Hardware :: Replace Fibre Channel Switch In CentOS5.3 (cluster) For Regular Switch / Hub?

Jul 28, 2009

Can the fibre channel switch in the centOS5.3 cluster edition be switched for a regular router or hub?
If so how would one do this? If not why does the switch have to be fibre channel?

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Ubuntu Multimedia :: Hauppaage HVR-2200 Second Tuner And Slow Channel Switch?

May 13, 2010

I'm running MythBuntu 10.04 32-bit on an ASUS DualCore Atom + NVidia ION chipset. It's taken me a while to get it all working (still not there yet on the remote!), but there are a couple of glitches with the tuner card.

10.04 appears to have the kernel modules already, so I installed the firmware following linuxtv.org instructions and got it working pretty quickly in MythTV. I've since built the latest stable kernel module and updated the firmware to v4l-saa7164-1.0.3-3.fw which appears to be the latest. Same issues in both cases anyway.

Problem 1: The picture using /dev/dvb/adapter1 breaks up / stutters like there's a poor signal, although it says 90+% and /dev/dvb/adapter0 is rock solid. When I try with mplayer it plays but gives lots of errors on the second tuner, but I guess that's not surprising. Example output:

Code:
[mpeg2video @ 0x3d466c0]ac-tex damaged at 29 102 17% 0% 1.2% 0 0
[mpeg2video @ 0x3d466c0]concealing 45 DC, 45 AC, 45 MV errors
[mpeg2video @ 0x3d466c0]concealing 34 DC, 34 AC, 34 MV errors% 0 0
[mpeg2video @ 0x3d466c0]concealing 7 DC, 7 AC, 7 MV errors1.2% 0 0

Problem 2: Switching channels takes a good 7-10 seconds even on tuner 1. The screen goes black, then you get a tiny fragment of the original channel before the new channel kicks in.

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General :: Fibre Channel - QLogic Corp - QLA2300

Apr 10, 2011

My system is an Altix3000 running: (Linux sgialtix 2.4.21-sgi304r1 #1 SMP Sat Jan 29 22:43:29 PST 2005 ia64 ia64 ia64 GNU/Linux) (redhat-release=redhat-release-3AS-8.3). Which command do I use to list World Wide Name information of the QLA2300 HBA? I tried /proc/scsi and /proc/xscsi but I found nothing there.

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Red Hat :: Disable One Of The TWO Fibre Channel HBA Adapter On Redaht 5.3 Server?

Feb 10, 2011

A single LUN is attached to my server with rhel5.3. The server has two Fibre channel adapters. I need to turn off one of the FC interface manuly. Which command should i use to turnoff(disable) the adapter. The settinga are the following:

#multipath -ll
test-lun (36005076801900139b800000000000150) dm-14 IBM,2145
[size=10G][features=1 queue_if_no_path][hwhandler=0][rw]
\_ round-robin 0 [prio=100][enabled]
\_ 2:0:11:3 sdc 8:32 [active][ready]
\_ 4:0:13:3 sdi 8:128 [active][ready]
\_ round-robin 0 [prio=20][enabled]
\_ 2:0:12:3 sde 8:64 [active][ready]
\_ 4:0:12:3 sdg 8:96 [active][ready]
[Code]......

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OpenSUSE Network :: FCoE (Fibre Channel Over Ethernet) Installation

Jul 27, 2010

I'm new to this environment. I'm currently using OpenSuse 11.2 freshly installed. I'm attempting to install FCoE as a target on one box and an initiator on another. I've gone to the Open-FCoE.org site and got the tar file open-fcoe-2.6.34.tar.gz and attempted to install it, but there appear to be missing dependencies, such as libhbalinux. However, the more I seem to install, the more there are unresolved dependancies. I've followed the Open_FCoE Target and Iniator Quick Starts, but I'm running into many missing souce dependencies. What exactly I need in the way of packages, files, etc and how to install them? Is there any documentation of how to install FCoE from scratch?

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CentOS 5 Hardware :: Fibre Channel Port Type Configuration?

Jul 31, 2010

SAN admin needs me to change the host port_type from an NLPort to an FPort,is[/sys /class /fc_host/host1/port_type] however i can not find anywhere to change this.the driver in question is Fusion MPT.

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Debian Hardware :: Fibre-Channel RAID Not Showing, Wrong Setup?

Jun 8, 2011

I've been running Debian for a while, and now have the chance to do some enterprise-level experimentation. I stumbled across a very cheap EMC Clariion CX300 fibre RAID unit on eBay with 10 disks (90!), so I snapped it up with a fibre HBA. It's not a SAN, technically a DAS in its current configuration. I'd like to know how hard it is to set up one of these as an actual disk device in Debian.I tried installing the HBA (an Agilent Tachyon XL2 PCI-X card, 32 and 64-bit modes) in my current 'live' server (a Celeron 1.2GHz-based machine), but while Debian detected it as a FC controller card, mapping the LUNs within Navisphere on the CX to the host caused nothing (obvious) to show up in the OS. From what I've read about setting up SANs (not DASs, there seems to be precious little info on setting up these), there's firmware involved with the card, and there are no references to getting a Tachyon running under Linux.

I also snagged a good deal on a PowerEdge 1850 server, but as it's the PCI-Express version, the Tachyon won't fit, so I'm considering buying a PCI-E HBA. I found a QLogic QLE2460 for a good price, but I'm hesitant to buy it, in case I still can't get Debian to see the disks. I'd most like to have the device connected to the PowerEdge instead of the Celeron machine. Have I missed a step in the configuration, or is there anything I can do to test if the system is working as it should be? The units we use at work are much simpler: set the RAIDs up, map the host LUNs and the disk shows up in Windows. I'm also sure I've set everything up correctly on the CX, as the same LUN is available to Windows. Just need to get Debian to see something on the end of the HBA!System Specs:Live Server: Celeron 1.2GHz, 512MB RAM, Intel D815EEA2 board, SATA soft-RAID hard drives, PCI Gb Ethernet and USB2.0, Agilent Tachyon XL2 PCI-X FC HBA, Debian 6.0.1PowerEdge 1850: 2x 3.2GHz Xeons, 6GB RAM, SCSI RAID disks, PCI-E riser, planned QLogic QLE2460 PCI-E HBARAID Unit: EMC Clariion CX300, 10x 146GB FC disks, 2Gbps Fibre-channel interfaceThe PowerEdge is the planned replacement for the Celeron machine, which started life as my experimentation box and became my personal live server. Storage is holding it back, so I'd love to add a further five disks to the CX and have nearly 2TB of RAID-protected storage.

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Ubuntu :: Switch From Installed "regular" To Lubuntu?

Oct 12, 2010

Is there a way I can switch from my installed "regular" Ubuntu to Lubuntu? (BTW I don't see where I can change "Jaunty" to "Maverick" in my profile; it's been a while since my last visit )

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General :: Switch Between Computers Using KVM Switch?

Mar 14, 2011

I am using a Fling KVM switch (by Belkin), to connect 2 computers to my monitor One computer is running XP and the other is running Linux. My wireless switching mechanism has just gone the way of the saints but Belkin has supplied a software solution for this occurrence. There is a small app called Fling (surprising) that allows me to switch from the XP machine to the Linux machine but nothing to switch back to the XP. What I need to know is there a similar app for the Linux computer. (NB I have tried Synergy but have no idea how to set it up - I've been told that synergy might work).

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SUSE / Novell :: Fails To Boot From QLogic Fibre Channel Card - No Root Device Found

Oct 31, 2010

We have a SuSE/SLES 9 server that boots from a fibre channel card, using volumes from a NetApp filer.

We previously had the server booting from the LUNs on the filer, but after some tinkering around with the fibre channel BIOS, we have the situation where the LUNS seem to be mounted, the OS boots, starts to initialise everything but then stalls, saying:

We have tried loads of combinations of settings in the BIOS and fibre channel BIOS without any success or any idea what may have caused the error.

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Ubuntu :: Get A Dell M610 Running 9.1 64bit To Talk To A Dell EMC Fibre Channel Array

Jan 22, 2010

I find myself in unfamiliar territory. I am attempting to get a Dell M610 (in an M100e) running Ubuntu 9.1 64bit to talk to a Dell EMC Fibre Channel Array. The Dell has an Emulex card in it and it appears that the driver is loaded OK. What I am not sure on is what to do next! I have the SAN end configured but how do I get my LUN mounted on Ubuntu ?

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General :: Create A 2 Node Cluster On Centos5.2 With A Dell MD3000 As A Storage?

Sep 8, 2010

I am (and still) trying to create a 2 Node cluster on Centos5.2 with a Dell MD3000 as a storage. However I am getting this when I try to probe for storages in luci: An error has occured while probing storage:

<?xml version="1.0" ?>
<dict name="result">
<var name="diff" type="num" value="24"/>
<var name="max_inactive" type="num" value="600"/>

[code]....

And I also get errors on /var/log/messages end_request: I/O error, dev sdf, sector 0 Buffer I/O error on device sdh, logical block 0

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Ubuntu :: "Switch From ..." / "Switch User" Does Not Work?

Feb 15, 2011

Whenever I try to "Switch from [username]..." I get locked screen with the options to "Leave Message", "Switch User" or "Unlock".If I click to "Switch User" the password box just disappears (as if one tried to unlock with an incorrect password). The only thing I can do is unlock the screensaver and resume my login session.I can not seem to switch users.Does anyone know why "Switch User" is not working?

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General :: "switch To Next Desktop" Vs. "switch To Next Screen"?

Mar 2, 2010

While rearranging my keyboard shortcuts in the control center, I noticed that in the Desktop Switching subcategory, there are "Switch to [Next/Previous/Left/Right] Desktop" and "Switch to Next Screen." What is the difference between switching to another desktop and switching to another screen?

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General :: Regular Expression In VIM Search And Replace?

Oct 22, 2009

I have two type of lines in a text file example

Code:

x.junk(a,b,YAHOO);
y.junk(c,d);

I want to search and replace the second type of line with the first type i.e. with YAHOO included, so that I have

Code:

x.junk(a,b,YAHOO);
y.junk(c,d,YAHOO);

I am trying to use

Code:

:%s/(.*).junk((.*),(.*)^<YAHOO>);/1.junk(2,3,YAHOO);/

In the above code ^<YAHOO> search is not working (I want lines "except YAHOO"). I know that [^ab] will work for "except a,b" characters. How can I say "except word" in regular expressions?

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Programming :: Python Replace() With Regular Expression?

Mar 16, 2011

i cant use regular expression in replace function. I want to do this

a = ' Bad boy'
b = a.replace("b[aA]d", '')

Ofcourse this is a simple example for my query. Its not working so shall i assume regex dont work with replace function ?

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General :: Regular Expression Search And Replace In Writer Or Gedit?

Oct 26, 2009

I've got a list of files that I've copied from my terminal and pasted into gedit and into OO.o writer. Since the files are all created by gedit, in each case there is both file and file~. I want to get rid of all the 'file~' lines. I thought I could do search and replace using *~, but this doesn't work.

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Fedora :: Switch From Gdm To Kdm?

Aug 2, 2009

How do you switch from gdm to kdm?

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Ubuntu :: How To Switch Fan Off

Jun 12, 2010

How do I switch it off?

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Ubuntu :: KVM Switch With 10.04

Aug 24, 2010

Is anyone using a kvm switch without any problems? I've been dealing with this for 3 years now & still haven't solved it. I've got two different kvm switches & they both have the same problem. Ubuntu no matter what version will only work correctly on the first port. The two switches I have are a 2- port trend-net & a 4 port Alluratek, they both do just monitor,keyboard & ps2 mouse. The problem is only with the monitor. The resolution is stuck at 800/600 or else it only covers part of the screen. After messing with xorg forever in Hardy I finally got it working but upgrading to 10.04 I just give up. Windows never has a problem detecting my monitor with the kvm switches but Ubuntu does.

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Ubuntu :: Need To Switch To UNR (10.04)?

Oct 3, 2010

I have a HP Mini netbook. I wanted to switch to Ubuntu but the only CD I had on hand was an old Ubuntu 9.10 cd. so I used that, since I didn't have internet access at the time. Now I do, and I want to switch over to Netbook Remix, and then upgrade to 10.04. I do not have a Thumbstick on hand, and my external CD drive does not burn cds. am I totally screwed here? How can I get this done? what exactly are the differences between the full Ubuntu, and Netbook Remix. is Netbook Remix just the full Ubuntu with a different style Desktop Environment? or is it a completely different distro, with different programs and such?

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Ubuntu :: 32 To 64 Bit Switch?

Nov 30, 2010

I'm changing a mobo and cpu in an older Ubuntu box and switching from 32 to 64 bit both 10.04. My question is is there a way to move my 32 bit thunderbird, firefox profiles to 64 bit. Some ideas preserving all my samba, ssh, sane etc, *sigh* Would be great too. I was thinking backup ,then restore

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Ubuntu :: USB KVM Switch In Use?

Jan 15, 2011

Currently running a Windows XP computer and an Ubuntu computer through a new TRENDnet 2-computer USB KVM switch, a wireless laser mouse and a brand new GigaWare multimedia USB keyboard. A 20-inch picture tube.

I can switch between computers using the buttons on the switch, and I can use the universal hot-key command on the Windows side to switch to Linux, but the universal command won't work on my Linux computer. The universal command is two presses of the Scroll Lock key in succession.

In Windows, the Scroll Lock light comes on, on the first press and goes off on the second, as I switch computers. In Ubuntu, the scroll lock light never lights.

The Windows computer is a 2002 model HP, 2.6 GHz Pentium 4, while this computer is similar to the K7S5A mainboard, different manufacturer, 1 GHz Athlon processor.

Any programs, commands or anything I might use on Ubuntu to determine the status of the keyboard's scroll lock, or would that more likely be a bios issue?

Edit: TRENDnet TK-207K kvm model number.

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General :: How To Switch Off/on GUI

Feb 17, 2011

I believe this is a famous question, nevertheless I haven't found a decent answer.Is it worth to switch off the Desktop Environment ?If so how do i switch it off and back on(real-time, not on boot) ?

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CentOS 5 :: Switch For IP To Name?

Jan 21, 2011

Within Windows you can do a reverse ping using the -a switch. I.e., ping -a 192.168.x.x. and it will return the system name.

What Linux command will return a Name to an IP?

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Debian :: How To Switch To Lynx

Apr 14, 2010

ENV: Linux lenny 5.04 stablePRB MC Custommizationthe default mc application to manage html files is konqueror how to switch to lynx ?

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Debian :: Switch Session Using Xdm?

Jun 8, 2010

I have xdm as my login manager, but I wanted to give some other window managers a try. I currently use Xfce, but I'm wanting to give WindowMaker a try. How would I choose this on login?

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Debian :: How To Switch Between GCC Versions

Sep 8, 2010

How to switch between GCC versions?

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Debian :: How To Switch Between Programs

May 25, 2011

I recently got a server up, and there's Debian on it. Text-based debian, no GUI. And i quitte like it, but i have one problem. In windows i can start program a, minimalize it and then start program b. But lets say i create a program with an infitite loop that only prints hello world on my debian server, I can't do anything else while its running, i have to press ctrl+c to be able to do something else. So my question is: is there a way to "minimalize" my self-written program to do something else, while its running, and to switch back later?

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General :: What Does Apache2 -k Switch Do

Mar 5, 2009

Does anyone know what the -k switch does? i.e., apache2 -k restart? I can't get much out of google but on my sarge based web server it's only with the -k switch that a restart actually works.

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