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Old 12-20-2016, 12:59 PM   #1
robinselvam
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Question Need help on setting up FC storage lab environment to practice


Hello Friends,

i need help on setting up a lab environment on practising FC storage on rpm based
linux servers . i have hardware of laptop with 8GB Ram with centos & KVM installed on it
please suggest documents and distro's to try FC Storage practice
 
Old 12-21-2016, 08:47 AM   #2
TB0ne
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Quote:
Originally Posted by robinselvam View Post
Hello Friends,
i need help on setting up a lab environment on practising FC storage on rpm based linux servers . i have hardware of laptop with 8GB Ram with centos & KVM installed on it
please suggest documents and distro's to try FC Storage practice
You mean AGAIN???: http://www.linuxquestions.org/questi...ms-4175582528/

You were given a suggestion six months ago...never followed up/posted back. In that you said you wanted to "add LUN's to san"...which is what FC (Fiber Channel) is/does. 99% of Linux distros can easily have a fiber channel card added to them, and work with SAN devices/storage. There may be some ways to SIMULATE such things without hardware, but most of it's old...iSCSI can be done easily (again, works with ANY Linux), and there are lots of tutorials you can find.

Just saying "I need help", then not telling us where you're stuck is (essentially), asking us to go look things up for you, give you links, etc. Here's a better suggestion: you've been here for FOUR YEARS now...why don't you tell US what version of CentOS you have, what your goals are, where you've gotten with your research (and where you're stuck), and we can try to assist you.
 
Old 12-28-2016, 10:46 PM   #3
InterceptorF
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Talking FC environments

LOL... that was an awesome slap-down - hehe ---

There are fc switches in all this with fc controllers that have wwn for the paths and wwpn asignments for ports to the LUNS. Draw it first , note the wwns of the HBA's and the Array Controllers, add the wwn;s to their respective zone or leave it all open.
Fire up fc switches first then storage - stabilize - bring up server cluster member one at at time. Once active/passive established, start services on the master node. Validate multipath is enabled and running on the master node. Save the /etc/mount and /etc/multipath directory once you are running.
If you work with fc you want to get familiar with multipath and how to use it. Think of it as automatic hot potatoe. The paths can change if they quit responding round robin is most common but you can direct pathing..so read up on that and ensure that you have all the right modules enabled in the multipath.conf file... look at fc manufacturers like Cisco MDS user guides, DotHill FC Array user guide, NetAPP,Brocade,hp, Dell, Emulux.. look at their documentation libraries - it's all available. They would much rather have the customer read and self repair so its always available and up to date. Once you find the pdf's sites for zoning and terminal cli manuals in pdf at the brocade site, read them and design the zoning. Draw it in Visio and create the pairings - two wwns; one from each array controller , and two wwn of the port on the HBA's ; one from both cluster members. The linux part is pretty simple actually, its seeing the logical pathing of fc that makes it a challenge to wrap your head around... and use the cli, damn it...
 
  


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