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  • Does putting the XFS log on an SSD significantly improve performance?

    - by Paul Wagland
    I have a five disk array running XFS in RAID5, and I would like to improve it's performance. I have seen some hints that putting the log onto a separate device can help, does putting the log onto an SSD help dramtically? In theory, it should, but I have not been able to find any case studies where someone has actually done this, and buying an SSD and then having it not work well would be inconvenient at best…

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  • Updated: NLB 2 Windows Server 2003 Servers - Looking to Hire SysAdmin to solve!

    - by Paul Hinett
    I need to configure windows NLB on 2 dedicated servers I have. My main machine has been running for some time, with several domain names pointing to the servers primary IP address. Both servers have 2 NIC's installed, and both have several secondary public IP addresses available if needed? What IP address would I use for the cluster IP, does this IP need to be added to the IP list of both public NIC's ip address list? What IP addresses do I use for the host's dedicated IP? Please help, this is driving me nuts...i've taken down the server twice on accident today! UPDATE: Looking to hire a windows SysAdmin to solve! I have updated my question, i would like to hire a trusted windows SysAdmin to take care of this for me, preferably today...can anyone help and provide some credentials please? Thank you in advance!

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  • How to copy only VM changes in VMware to another physical machine

    - by Paul
    How can I use VMware Workstation to copy only changes to a VM to another physical machine, rather than recopying the entire VM every time? Can I just copy the snapshot files, if the second physical machine starts from a pristine copy of the VM? Would it be best to create a linked clone against the original VM, and then copy the linked clone directory each time? Does that even work? (I'm assuming I'll have to change the path in the VM's metadata file, since the paths will be different. I'm assuming I can't clone a linked clone w/o cloning the base.) Background: I and another developer with VMware Workstation are using VM's for systems development. I have to work from a home desktop. Transporting a multi-gigabyte VM either direction takes several hours at best. Downloading it is easiest, but that takes an hour to get it on a DMZ machine for download and then many hours to actually download.

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  • Configuring network route between two routers on home network

    - by Paul
    I have a home network - the main router connected to the internet (and has wifi) is a Netopia box. Connected to it is a Linksys router. Everything currently works - I can connect via the wireless network and get to the internet. Machines connected to the Linksys can connect with each other and connect to the internet. Both routers are configured to serve addresses via DHCP (Netopia 192.168.1.1 - 192.168.1.99), Linksys (192.168.0.1 - 192.168.0.100). Here's how they are connected: Internet <-> Netopia w/wifi (192.168.1.254) <-> Linksys (192.168.0.1) I decided I really need to allow wireless connections to also communicate with machines behind the Linksys router. Currently the Linksys is configured to obtain an IP address via DHCP. I thought this would be straightforward. I configured the Linksys to have a static IP address: IP: 192.168.1.100 Mask: 255.255.255.0 GW: 192.168.1.254 Then I configured a static route on the Netopia: Network: 192.168.0.0 Mask: 255.255.255.0 GW: 192.168.1.100 So it should now look like this: Internet <-> Netopia w/wifi (192.168.1.254) <-> (192.168.1.100) Linksys (192.168.0.1) I reset both routers. I cannot ping the Netopia (192.168.1.254) from inside the Linksys network, and if I attempt to ping 192.168.0.1 from a wifi connection I get a "Destination host not available" error. Obviously I'm missing something, but I'm not sure where. Any ideas on what I'm missing?

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  • Computer won't start unless power is removed for ~5 minutes

    - by Paul Tarjan
    I have a fairly standard 2-year old desktop computer (quad-core intel, single hard drive, decent video card, 300W power supply) which recently started acting up. I'm not sure what the cause is, so hopefully you can help. Sometimes (once a week-ish) I press the power button and nothing happens. No blinking, no sounds, no nothing. If I remove the power cord (or flip the switch on the power supply) I hear a capacitor discharge. If I leave it in the "no power at all" state for about 5 minutes then I can put the plug back in and the computer works perfectly. What is the issue? What do you think I have to replace?

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  • Is it possible to have XP Mode in Windows 7 Home Premium?

    - by Paul
    I have Windows 7 Home Prem 32-bit with 2GB RAM. I have some older software that won't run so am wondering if i can run XP Mode? Is it only possible if you have Windows 7 Professional or Ultimate? If that is the case is there any other way to do something similar or will i need to install XP on another HD or partition?

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  • Computer won't start unless power is removed for ~5 minutes

    - by Paul Tarjan
    I have a fairly standard 2-year old desktop computer (quad-core intel, single hard drive, decent video card, 300W power supply) which recently started acting up. I'm not sure what the cause is, so hopefully you can help. Sometimes (once a week-ish) I press the power button and nothing happens. No blinking, no sounds, no nothing. If I remove the power cord (or flip the switch on the power supply) I hear a capacitor discharge. If I leave it in the "no power at all" state for about 5 minutes then I can put the plug back in and the computer works perfectly. What is the issue? What do you think I have to replace?

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  • Finding the most common errors in event logs using Powershell.

    - by Paul
    I have the event logs for one of our servers locally in .evtx format. I can load the log file into PS using the command: Get-WinEvent -Path D:\Desktop\serverlogs.evtx What I would like to do is on the Message field group events where the text matches by a certain percent (say 80% the same). As we have stacktraces for errors in the details which will be the same, but we also log the client's IP, url that was accessed which will likely be different. I want to group them so that I can work out the most common errors to prioritize fixing them and as there are 25,000+ errors in the log file I would rather not do it manually. I think I can work out how to do most of this, but am not sure how I could do the 'group fields which are mostly the same' part, does powershell have anything like this built in?

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  • Does IIS Sometimes Allocate More Worker Processes Than Configured?

    - by Paul Williams
    We have an IIS 7.5 web service on Windows Server 2008 that handles WCF requests from C# clients. This service is configured to have Maximum Worker Processes = 1, so it is not a web garden. IIS is setup to recycle itself at the same time every day (3 AM). I am trying to debug gnarly connection issues, so I wanted to be sure the application pool was not recycling itself. I configured the pool to log an event when it recycles itself. To my surprise, I see the following entries in the System event log: Level: Information Date/Time: 3/23/2012 3:00:00 AM - Source: WAS - Event ID: 5076 A worker process with process id of '6636' serving application pool 'MyAppPool' has requested a recycle because it reached its scheduled recycle time. Level: Information Date/Time: 3/23/2012 2:59:39 AM - Source: WAS - Event ID: 5076 A worker process with process id of '9364' serving application pool 'MyAppPool' has requested a recycle because it reached its scheduled recycle time. IIS is correctly recycling the application pool at 3 AM. However, I do not understand why I would be getting two recycle events in the log within a few seconds of each other. The maximum number of processes is 1. Does IIS sometimes allocate multiple processes for an application pool that is specified as having 1 process? -- edit -- I connected at about 4 PM today and only saw 1 w3wp.exe process. There are no other event log entries that would indicate a crash.

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  • Broad Band LAN connection through existing 6 wire phone line ( no phone connected )

    - by Paul Taylor
    I have an (up to but never achieved ) 10 mb broadband signal coming into my house along the telephone line. The modem then connects the broadband signal via a LAN connection and Wi-Fi signal to my computers and iPad. My workshop desk is 54 yards (approx. 50m) downhill from the modem (part of a separate building) – too far to give a good direct signal. The inside corner of the workshop (by a window) receives a weak signal. I have a disconnected telephone cable consisting of 6 wires going from the house to the workshop. The telephone is no longer used in the workshop - we use our mobile number for business calls. A broad band signal using the cable would not have to share with a phone. What would be the most economic price/efficient way to get the broadband signal to the workshop? I am writing in hope that since the telephone didn't need the six wires, an Ethernet connection might be similar and not need all the eight wires for a LAN connection. In theory could use the telephone wire to pull an Ethernet cable trough the underground pipe but I doubt if the cable would survive the strain. The broad band connection in the workshop does not have to have network facility. My skill level is high enough to do house wiring, plumbing and gas fitting; so given any sound advice and a wiring diagram or instructions I can probably work out the rest myself.

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  • No audio device detected

    - by Paul
    My computer has no audio. It says NO AUDIO DEVICE. I already installed Realtek AC97 and Realtek High Definition Audio Driver and I also pasted stream.dll to the Windows and system32 folders and I restarted my computer but it still says NO AUDIO DEVICE. Please help me. Thanks

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  • Using SVN on windows without a keypair

    - by Paul Nathan
    Hi, I am trying to set up command-line access for my windows machine to a svn respository on a Unix box. The guides online all have the keypair method of accessing the repository. However, I don't personally like storing my keypairs, so I'm trying to figure out how to do this. Thoughts? Suggestions?

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  • Standards for documenting/designing infrastructure

    - by Paul
    We have a moderately complex solution for which we need to construct a production environment. There are around a dozen components (and here I'm using a definition of "component" which means "can fail independently of other components" - e.g. an Apache server, a Weblogic web app, an ftp server, an ejabberd server, etc). There are a number of weblogic web apps - and one thing we need to decide is how many weblogic containers to run these web apps in. The system needs to be highly available, and communications in and out of the system are typically secured by SSL Our datacentre team will handle things like VLAN design, racking, server specification and build. So the kinds of decisions we still need to make are: How to map components to physical servers (and weblogic containers) Identify all communication paths, ensure all are either resilient or there's an "upstream" comms path that is resilient, and failover of that depends on all single-points of failure "downstream". Decide where to terminate SSL (on load balancers, or on Apache servers, for instance). My question isn't really about how to make the decisions, but whether there are any standards for documenting (especially in diagrams) the design questions and the design decisions. It seems odd, for instance, that Visio doesn't have a template for something like this - it has templates for more physical layout, and for more logical /software architecture diagrams. So right now I'm using a basic Visio diagram to represent each component, the commms between them with plans to augment this with hostnames, ports, whether each comms link is resilient etc, etc. This all feels like something that must been done many times before. Are there standards for documenting this?

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  • Windows XP volume control spontaneously slides to zero

    - by Paul Dixon
    Was listening to a podcast in iTunes at my desk, left my desk briefly and as I sat down, the volume faded. If I scrolled the volume back up, using my keyboard or the volume tray icon, it would smoothly scroll back down again. I rebooted, same thing occurred. Figuring maybe I had a stuck keyboard or hitherto undiscovered mouse function, I unplugged each in turn. Volume still wanted to go to zero! Anyone know what might cause this? It's driving me nuts!

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  • Sound card problem, no audio device detected

    - by Paul
    I bought a new sound card because my built in sound card did not function. When I open YouTube, Media Player or anything that can create a sound my computer will hang up and sometimes when I start my computer it will hang when the Windows XP sound will activate. Update: My computer has no audio. It says NO AUDIO DEVICE. I already installed Realtek AC97 and Realtek High Definition Audio Driver and I also pasted stream.dll to the Windows and system32 folders and I restarted my computer but it still says NO AUDIO DEVICE. Please help me. Thanks

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  • How do I run a batch file async using PSExec?

    - by Paul Mrozowski
    I have a batch file I run that, among other things, reset's the NICs in the machine. I have some watchdog software running on another machine that monitors the first one. I'd like to run this batch file using PSExec when it detects certain types of failures. The problem I'm having is that since the batch file reset's the NIC's it kills the connection PSExec has (I'm OK with that). The real issue is that when PSExec dies the batch file stops running (leaving the NIC's disabled). I've tried using the -i option with PSExec with no luck. Any ideas about basically just fire off the batch file and NOT have it stop when PSExec is disconnected?

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  • Install wireless router with cable modem - need authentication server?

    - by Paul
    I've bought a wireless router which I'm installing with a Telstra BigPond cable modem for a friend. As part of the setup I've got to a screen requesting username / password / authentication server for the cable modem They have contacted Telstra who supply the username / password and say that is all they need. They dont know anything about an authentication server. There are a couple of answers up on Whirlpool forum found through google but those answers are 4 years old. http://forums.whirlpool.net.au/forum-replies-archive.cfm/475258.html http://forums.whirlpool.net.au/forum-replies-archive.cfm/479615.html I havent tried them yet as I hoped to get actual answers before trundling over to my friends house again. Can anyone suggest, How to get information from Telstra support? (I realise this question maybe impossible to answer) What is the authentication server for Telstra BigPond for a user in Sydney Australia Are those whirlpool forum answers still valid? I guess if I dont get anything more here I'll try what it says on whirlpool and see what happens.

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  • CentOS 6.3 Virtual under OpenVZ cannot ping, host lookups, outbound connections while postfix running

    - by Paul Cravey
    My best theory is that some kernel limit is being hit preventing outbound connections. We have tried basically everything from tcpdumps to provisioning an entirely new virtual server (we do not have this problem on any other virtuals), however the problem somehow carried over, even with new postfix build (working). Emails work, and outbound connections work, so long as postfix does not have too much going on. /proc/user_beancounters shows no limits being hit (show below). Nevertheless, pings fail even to IP addresses. TCP stack appears healthy. Load is low. No iowait. Flushed iptables already. Has anyone experienced anything like this? uid resource held maxheld barrier limit failcnt 3: kmemsize 166216365 170262528 9223372036854775807 9223372036854775807 0 lockedpages 0 0 9223372036854775807 9223372036854775807 0 privvmpages 285727 351885 9223372036854775807 9223372036854775807 0 shmpages 16933 17605 9223372036854775807 9223372036854775807 0 dummy 0 0 0 0 0 numproc 150 303 9223372036854775807 9223372036854775807 0 physpages 314156 326191 0 1280000 0 vmguarpages 0 0 9223372036854775807 9223372036854775807 0 oomguarpages 165355 165355 9223372036854775807 9223372036854775807 0 numtcpsock 89 172 9223372036854775807 9223372036854775807 0 numflock 22 76 9223372036854775807 9223372036854775807 0 numpty 1 2 9223372036854775807 9223372036854775807 0 numsiginfo 0 75 9223372036854775807 9223372036854775807 0 tcpsndbuf 2733472 4371752 9223372036854775807 9223372036854775807 0 tcprcvbuf 1798336 5427296 9223372036854775807 9223372036854775807 0 othersockbuf 491120 1000760 9223372036854775807 9223372036854775807 0 dgramrcvbuf 0 238728 9223372036854775807 9223372036854775807 0 numothersock 361 505 9223372036854775807 9223372036854775807 0 dcachesize 135941831 136114679 9223372036854775807 9223372036854775807 0 numfile 2905 4990 9223372036854775807 9223372036854775807 0 dummy 0 0 0 0 0 dummy 0 0 0 0 0 dummy 0 0 0 0 0 numiptent 8 9 9223372036854775807 9223372036854775807 0 [root@bni /]# ping 4.2.2.1 PING 4.2.2.1 (4.2.2.1) 56(84) bytes of data. --- 4.2.2.1 ping statistics --- 9 packets transmitted, 0 received, 100% packet loss, time 8493ms [root@bni /]# service postfix stop [root@bni /]# ping 4.2.2.1 PING 4.2.2.1 (4.2.2.1) 56(84) bytes of data. 64 bytes from 4.2.2.1: icmp_seq=1 ttl=53 time=8.63 ms 64 bytes from 4.2.2.1: icmp_seq=2 ttl=53 time=8.62 ms 64 bytes from 4.2.2.1: icmp_seq=3 ttl=53 time=8.63 ms 64 bytes from 4.2.2.1: icmp_seq=4 ttl=53 time=8.66 ms Outbound connections of all sorts fail when postfix is running.

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