Solved

Possible (and if so best method) to Run SSD RAID on Laptop

Posted on 2014-02-09
6
1,284 Views
Last Modified: 2016-11-23
Hey All -

I've got a Latitude E6470 which I'm about to upgrade a bit.  Below are it's current specs:
- Dell Latitude E6470
- Windows 8.1 x64
- i7-2640M CPU @2.80Ghz
- 16gb RAM (DDR3-1333 DDR3)  (2 x 8gb)  (E6470 supports max of 8gb per Dell's website, but after reading few posts, found that 16gb works.  Have used it for few months now without issue)
- x1 128gb SSD (OCZ Vector 4) in primary drive slot
- x1 320gb 5400RPM HDD in secondary drive slot

The secondary drive slot was actually a module bay I purchased which replaced the DVD Drive.  It allows you to use a 2.5" SATA drive instead.

I'm upgrading the 320gb drive soon when I thought it may be a good idea to just add another Vector 4 to it and run the two drives in RAID.  I have four questions about doing this, though...

1. Can I do it in this model laptop?  The BIOS surely doesn't support it as it comes stock with only 1 SATA port.  Given that, would Windows 8.1 alone be able to handle the RAID.

2. Since using a module bay which replaced the DVD Drive, is it's connection still just a standard SATA connection therefore any drive attached there just as fast (I/O) as if in primary drive slot?  The last thing I want to do is have the RAID degrade performance

3. Assuming above two things are good to go, would either of the two things above affect performance of the RAID and if so, how much do you think?

4. Honestly - do you think the speed difference would be worth it and very noticeable over single SSD?  If not, perhaps just upgrading with a bigger and faster HDD may be best.

Thanks Guys!
0
Comment
Question by:BzowK
6 Comments
 
LVL 34

Expert Comment

by:Dan Craciun
ID: 39846000
1. Yes, you can do soft RAID in Windows 8.1 Pro and Enterprise. Don't know in the home/unnamed edition
2. The connection is still SATA
3. You want a mirror or a stripe? In a stripe you should expect a 50% increase in read/write performance, in mirror you should expect an increase in read performance.
4. No. You won't notice the difference.

HTH,
Dan
0
 

Author Comment

by:BzowK
ID: 39846010
Thanks -

I do use Pro or Enterprise for Windows and would probably go with Stripe since I would think it would have the best overall performance increase.  However, if you say that I really won't notice a performance increase (except for just in benchmarks) then perhaps I'd be better off going with just additional storage.

Is that what you were saying?  Thanks
0
 
LVL 34

Accepted Solution

by:
Dan Craciun earned 500 total points
ID: 39846011
Yup, that's what I'm saying.

Running now on my desktop with 2 ssd (1 Intel 530 240GB, 1 Vertex 30GB - for swap) and 2 2tb hdds.
Had for awhile 2 530 in stripe, saw no difference. Maybe Photoshop started in 1.1 seconds instead of 1.2. Maybe.
0
Save on storage to protect fatherhood memories

You're the dad who has everything. This Father's Day, make sure your family memories are protected. My Passport Ultra has automatic backup and password protection to keep your cherished photos and videos safe. With up to 3TB, you have plenty of room to hold the adventures ahead.

 
LVL 47

Expert Comment

by:dlethe
ID: 39846074
SSD firmware is optimized for 128KB I/O and 4KB I/O.   Any I/Os that are also not aligned and are NOT a whole number multiple of 4 or 128KB will suffer.

Frankly, you're throwing your money away and are better off investing in a pair of hybrid SSD/HDD devices, then mirroring in host-based RAID1.   Make one partition 4KB, the other 128KB NTFS size.

Above will give best overall performance by far. But in the grand scheme of things, using a SSD in a laptop is silly unless you are doing a lot of database work where you need tens of thousands of RANDOM IOPS.  

The hybrid SSD/HDDs mix both technologies in the same device and squeeze better overall performance for laptops.
0
 
LVL 13

Expert Comment

by:Greg Hejl
ID: 39846080
can you see the drives in BIOS?  can you do cntrl i to access the Intel raid controller panel?
0
 
LVL 55

Expert Comment

by:andyalder
ID: 39851064
Can't agree that using SSDs in laptops is silly, Drop a disk based laptop and a SSD based one on the floor and see which one survives. The battery also lasts longer as SSDs take less power.
0

Featured Post

IT, Stop Being Called Into Every Meeting

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

Join & Write a Comment

Storage devices are generally used to save the data or sometime transfer the data from one computer system to another system. However, sometimes user accidentally erased their important data from the Storage devices. Users have to know how data reco…
How to update Firmware and Bios in Dell Equalogic PS6000 Arrays and Hard Disks firmware update.
This video Micro Tutorial explains how to clone a hard drive using a commercial software product for Windows systems called Casper from Future Systems Solutions (FSS). Cloning makes an exact, complete copy of one hard disk drive (HDD) onto another d…
In this Micro Tutorial viewers will learn how to use Boot Corrector from Paragon Rescue Kit Free to identify and fix the boot problems of Windows 7/8/2012R2 etc. As an example is used Windows 2012R2 which lost its active partition flag (often happen…

744 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

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now