topic Re: lun configuration in Disk Enclosures

lun configuration

christian_derek — Thu, 20 Jul 2006 10:59:02 GMT

Hi,

I just received a pre-configure rx7620 running 11i 11.23 that boot from a VA7110, the array came only with one lun, this system will only be attached to the hpux. I thought that an array had to have lun0 of 10mb dedicated for server communication and I thought that it was better to have 6-8 lun. What will be the impact of keeping the system like that and what are the recommendations if we should modify it.

Thanks,

Re: lun configuration

Torsten. — Thu, 20 Jul 2006 11:06:05 GMT

If your server is the only OS instance with access to the array, you can leave as is.

In case of a multi host environment (or more than 1 partition), most OS needs to see the LUN 0 to find other LUNs. In this case you should have a LUN0 with a size of ~10 MB and enable all hosts to access this LUN.

Re: lun configuration

christian_derek — Thu, 20 Jul 2006 11:10:24 GMT

So it will be ok to have only 1 lun for the entire system?

Thanks,

Re: lun configuration

Torsten. — Thu, 20 Jul 2006 11:17:45 GMT

It is OK to have one LUN for vg00 in case of this kind of array.

Re: lun configuration

christian_derek — Tue, 31 Oct 2006 16:00:09 GMT

Hi,

On my hpux host I need more disk space, in the command view, I currently see that I have 193gb of disk space not assign, what should I do?

I currently have lun 0 of 100gb attach to hpux 11.23 on my va7110.

I also have a logical volume call /data, should I create a new lun under a new vg and move /data there? What is the benefit of doing that?

Thanks,