these tasks. Is it possible to change size of this step so that takes less steps to walk the same distance? (I imagine a hidden setting in Windows registry...?) I tried holding Alt while navigating, but it does not seem to have influence on speed.

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• How do I turn off the click sound when closing a tab in chrome?

  - by nos

  Every time I close a tab in Chrome, it makes a click sound. How do I turn off that sound? I reported that issue back in Oct 2010. The problem doesn't appear on all clients and the reason is still unclear. Common attempts at solving the issue include simply turning off the sound in Windows. But I would prefer to solve the problem at the source. Why is Chrome even triggering that sound to be played? And why is it delayed? The problem would be far less annoying if the sound could easily be related to the action taken. Installing the Chrome Toolbox and muting all tabs has no effect on this issue. When switching to a different Chrome user profile, the new user profile does exhibit the same issue.

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• Weird RAM Upgrade Experience

  - by Axel Isouard

  I have a laptop, HP EliteBook 8540p having originally 4GB RAM and I've recently bought Corsair Value Select SO-DIMM 16 Go (2x 8 Go) DDR3 1333 MHz. It fits the required RAM specifications perfectly, and once I've inserted them, the BIOS recognizes the memory correctly, but my linux Gentoo running on kernel 3.1.6 SMP x86_64 crashes immediately when I'm running an app which consumes a lot of memory. The laptop crashes as if there's no more battery left, when the memory reaches at least 6000MB ram. Windows 7 doesn't want to run anymore, it shows a blue screen with the IRQ LESS OR EQUAL error if I set 8GB, and it doesn't boot at all if I set 16GB. Is there something I could do to fix this please ?

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• How to view multiple log files as one file in unix/linux

  - by user42679

  Hi, I was wondering if there is a convenient way in linux/unix to read multiple log files as one. More specifically, I would like to view a sequence of log files (app.log, app.log.1 app.log.2, etc) as one big file using normal unix tools (vi, less, etc). When the EOF is read the tool will automatically move to the beginning of the next file. During my work I have to analyze uat/prod logs to investigate and solve problems. The fact that I need to traverse many log files disturbs my work and causes delays. Any ideas?

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• Access RAID configuration in x3550M2

  - by Mike B

  I'm trying to configure RAID in a IBM x3550 M2 server. I can't find any messages on boot about any hotkey to access the configuration utility. I wasn't able either in BIOS. The card is a on board LSI 1068e. I can't find the original CD's shipped with the server, but I downloaded Server Guide 9.21 from IBM web. Booted with that, and only getting stuck at "Windows loading"p. Tried with a 8.? version from a x3550 (M1), but it was less useful. Although I do not consider myself an expert, I'm starting to feel like a newbie luser. Any help?

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• Is Zabbix the right tool for me?

  - by hortitude

  I just want to monitor a small handful of servers (less than 10). From reading various places it sounds like the top leading contenders (for open source at least) are: nagios munin zabbix From what I have read a lot of people tend to use munin and nagios together -- munin for history and graphs, and nagios for alerting. On the other hand it sounds like Zabbix is a more complete solution and easier to configure than either of the other two. So I was thinking of going that route. My thoughts right now are: What are the general disadvantages of Zabbix? Does Zabbix have a small footprint on boxes it is monitoring? Do I really need to setup an entire other server for it? I currently have a server that is under very light load -- can I dual purpose it?

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• What can impact the throughput rate at tcp or Os level?

  - by Jimm

  I am facing a problem, where running the same application on different servers, yields unexpected performance results. For example, running the application on a particular faster server (faster cpu, more memory), with no load, yields slower performance than running on a less powerful server on the same network. I am suspecting that either OS or TCP is causing the slowness on the faster server. I cannot use IPerf , unless i modify it, because the "performance" in my application is defined as Component A sends a message to Component B. Component B sends an ACK to component A and ONLY then Component A would send the next message. So it is different from what IPerf does, which to my knowledge, simply tries to push as many messages as possible. Is there a tool that can look at OS and TCP configuration and suggest the cause of slowness?

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• nginx static file buffer

  - by Philip

  I have a nfs which several frontend-servers are connected to for making the files stored on the nfs available for http downloads. It looks like I have problems with the way apache is serving the files, there seems to be a very small buffer or no buffer at all which results in a lot disk seeks. I did some testing with loading the whole requested file into memory at once and serve it to the client from memory. With this technique I need less disk seeks for a download stream. Since I don't want to implement this by myself for production use I thought that I could maybe use nginx for that because the documentation says that it uses buffers for static file serving. Is it possible to increase the buffer size to a few mb, if so which config parameter do I have to change for this? Has anyone experience with large buffers for static file serving? Is there a better way to reduce disk seeks?

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