Tom's Hardware > Forum > Storage > NAS/RAID & Technologies > Need help with RAID!

Need help with RAID!

Forum Storage : NAS/RAID & Technologies - Need help with RAID!

Tom's Hardware: Over 1.4 million members in 6 different countries available to answer all your high-tech questions. Sign up now! Its free!
Ask the community Add a reply
Word :    Username :           
 
Mallows   07-31-2009 at 04:07:48 AM

I was wondering if raid 0 works if you have one SSD and one HHD or one SSD and two HHDs, and vice versa. I was also wondering if RAID 0 works with two drives that have different specs. Help would be appreciated!

Message quoted 1 times
Add a reply
Sponsored Links
Register or log in to remove.
billb_gcc   08-01-2009 at 02:41:25 PM
- 0 +

I'm pretty sure RAID 0 will work with drives having different specs (even though it's not a good idea to mix varying RPM drives for example). In the case of different capacity drives it will have a capacity of the smallest drive times the number of drives in the array rather than the total of all the drives added together. With regard to the SSD side of your question, I'm honestly not sure. In theory it would work, but that doesn't mean it's a good idea...

------------------------------ William Buckley
CompTIA A+ Certified Professional IT Technician
Computer Information Systems Student, Genesee CC, NY
"Using the word Cisco in the same sentence that requests help from Road Runner tech support is akin to teaching a pig to sing"
 Reply to billb_gcc
trentdk   08-01-2009 at 07:35:13 PM
- 0 +

Sure, most RAID firmware allows you to make an array of anything. Whether or not that is a good idea -- try it out, and let us know :)

Reply to trentdk
Bronze Storage badge sminlal   08-01-2009 at 07:35:57 PM
- 0 +

You can certainly mix drive specs, and in most controllers you can even mix drive sizes. You won't do any harm - but you may not get optimal performance.

Reply to sminlal
440bx   08-23-2009 at 04:08:11 PM
- 0 +

Mallows wrote :

I was wondering if raid 0 works if you have one SSD and one HHD or one SSD and two HHDs, and vice versa. I was also wondering if RAID 0 works with two drives that have different specs. Help would be appreciated!



It should work but, if you create a raid 0 with a hard drive and an SSD, you are pretty much handicaping the performance of the SSD down to the performance of the HDD.

The RAID controller has to synchronize the two devices, causing the SSD to perform as if it were another HDD. This will happen in reads and writes. The only time your SSD would return a perfomance benefit would be when the file you are reading/writing happens to be placed on the SSD and happens to fit completely in the RAID stripe size, if either one of these conditions are not met (and one implies the other) then your SSD would just be another HDD. Essentially a waste of an SSD.

They don't recommend identical devices in RAIDs for no reason ;-)

HTH.



Reply to 440bx
Ask the community Add a reply
Tom's Hardware > Forum > Storage > NAS/RAID & Technologies > Need help with RAID!
Go to:

There are 593 identified and unidentified users. To see the list of identified users, Click here.

Forum map
Bestofmedia Forum ©
2000-2009 Bestofmedia Group
Page generated in 0.497 seconds
Sponsored links
  • Ask the community now
  • Publish
Ad
Related Topics
See all relatives topics
They won a badge
Join us in greeting them
How do I win badges?