Solved

SDD is RAID Still needed?

Posted on 2013-12-23
5
238 Views
Last Modified: 2014-03-20
Hello,

We were wondering with the memory wear algorithms baked into SDD's nowdays is RAID 1 still needed for server applications were data retention is important?

Thanks
0
Comment
Question by:PlumInternet
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 
LVL 47

Assisted Solution

by:David
David earned 125 total points
ID: 39736947
Of course it is.   100% of SSDs fail, eventually.
0
 
LVL 18

Assisted Solution

by:Netflo
Netflo earned 125 total points
ID: 39736950
Yes, its required for performance, scalability and availability reasons. If that's something which you're willing to risk then go without. I would strongly recommend for a server.
0
 

Author Comment

by:PlumInternet
ID: 39736954
I guess to expand on my thinking. If we have Raid 1 setup on 2 SDD's wont memory wear be happing at the same time therefore hdd failure would happen in the same time?
0
 
LVL 70

Accepted Solution

by:
garycase earned 125 total points
ID: 39737002
While an SSD has a different set of failure modes than a rotating platter drive, it still can and WILL eventually fail.   In general they're more reliable than rotating platter units; but they still aren't perfect !!

So Yes, you still want to take the same precautions you've always taken -- including RAID-1 arrays to provide fault tolerance for you data.

As for failing at the same time -- that's VERY unlikely.    They don't fail at some pre-determined time and/or utilization point ... no more so than rotating platter drives do.    Failure is essentially a random event ... it can happen the day you get the drive; or ten years later.   Even two drives subjected to almost exactly the same set of reads/writes won't fail at the same time ... and drives in a RAID-1 are NOT subjected to the same set of operations [Writes are done to both; but reads are not].
0
 
LVL 30

Assisted Solution

by:pgm554
pgm554 earned 125 total points
ID: 39737133
My personal experience with SSD's over the past 2 years (SanDisk,OCZ),is when compared to regular disks ,not as good.

 Getting about failure rate of about 20 or 30% and the folks that do RMA's are a joke.

I had a Sandisk SSD fail 3 weeks ago and they just shipped a replacement today.

OCZ not as bad,but they won't take your word they failed(Sandisk ,same thing).

You must ship it back and they must test before they will send replacement.

Never any RMA issues like this with regular disks .
0

Featured Post

Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Usually shares are where we want them for our users and we tend to take them for granted. There are times, however, when those shares may disappear causing difficulty for your users. One of the first things to try is searching for files that shou…
I have purchased two new systems and both are now Universal Extensible Firmware Interface (UEFI) based. UEFI is replacing BIOS for the desktop PC. It is a Linux based firmware with enough robustness it can communicate with a website without loading …
This is a high-level webinar that covers the history of enterprise open source database use. It addresses both the advantages companies see in using open source database technologies, as well as the fears and reservations they might have. In this…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…

688 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question