OpenSUSE Hardware :: Setup Multipath With Failover Policy On 11 - Connection Failed Over To Second HBA Connection To SAN
Aug 13, 2009
I am trying to setup multipath with failover policy on openSuSE 11. I have two qla2xxx HBA's installed and they appear to be working. Here is the output of "multipath -l" command
[Code]....
While testing, I pulled one of the two connection to SAN, and the connection failed over to second HBA connection to SAN. When I plug the cable back in, it does not fall back to original connection... It stays in failed state. Also, I noticed that failed disk (sdd disk) comes back as (sdg disk), which is probably why connection does not fall back to original HBA. But, when I run "/sbin/service multipathd restart" sdg disk shows as as enabled in multipath -l...
I have a linux machine, attached to a fibre channel SAN.
We're in the testing phases and we're attempting to get all of the bugs worked out before this goes live.
If i have my host streaming data to the storage device on the san (or from the device on the san) and simulate a path failure (by shutting down one of the host's ports on the FC switch), multipath does not pick up on another path until about 45 seconds have passed.
I can verify this by watching the statistic graph (which updates once per second) on the storage system.
I see iops running along rather nicely, and then they drop to 0 for 45 seconds, then pick right up to normal again.
This is a RehHat EL 5.5 system, with qlogic HBA's.
Am i being too picky? I'd expect multipath to recover in under 30 seconds, so as to not alarm host applications running on the linux host... 45 seconds seems like a long time to wait for a disk operation to complete.
Any tips on tuning Multipath, or the qlogic card? As it is, i've got the following options in my modprobe.conf.
I recently setup ubuntu 9.10 in my desktop..I don't know whether the connection is dialup or not. I used the connection with cable connection. I have got the following information from my ISP:
User name: n372_asad_go@brisksys.net service name: brisknb password: 16251521
I followed the tutorial found here [URL] but when I try to access [URL] I get the following: Code: Secure Connection Failed An error occurred during a connection to www.mydomain.com. SSL received a record that exceeded the maximum permissible length. (Error code: ssl_error_rx_record_too_long) Not sure what I might have done wrong... I have retraced all of my steps and I don't believe I missed anything.
I tried to finally set-up surround sound on my Ubuntu 10.04 machine and i was successful in doing so after a while of changing settings and tinkering. After doing so though, i was later in the day not able to get into the Pulseaudio Volume Control, therefore, everything is stuck where it is and i can't change anything. When i try to open Pulseaudio Volume Control i get the error message, Connection failed, Connection refused. My programs still play sound and i can control the sound of the programs through the programs, but i cant control the sound of the sorround sound now and my main sound bar only affects my stereo speakers, not the surround ones.
I believe this may have happened after the random disk check on restart, but i can't 100% confirm that and i'm not even sure if they are related. I still have sound, but i have no way to control the volume of my entire system at once. I did some looking around online and saw that others are having or had the same issue, and it was through different versions of Linux also. somehow reset everything so i can access PAVC and start over . I also tried steps listed in another thread here on the same topic, but they weren't working and it also seemed to be for older Ubuntu versions.
I got an error while working with NetworkManager in new RHEL6/ Fedora14. I have a ZTE AC 2726 3G wireless modem. i had tried to connect it via NetworkManager . It only requires username and password to connect but the thing is that after putting all the credentials i had checked the option" available to all the user "and while i was trying to save the profile it shows the following error saving connection failed 0 can't write connection type 'cdma'I had google so many times around this error but no better solution is there .
vsftpd not working on my CentOS system. I tried logging in using FileZilla but the error message was: Connection attempt failed with "ECONNREFUSED - Connection refused by server".
I am running an Ubuntu Server on a VirtualBox VM running on my windows machine. So I've created a self-signed certificate using the following tutorial: [URL]
From this tutorial I'm left with 3 files: server.key server.csr server.crt
Then I found this very similar tutorial that has an extra bit on installing the certificates in apache: [URL] So I followed it's instructions which boil down to this:
[Code]...
So I'm thinking this should work now. However in Chrome I get: SSL connection error Unable to make a secure connection to the server. This may be a problem with the server, or it may be requiring a client authentication certificate that you don't have. Error 107 (net::ERR_SSL_PROTOCOL_ERROR): SSL protocol error. IE8 gives me a typical "Internet Explorer cannot display the webpage" Note that [URL] fails while [URL] works fine, so it's definitely something in my ssl setup I'm thinking.
I'm trying to setup PPPoE connection to establish my DSL connection, but I got
Code: pppoe[3885]: read (asyncReadFromPPP): Session 4479: Input/output error pppd[4104]: Cannot determine ethernet address for proxy ARP in my sylog file.
When I do pppoe-start, it connected but I cannot ping into any destination (even to my modem in the same network). DNS servers are explicitly set in pppoe.conf and resolv.conf. Did I miss anything?
I am trying to Setup citrix ICA client 9 on Ubuntu 9.04 Server. I installed it very easily and I am not getting any lib error also. But when I try to connect to the citrix server, it fails with a pop up saying "Error in Network Connection Network or Dialup connection may be preventing ......" This is driving me crazy from 3 days. My project is to check the feasiblity of a Linux desktop
I seem to be having real difficulty downgrading my Wicd as I keep getting "Connection Failed: Unable to Get IP Address", and after having the trouble in another laptop (Ubuntu Mint) with the same problem...oddly enough the solution (other than buying another router) was to downgrade the wicd. butttt.... Now I not able to uninstall Wicd and therefore can't install the downgraded rpm file.Below is the error when trying to delete Wicd 1.7.0.2/ On another note,,, is there an easier one stop search for available software?, One that doesn't require an intimate knowledge of repositor
Error Subprocess failed. Error: RPM failed: /var/tmp/rpm-tmp.T9VAvE: line 1: /usr/share/rpm-helper/del-service: No such file or directory /var/tmp/rpm-tmp.T9VAvE: line 2: /usr/share/rpm-helper/add-service: No such file or directory /var/tmp/rpm-tmp.T9VAvE: line 3: /usr/share/rpm-helper/add-service: No such file or directory error: %preun(wicd-1.7.0-1mdv2010.1.x86_64) scriptlet failed, exit status 127
I recently took a WIRED internet connection (from the people who provide cable TV) and switched from ubuntu to openSUSE11.2. . I am not able to set up an internet connection in openSUSE 11.2. I have been given a static IP, and the following info
subnet mask gateway dns server alternate dns server
how do i setup an internet connection with these in openSUSE 11.2.
Today I switched from Ubuntu to OpenSuse. But I can't setup my Ethernet connection.I have 2 PCs connected with a crossover cable, one with Ubuntu, the other with OpenSuse 11.3. Lights are on in both NICs.
am finding it very hard to get a wireless connection working, I am using openSUSE 10.3 (i586)and I have a Edimax EW-7711UTn USB adaptor, I have tried to follow the instructions on this forum and I think I have set it up using YaST2 but I still can not connect to the internet.
I have just upgraded my openSUSE installation from 11.0 to 11.1 which everything is working great. Kudos to the development team and all those involved! I really like 11.1. One problem I have encountered is I cannot get clusterssh working. It appears to install just fine but whenever I try to execute like I did in 11.0 I get the following error: Connection to server failed -- (version 11.0) No protocol specified at /usr/local/bin/cssh line 1883
I tried to find a version for 11.1, rpm version that is, but no luck. I even download the source from SourceForge and still nada, same error. Not sure what is going on and looking for some assistance cause I really need clusterssh or another means to connect to several other machines to conduct changes.
Download (curl) error for [URL]... Error code: Connection failed Error message: Failed to connect to 2a01:e0c:1:1598::1: Network is unreachable
I read somewhere that I should deactivate IPv6, which I did with no success. It seems to happen since I upgraded gnome following this link : Archive:GNOME 2.30 - openSUSE My Internet connection is of course alive and working.
I'm extremely new to SuSE Linux. I wanted to move away from Windows and so I decided to reload my Desktop with SuSE linux.I have had no trouble until now. I'm trying to connect to my work VPN connection. From my laptop (which unfortunately is Vista) I'm able to connect without any issues. However, when I tried out the KVPN application on my SuSE linux, it just doesn't work. I get the error: Authentification has failed. As a side note, when I type ping google, the packets are received 100% but when I ping my company address, no packets are received. Hope this info is useful.
(I'm probably going to have my forum account revoked due to excessive usage ) I'm setting a VPN connection on openSUSE 11.2. Using the networking icon on the tray I add a PPTP connection, set it up but I receive a message 'VPN connection failed'. Googling it up I tried changing a setting called 'refuse-eap' to 'yes' but it doesn't seem to work. Here's the result from the log file:
t "Failed to Connect Firefox can't establish a connection to the server at127.0.0.1:3580." when I try to open a Help File of one of the applications I have.My /etc/hosts file has its entries right:127.0.0.1 hostname.hostdomain hostnameMy firewall is also disabled.
nmap -sT -O localhost gives me (I have included some): 2401/tcp open cvspserver
I have just done a new install of the latest opensuse 32bit and for some reason I cannot connect to the internet, when I click on mange connections the vpn tag is highlighted and all the other tabs are grayed out and I cannot select them. So I can't setup a internet connection wired or wireless. I was just using Kubuntu and did not have this problem. My card is broadcom.
I am having an issue with KPackageKit, actually 2 issues but one makes it unusable. The major issue is that when I go to apply the updates I get the following error message (at least here are the details of the message)
I do not run my connection through a proxy and my internet works correctly. This is on a laptop I upgraded using zypper from 11.3 to 11.4 (I did the same with a desktop which does not have this issue). zypper refresh successfully refreshes the repositories, and the various Yast repo tools all work correctly. Additionally after I am shown the updates and am prompted for root pw, the packages will no longer show up for a while, each time it tries to look for updates the message comes through but they will show up after a while again. The other issue I have is that it requests my pw multiple times, this also happens on my desktop that actually will update. I get prompted twice, they are immediate and back to back. This one is a little minor annoyance but there should be no reason that it needs to make this request multiple times.
I had this issue with Fedora Core 13, so I switched my laptop back to OpenSuse and continued to have the problem. I can do a host lookup for software.opensuse.com and I get a correct response ... Code: linux-edxs:/etc # host software.opensuse.org software.opensuse.org has address 195.135.221.150 linux-edxs:/etc # host download.opensuse.org download.opensuse.org has address 195.135.221.134
Firefox works. Thunderbird finds my mail servers just fine. SSH works. But then when I try to do anything involving software updates or installation, I get ... Code: linux-edxs:/etc # zypper update Retrieving repository 'Updates for openSUSE 11.3 11.3-1.82' metadata [] Download (curl) error for '[URL]': Error code: Connection failed Error message: Couldn't resolve host 'download.opensuse.org'
I've seen others here post queries about this, and I'll tell you what it was in my case: our DSL modem's DHCP server returns its own IPV4 address as the DNS server. When I looked at /etc/resolve.conf, I saw "nameserver: 192.168.50.254" on the last line -- the IPV4 address of our DSL modem. I manually inserted "nameserver" lines for our ISP's two actual DNS servers, and everything magically started working. Why this should confuse some software under Linux, but not other software, is a mystery. It also seems to be Gnome-specific (I didn't have this problem with OpenSuse 11.3 and KDE 4).
Ask if they're using Gnome, and ask them to check resolve.conf. A lot of DSL modems and home/small office routers return their own IP address (i.e., the same as the gateway address) for the DNS server on a DHCP query. The solution is to manually edit resolve.conf and put in your ISP's DNS server addresses manually. Incidentally, just my opinion, but Network Manager needs to make this an option. Under Windows, for example, you can select "automatically assign DNS" or you can enter them manually, even if you're using DHCP. It'd be nice if Network Manager permitted that.
im on node1 when i type the command ssh node2@ip the terminal hangs up a bit then an error message stating that connection timeout but here is a thing: i cant ping to node2 but i can terminate the ping manually using ctrl+c when i terminate the ping usual message appears stating 10 packets transmitted, 100% loss
ps: when i go to node3 and ssh to node2 it works fine and also i can ping from node3 to node2 very fine. and the firewalls are down at all nodes -all wired connection over a switch
I can make a connection to the vpn server, the connection starts, but nothing happens! My IP address remains the same as previous! There is nothing added to my Knetworkmanager, I'm a beginner I should use a pcf file for my vpn connection. I use it properly, I'm sure because the connection starts and an icon is added to my panel and remains until I disconnect.
I checked it via ifconfig -a, the last part (which is for vpn) is:
I'm currently running 11.3 and decided I'd try upgrading to 11.4 following the instructions here: SDB:System upgrade - openSUSEUnfortunately, my attempts are defeated at the point of trying to refresh the new repos; I get the following message (for the oss repo, in this case):
With 11.4 replaced by 11.3 in the repo url, it refreshes just fine. The only repository that works when I change 11.3 to 11.4 is the Packman repo. I'm not really sure why the connection fails for 11.4 but not 11.3!
Further info: I have an old router with no IPv6 support, but have IPv6 disabled system-wide. I can enter the url for the repositories into firefox and they come up just fine - it's only with zypper/YaST that I get the above error message.I also tried upgrading using the network CD but ran into the same sort of problem. In this case it may be because the CD installer doesn't disable IPv6. (I didn't want to download the DVD at my connection speed, and the KDE live CD is not listed as suitable for upgrade).
I have an adsl modem acting as a bridge to my router my setup was working well for more than year now , but then the internet went slow . I set the modem back to PPPoE the problem was with the DNS server of the ISP so using ifup i set the dns t 8.8.8.8 (google) the connection is back , but when i set the modem back as a bridge slow internet does the router know that my dns is 8.8.8.8 or i should set the dns on the router ? I can't see an option to set the dns on the router ( i just enter my username and password from the isp to use PPPoE mode ) by the way i called the isp support they kept telling me to restart , i told them i did but i never restarted my pc . I'm sure if i tell them i'm running linux they will blame the os !
What is the current state of NFS failover (i.e. setting up two server with shared storage, with automatic failover if one fails?) I've seen a cookbook, but no details that would let me assess how well it works. There are lots of complex issues with data consistency, but the detailed information on that is years old. Our needs are fairly simple: 2 servers, a shared array, and I'm reasonably sure that we don't use locking. However we'd like failover to work reliably without loss of data.
Have been tasked with a couple of Sunfire X2100 that I am slapping Fedora 11 onto for some high profile tasks around the office. Have two drives of the same size in each server and would like to have the two disks mirrored for redundancy. Admittedly I am new at Linux administration and am feeling over my head.
1. Can this be managed during the installation process of Fedora 11? 2. If yes, let me know the step by step please. 3. If no, I take it a cron job of rsync is going to be my best option. 4. Alternatives insights etc.
I got this error for two days.back then I googled this error and i got some information about log file in /var/log/syslog but i couldn't find it in google at all. this is all i got from syslog . look at the red paragraph
I use 10.04. I have network-manager, openvpn, pptp installed open vpn requires some certification files that I don't know where to get from and the guys who are providing the vpn for me don't offer any, actually they don't know anything about Linux and Ubuntu. I can easily make a connection for windows xp but in Ubuntu...
For pptp: I enter my gateway as the "host in win XP": vpn.their-website.com my user name: ***** my pass: *****
I leave the NT Domain field empty since I have no idea what it is? Apply, and the connection will be created. But, now, how the hell am supposed to connect? I looked all over the net but nothing! And please don't refer to something in panel (the network notification icon) I have deleted all the panels and in main panel I've removed every icon, tell me what to do in menus or in terminal.
