topic Re: How do I mount a external disk array to my server in Operating System - HP-UX

How do I mount a external disk array to my server

Henry Chua — Thu, 07 Oct 2004 01:53:01 GMT

I recently acquire an external disk array that is to be mounted to my system using "wide-scsi" single ended connection. But can I ask wat is the complete produce to integrate this array with my system. Thank you

Re: How do I mount a external disk array to my server

Ravi_8 — Thu, 07 Oct 2004 02:28:00 GMT

Hi Henry

you should be having a SCSI cable along with disk array. connect the cable to SCSI port of the system (system must be down) and load the driver if any. or install the latest patch bundle(available in support plus Media) when the system reboot run the comand
#ioscan -fnC disk.
and check whether the new disk array is claimed or not

Re: How do I mount a external disk array to my server

Shaikh Imran — Thu, 07 Oct 2004 02:29:09 GMT

Hi,

what type of array do you have ?
(I mean Model )
You will have the document along with the array for how to configure that with HPUX.

I will brief you the common procedure:

The simple procedure is to connect the disk array to the server run this command
#insf -e
This will install the disk device files for the external disks idenify the external disks
By
#ioscan
then use LVM to configure the logical volumes.

The above procedure is for,if you have the so called array as a JBOD.(Just Bunch Of Disks)
If you really have the array then RAID is to be configured on the array,you can either do this by sam or command line utility like arraymgr etc.., or the software like SDM which is supplied by the hardware vendor of the array.
The RAID created will be LUN for hpux &
a LUN is a single disk for hpux.
Now to configure a single disk using LVM
is not a big task.

Regards,

Re: How do I mount a external disk array to my server

Franky_1 — Thu, 07 Oct 2004 02:30:32 GMT

Hi,

after connecting the array correctly to the server and terminating it you should be able to see it as a new device with

ioscan -fnC disk

Then you can make newfs to lay a filesystem on it and finally mount it as whole or you'll have to integrate it into LVM to use it as several logical volumes

Regards

Franky

Re: How do I mount a external disk array to my server

Michael Tully — Thu, 07 Oct 2004 03:23:41 GMT

The right card (depending on your server of course) most probably is a A4800A. This should work well.

Re: How do I mount a external disk array to my server

Joe Short — Fri, 08 Oct 2004 08:36:24 GMT

Although simply connecting it to the server may allow you to ssee the array, depending upon what actualt array you have there may be more work involved to be able to use it.
You also need to configure the array itself. You need to define the RAID level or levels it will use, bind the phoysical disks together into RAID groups, create LUNs (Logical UNits) and present the LUNs to the server. How all of this is accomplished is entirely depndant upon the array itself. Most have a command line interface that can be access by directly connecting a terminal or PC to a serial port on the array. The more modern arrays also have a software component that is loaded onto the server or management PC to configure the array.
What make and model is the array?

Re: How do I mount a external disk array to my server

Dave Unverhau_1 — Fri, 08 Oct 2004 09:46:13 GMT

Henry,

If you can provide more specific info, such as the server model, type of I/O card in the server, and model # of the disk array, we can probably provide better help.

Best Regards,

Dave

Re: How do I mount a external disk array to my server

Henry Chua — Thu, 14 Oct 2004 03:09:03 GMT

Mange to resolve the problem.. thanks guys!!