RAID can any1 help

[deekemon]

Hey sorry I had to post this in the cpu section. It seems this part of tom's community gets more hits. Well I have done some mild research on raid controllers and what not, havent seen in writing anything about the hard drives needing being the same??? I was asked a few days ago if for instance the rpm needed to match or the size. I was unable to answer these been rather stumped. And there are multiple types of raid? any help much appreciated!

 

[ChipDeath]

there are loads of different RAID setups - Hard drives do not need to be the same size [I think] - but as I understand it it will only use as much space as <b>the smallest disk</b> on each one.

As for different speeds - why would you want to? It would probably <i>decrease</i> performace as one disk's always waiting for the other..

Just do a google search for more info, there must be loads of it out there.

---
$hit Happens. I just wish it would happen to someone else for a change.

 

[slvr_phoenix]

Just do a google search for more info, there must be loads of it out there.

There <i>is</i> a huge steaming pile of info out there. There is also a considerable amount of info just in THGC <i>and</i> on THG.

"<i>Yeah, if you treat them like equals, it'll only encourage them to think they <b>ARE</b> your equals.</i>" - Thief from <A HREF="http://www.nuklearpower.com/daily.php?date=030603" target="_new">8-Bit Theater</A>

 

[sjonnie]

An extremely simple investigation into what RAID is will demonstate that pretty much identical drives are going to be best. Differences in drive size will just mean an overall loss in total storage space and differences in performance will mean overall decreased performance.

My advice before you post on forums again is to search google and forums to find answers to your questions. For instance, the RAID faq on this forum will answer all your questions directly.

<A HREF="http://www.anandtech.com/myanandtech.html?member=114979" target="_new">My PCs</A> <P ID="edit"><FONT SIZE=-1><EM>Edited by sjonnie on 07/03/03 05:55 PM.</EM></FONT></P>

 

[soulprovider]

I think data access is one of the key factors in good drive performance and these are improved with both faster spindle speeds and larger caches.

If you've got a pair of slow drives in a raid 0 configuration they'll only really cut the mustard if you're accessing a large file thats relatively unfragmented. Also every chain is only as strong as it's weakest link if you get my drift.

As the vast majority of data accesses will be small files you'll be better going for at least a 7200rpm /8MB cache drive to begin with. After that match it with another the same for a good Raid 0 configuration.

<b>Vorsprung durch Dontwerk</b>.....<i>as they say at VIA</i>