ssd raid 0

Hi

Need to build myself a virtual centre server, I like to keep it as a physical unit. I need fast and secure and this query is about using Raid controllers with SSD's.

SSD performance can be fantastic but I haven't seen many offerings for Raid controllers that can support take advantage of this speed.

Anyone out there using a config like this that they can recommend.

Tia
Jo
Jo CoxAsked:
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KrasziCommented:
Hi!

It may be very fast to make an ssd raid BUT it has its own problems. Usually ssds purchased at the same time in raid will be written similar times. These wont be so stable for long time. If you will use it for virtual servers I would consider changing disks regularily (1-1,5 years each).

As for raid controllers there are several of them, like:

Adaptec Series 7 RAID adapter
Highpoint 2720SGL 6Gbps RocketRAID Controller

Regards,
Kraszi
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andyalderSaggar maker's bottom knockerCommented:
Understandably some RAID controllers don't work well with SSDs, the controller's cache may even slow it down. Might be worth reading this - http://forums.servethehome.com/raid-controllers-host-bus-adapters/1492-lsi-fastpath-key-what-does-do-how-does-do.html

You might also consider LSI CacheCade, you can have slow disks plus the SSDs being used as cache, see http://www.youtube.com/watch?v=jkfPK-Dgl68
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DavidPresidentCommented:
You are throwing money away using a RAID controller with RAID0.  Host-based (software) RAID0 will be just fine.  In fact, it will likely be much faster.   LSI does have some RAID controller AND SSD combinations that are qualified together, but you're talking $5000+

Native software RAID stacks in LINUX, Windows, and Solaris have been qualified to use SSDs.
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sentnerCommented:
The problem with using RAID0 is that you are doubling the chances that you'll have a failure that results in data loss, since there is no data protection.  If either disk fails, you lose the entire RAID set.  I'd suggest going with RAID1 instead, which will mean you need a larger SSD of course.  You can use the built in BIOS based RAID that many motherboards now come with.

My home server has been running for about 4 years on a RAID1 set of Intel X25M SSDs (160GB), using the motherboard's Intel RST software RAID with no issues, and excellent performance.
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Jo CoxAuthor Commented:
Good Feedback. Thanks guys
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