• Visible red light at 850nm

    Why are SFP's used in SAN devices (brocade, emulex,cisco) emit visible red light if their specs say they operate at 850nm wavelength which is outside of visible electomagnetic spectrum? Even though they are class 1 lasers is it safe to view the beam with the naked eye?

    Mchwf5 pointsBadges:
  • 3Par and EMC problesm

    I have a Sun x4100 has two qlogix qle2460 HBAs both connected to a 3Par SAN and a EMC cx700 SAN. When both HBA's are active in non-failover mode we can see the LUNs in /proc/scsi/qla2xxx/3 and 4 - BUT fdisk does not see the devices. If we have the HBAs set in failover mode we only see the LUNs on...

    Mberger5 pointsBadges:
  • CX-500 LUNs

    A SearchStorage.com reader recently asked: Am presenlty Testing the I/o performance on the new CX-500 San From Emc And Hba From Emulex,The LUn Size is 1 TB and when doing the Testing with SQlIO Tool with a I/o block size-8 i get 39.3 MB/sec for Random write requestes but when doing the same with...

    aburton80 pointsBadges:
  • Cisco 2960 & Cisco Linksys SRW 2024

    What is the difference between Cisco 2960 Switch and Cisco Linksys SRW2024?

    Bops5 pointsBadges:
  • Troubleshooting network connectivity

    Which utility is used to troubleshoot network connectivity

    Robin295 pointsBadges:
  • Bandwidth Test

    We do have a lots of Bandwidth testing sites like http://www.speakeasy.net/speedtest/ where we calculate the download and upload speed. I want to know what is downloaded to our system and what is uploaded to the server and how are the Bandwidth calculated. what needs to be the prerequisite at the...

    Sachindabu35 pointsBadges:
  • removing a router

    We had Linksys router wrt54g and it was having some problems. We go a wrt54g2 to replace it. I loaded the software, but the old router, which is no longer attached, still shows up on the network. I can't find anyway to remove it. The network seems to see it as the router, whereas the router we are...

    LB5 pointsBadges:
  • Remote Desktp accesing problem

    i am having problem while accessing my win xp system through remote access . I was accessing my system through remote access it was running fine then . Yesterday i have installed internet explorer 8 beta and also taken my system into backup with norton ghost . and immidiately after that i am not...

    Sami19785 pointsBadges:
  • Access Point issues netgear WG302 Access point

    I have a netgear WG302 Access point that is giving me a headache. I can configue it and it will work fine, until my isp changes the ip address. Then I have to reconfigue it again. I have tried static routing options through the router hoping this would fix the problem. no luck. (It may have been...

    MK1000015 pointsBadges:
  • PC to PC file sharing

    What is happening exactly when we share file through LAN when 1)there is an internet conection to both computers. 2)there is no internet connection? What is the role of IP address in this ?

    Arnml5 pointsBadges:
  • Scheduling errors after moving a SQL Server to a different domain

    We run SQL Server 2005 on Windows Server 2003, and we have put our server onto a recently changed domain. Since we’ve done this, we’ve had numerous problems running reports. The latest issue has been that as soon as we start the Internet Information Server (IIS) website to access the reporting...

    SQL Server Ask the Experts2,585 pointsBadges:
  • How many IP address can be assigned to a Windows 2003 Server?

    How many IP address can be assigned to a 2003 Server?

    RyderSL4205 pointsBadges:
  • In my Exchange Server 2007 environment I forward all outbound email to an SMTP gateway. I want to route mail for a couple of specific domains. . .

    In my 2007 Exchange environment I forward all outbound email to an SMTP gateway. I want to route mail for a couple of specific domains from the exchange server via a Lan-to-Lan VPN to their private IP address but the exchange server always resolves to their public IP. How can I get the server to...

    ITKE54,665 pointsBadges:
  • WAP Interferes with Network Switches

    Recently I got a new PoE outdoor wireless access point. When attempting to configure the device in my office for the first time, everything seemed ok. When I deployed the unit inside the building to test it, I noticed several network switches including the one it was connected to acting up and...

    Schmidtw11,330 pointsBadges:
  • Network access control security problem

    Hi everybody, I am not a security expert nor an IT specialist but having a network of 7 terminals, some users are limited account others are administrators, some having XP OS others 98 and 2000.All the 6 terminals has to log on using a user name and a password when trying to click on any of the pc...

    Gaf5 pointsBadges:
  • IAS services get disabled automatically after a day

    Hi, I got 1PDC win2k3 and 1 BDC win2k3, i having problem with the IAS services which getting disable after a day and im not sure what time is that automatically.. I even tried to change it to Automatic and checked all the settings but no vail. Please help me out. Is that because PDC is disabling...

    Sathishfiles10 pointsBadges:
  • Netbios transmitting to port 80

    Hi all, I have a strange issue with file sharing on my windows vista home premium PC in that file sharing is no loner working. After sniffing my network traffic I have found that netbios request are being sent to port 80 and have no idea why. If I attempt to access a share using \\<IP...

    Studix5 pointsBadges:
  • can’t send email to external email accounts, we receive errors SMTP errors 550 #5.7.1.

    We just added an encryption router to our domain. We have change our MX record with the web hosting company. Now I can't send email to external email accounts, we receive errors SMTP errors 550 #5.7.1. Is there something else I need to do at my location or do I need to have my Big Brother company...

    ITKE54,665 pointsBadges:
  • How to find Cisco router memory

    How to find CISCO router memory? and if possible to use 2 ip address for one router

    Nazar5 pointsBadges:
  • Need a network card for a MAC G3

    Hey, any MAC people out there? I have a client who has an ancient MAC G3 running OS 8.5. I have limited experience with Apple hardware, and have handled the diagnostic over the phone so far. From what I am able to determine the Ethernet port on the computer has died (Cables work on another system,...

    Flame14,925 pointsBadges:

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