Storage (SAN) Architecture

[psbstives]

Hi

I am doing my first piece of 'architecture' type work for a SAN deployment, using HDS technology, but I am lacking some of the basic knowledge to speak well on this....

My understanding is as follows:
Install disk shelves into the SAN chassis
Configure Disks at Hardware level into RAID groups (e.g. 4+1 RAID5 sets)
....
This is where my understanding is flawed, I have heard that you need to configure 'LUNs' - and some colleagues have said these should range from 9-18GB typically for Wintel/UNIX systems.... However
What dictates this?
And if a system needs a 'volume' of 100GB - how would the LUNs be pieced together so the server can see 100GB

Hope that makes sense, and someone can offer some views!

Thanks

 

[Chacalinc]

hmmm, you need some learning first.. this could be a basic question, but anyway, I didn't know it before studying it...

A LUN is the logical disk that will be presented to the hosts. The size of the LUNs will depend on the storage array brand, but ussualy it could support from 1 MB to 2 TB (as I said, brand dependant).

I recommend you to visit

http://whatis.techtarget.com/

and search for the following:

-SAN
- RAID
- LUN
- Zonning
- LUN Masking
- Fabric

 

[solarisman]

What type of HDS array,,,,Is it the Freedom Lightning 9900 series??? If so, you if you use Storage Navigator, you can use the LUSE utility to tie your LUNS together...