Query for CISSP topic on SAN

niceniks

I am going for the examination on 7th Feb 2015. I have 1 query
What is the difference between HSM ( Hierarchical Storage Management) & SAN (storage area network) ?

It is confusing me a lot as it is seeming to me that both are being used for same & working also like same??

Guys plz help me.:

JDMurray

Yeah, questions found on **** can be confusing.

amol9w

If you do not want to fail...extend your exam and study more. Don't how come SAN & HSM are same in wildest of my dream even though i am not expert in storage

niceniks

dear amol9w if you have answer for my query plz tell me

amol9w

plz google this are basic technical question not the ones where you need to apply mind. I hope this will be good for you rather than giving you the answer. Or if possible explain your logic why you find it same. i can answer you on that.

niceniks

in SAN only hard disks are used or like HSM all the things like jukeboxes & tape drives. are both online or offline for storage??

amol9w

Yes SAN only HDD are used of one type and not multiple type whereas HSM involves multiple medias...Ok i think you are thinking today's SAN also offers feature of moving less accessed data to lower cost disk.....But remember SAN is for less data...HSM is like archieve of data with current data in primary storage(which can be SAN)