EMC Symmetrix Connectivity to HP UX Server

[chandramani_1]

Hi,
I am new to EMC, We got new Symmetrix array connected using FC to HP Unix server. When I did ioscan I am not able to see EMC in the list.Is there any other way? What is the exact procedure to connect? Can someone provide documentation for the same.

Thanks for ur help.

Chandu

[Sridhar Bhaskarla]

Hi,

I cannot give you exact procedure on how to configure LUNs on EMC. But once it is configured and zoned for the system, you would need to do the following to see them on the system.

ioscan -f
insf
ioscan -fnC disk

See if 'insf' creates any special device files.

-Sri

[John Dvorchak]

First of all did an ioscan show the fibre card as installed? If so then who ever manages the EMC array has to assign the luns to your system via the network name. This is not the IP/DNS name but a network name assigned to the SAN fabric for your sytem. Then the ioscan will show the devices and and insf -e will create the special files for the disks/luns.

Good luck,
John

[John Dvorchak]

Let me try and clear up a few more things. There are some utilities that should be on your system when dealing with EMC. One is the inq command to display the attached disks with serial numbers, capacities etc. Then there is the fcmsutil utility to diagnose and trouble shoot the Tachyon fibre cards that attach to the EMC. You can man fcmsutil to see how it works. It will be looking for the fibre cards for an argument so and ioscan has to show the card installed and will be /dev/tdx where /dev/td0 is the first /dev/td1 is the second etc.

[Camel_1]

try to run "symcfg discover" and then "symcfg list" to check if you are able to see the EMC frame.

Simon

[Mic V.]

Do you have a SAN (switches)?

Did your fibrechannel cards work with other storage, or are they new?

Basically, you:
- install fibre cards and drivers/software according to the documentation that comes with them (see http://docs.hp.com if you need documentation); use ioscan -fn or inq (or variation) to verify you can see the cards AFTER the drivers/software are installed; you must be able to see the cards before you can see the disks
- configure the Symmetrix (you can do it if you have ECC/ControlCenter; EMC can do it; you need something like VolumeLogix plus configuration of the switches in addition to configuring the Sym if you're in a SAN environment)
- ioscan -fnC disk (or variant) to see if the disks show up
- insf -ev (or variant) to install the special files
- ioscan -fnC disk (or variant) to verify you can see the device files

Your HP CE can help with the card install verification. EMC (if on support) will usually go out of their way to help as well. You can get professional services to configure the SAN, or it may be included with the VolumeLogix purchase.

HTH,
Mic

[Shaikh Imran]

Hi,
Please Read Each step Carefully.
ON EMC Side:
Have you configured the LUNS ?
If No then Please configure the Luns from the NAvisphere Manager or any other Software that came with your Symmetrix Box.This LUns are Notihng but the Bunch of Disks Configured with a RAID Level on your EMC Box.
=============================================
ON Server Side:
Install the Client Software of EMC or Symmetrix.This Client Sofware will have a configuration file where you will mention the host name etc..,,refer your Documentation.
First of all install the Fiber channel card drivers and reboot while rebooting connect the EMC's fiber cable to the card.
Now when your system reboots you must get the Disks
These Disks are Nothing But the LUN's Which you have created on the EMC Side.
e.g. you will get a device file = /dev/dsk/12t3d0 this is nothing but a single LUN of the size you created.
Now You know what to do with this Disk Device File.

Regards,

[Rita C Workman]

So everyone gets on the same page with you..

It would be helpful if you provided us:
The server model & O/S version..
The HBA part number on your server ?
The Symmetrix model number :
...and lastly, and this is important...
Is your Symmetrix connected via a SAN? or is it host-based connected ? And I think that may be what you have, your fiber directly connected between the server to the Symmetrix ?

===============================================
I would 'hope' that whoever ordered and installed the above, made sure that the HBA was the correct one to get. Because if they got the wrong thing, it (your server) may not be able to read the Symmetrix device connected to it. In which case you should see an entry in your ioscan file that reads:
NO_HDW or UNCLAIMED
But if they got the right one .. then first try running:
insf -e

and then re-run ioscan.

And whoever ordered your hardware should have ensured that basic installation was included for you. So the EMC CE should have already set up your binfile. Running the above command should help create any missing drivers files to your new luns (disks).

OK...get us the info and we all should be able to give you hand from there.

Rgrds,
Rita