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SSD Recognition During Boot

aimlessdesigns
Level 7
Doing a Crosshair V forumla-Z build. I have 5 storage devices. 4 SSD's and 1 HDD. 2 of the SSD's are identical (which may not be relevant). They are the Kingston HyperX 240 GB which I plan to configure in Raid 0.

Anyways, only one of those Kingston SSD's shows up on the American Megatrends splash screen. When I go into UEFI I see all 5 drives including both Kingston SSD's. When I boot into Ubuntu (from one of the other drives) I can see them both there.

Both Kingstons are on Port 1 & 2 respectively. Port 1 is what doesn't show on the splash screen. The fact that both drives are identical could be meaningless.

It'll be hard to swap drives around and test but I'm willing to try later. It's a caselabs case and these are mounted in the stealth tray and everything is wired up, making it a little bit of a challenge to swap drives around. For now I'd just like to know if anyone has had this experience or might have some ideas. Both drives are fairly new and have been tested so I doubt one is failing.

THanks.
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8 REPLIES 8

dertester
Level 7
As the drives show up in linux and uefi i would say everything is fine.
As i havent configured a raid on these boards i dont know it there is a problem.

Have you tested already? If not i would just set up the raid and try then.. Not sure if your port numbering is the internal numbering or on the ports but some are on the asmedia and some are on the 990Fx, think they should all run on the 990Fx



Offtopic:
If you dont plan on massive file transfers with big files, there is no gain in raid 0.
The latency is what makes ssd´s so much faster and latency is going to get a slight hit on raid 0.

So for games and your operating system you will maybe see cool numbers in file transfers but your actual boot and performance will be worse.

And you already know that failure rate is doubled.. Not only by the drives, but loss of power, cables getting lose etc..

dertester wrote:
As the drives show up in linux and uefi i would say everything is fine.
As i havent configured a raid on these boards i dont know it there is a problem.

Have you tested already? If not i would just set up the raid and try then.. Not sure if your port numbering is the internal numbering or on the ports but some are on the asmedia and some are on the 990Fx, think they should all run on the 990Fx



Offtopic:
If you dont plan on massive file transfers with big files, there is no gain in raid 0.
The latency is what makes ssd´s so much faster and latency is going to get a slight hit on raid 0.

So for games and your operating system you will maybe see cool numbers in file transfers but your actual boot and performance will be worse.

And you already know that failure rate is doubled.. Not only by the drives, but loss of power, cables getting lose etc..


Thanks for the reply. I haven't got far enough to actually test the Raid. I've only tested the drives individually on my other Linux box.

I've had 2 OCZ SSD's in raid 0 for years. I understand the implications involved and have regular backups. I do transfer a lot of high res photo/video files onto and off of the raid. I don't care about an extra half second or whatever on boot honestly...it boots so crazy fast on my other box it doesn't seem worth worrying over.

TheNerdBench
Level 10
Welcome to the ASUS ROG Forum!

If the BIOS is seeing all of your drives that is what counts 🙂 The fact that Ubuntu also sees both of the SSD devices tells me once again that everything is fine. You simply may of discovered a "bug" that causes the BIOS during the POST to not display all of the storage devices correctly. If you really want to satisfy your question if everything is OK you could simply swap the SATA Data Cables going to the SATA connectors on the motherboard as this would have the same affect.

I'm sure you are aware but for other please note that implementing RAID-0 (and JBOD) offers no fault tolerance-just a performance increase...if one drive is lost you lose the data on all of the drives. RAID-1 does offer better performance but less storage capability but at least you will have some fault tolerance built into your system.

PS: Check out the SMART data on the drives too...the SMART Monitor Utility from Acronis is easy to use (we use that in the computer hardware class that I teach) just as another tool to verify that all is well.

[/HR]
For trouble-shooting tips see my blog at:


[/HR]
http://thenerdbench.blogspot.com/p/bench-testing.html


[/HR]
MB: Crosshair V Formula-Z • CPU: FX-8350 • GPU: Asus Matrix R9 280x • RAM: 8GB of Crucial Ballistix Tactical Tracer (1866)• PSU: Thermaltake DPS Thoughpower 750 Watt • CPU Cooler: Thermaltake Frio Advanced • Keyboard: TT Sports Challanger Ultimate • Mouse: TT Sports Black Element • Case: Thermaltake GT Level 10


[/HR]

TheNerdBench wrote:
Welcome to the ASUS ROG Forum!

If the BIOS is seeing all of your drives that is what counts 🙂 The fact that Ubuntu also sees both of the SSD devices tells me once again that everything is fine. You simply may of discovered a "bug" that causes the BIOS during the POST to not display all of the storage devices correctly. If you really want to satisfy your question if everything is OK you could simply swap the SATA Data Cables going to the SATA connectors on the motherboard as this would have the same affect.

I'm sure you are aware but for other please note that implementing RAID-0 (and JBOD) offers no fault tolerance-just a performance increase...if one drive is lost you lose the data on all of the drives. RAID-1 does offer better performance but less storage capability but at least you will have some fault tolerance built into your system.

PS: Check out the SMART data on the drives too...the SMART Monitor Utility from Acronis is easy to use (we use that in the computer hardware class that I teach) just as another tool to verify that all is well.


I feel like I should always add a disclaimer when I mention I run Raid 0, that I'm aware of the implications. But thanks. Guess the way I see it if you can configure the raid (esp in Linux) then you are knowledgeable enough to understand consequences.

I tried swapping the two with each other on Sat a headers and still only one gets recognized. To try and swap with my other drives is a little more challenging since I basically have my system fully built and the stealth tray, while awesome for concealment, makes messing with stuff like that a pain.

I should know better than to skip unit testing llLoL.

dertester
Level 7
And i forgot to mention that trim dont work from the OS/Driver side.

You may be lucky that your drive supports some type of internal trim. But it could be another reason why you will get less performance than with standalone drives

dertester wrote:
And i forgot to mention that trim dont work from the OS/Driver side.

You may be lucky that your drive supports some type of internal trim. But it could be another reason why you will get less performance than with standalone drives


I'll check into that good point. Think with newer drives like my Kingstons it works fine and I've never had an issue on my other SSD raid with slightly older drives.

dertester wrote:
And i forgot to mention that trim dont work from the OS/Driver side.

You may be lucky that your drive supports some type of internal trim. But it could be another reason why you will get less performance than with standalone drives


Although this is a bit off topic, Kingston tech support confirms that trim is unnecessary and the controllers handle garbage collection with Raid 0.

TheNerdBench
Level 10
I'm still thinking you found a bug issue with the POST but if nothing else grab a spare SATA Cable and hook another Hard Disk and see the results. I'm really thinking the POST is getting messed-up due to duplicate drives...OR...maybe there is a limit the POST has on the number of hard disks that will be displayed. If nothing else turn on your splash screen so you don't see what drives are detected 🙂

No problem on the RAID-0; it was more for the benefit of less experience users 🙂

Let us know what you find out...kind of curious.

[/HR]
For trouble-shooting tips see my blog at:


[/HR]
http://thenerdbench.blogspot.com/p/bench-testing.html


[/HR]
MB: Crosshair V Formula-Z • CPU: FX-8350 • GPU: Asus Matrix R9 280x • RAM: 8GB of Crucial Ballistix Tactical Tracer (1866)• PSU: Thermaltake DPS Thoughpower 750 Watt • CPU Cooler: Thermaltake Frio Advanced • Keyboard: TT Sports Challanger Ultimate • Mouse: TT Sports Black Element • Case: Thermaltake GT Level 10


[/HR]