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Adaptec 29160 raid compatible?

Hello, this is very straightforward, but I have not found the answer from someone who KNOWS this for a fact.
Our company aquired a Micronet PR1000SC RAID array unit. It's configured for RAID 5. I had an Adaptec 29160 SCSI
card that I thought would work but when I installed the array on our 2000 server it could see the array but when I tried
to format the new volume it would go to 99% and then say format failed. I then converted the array to dynamic volume
(from simple volume) it was able to format it but none of the 800gig of space is accessible. Is the 29160 the problem
or am I missing something here? FYI...in device manager the card is properly installed and the PRS1000SC shows
up as a single 800 gig drive. Any ideas? 500 points are for urgency!
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IT-dude59
Asked:
IT-dude59
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1 Solution
 
Lee W, MVPTechnology and Business Process AdvisorCommented:
The 29160 is a SCSI card, NOT a SCSI RAID card.  You cannot do hardware RAID with that card.

YOU CAN do SOFTWARE RAID with that card.  So if you've setup RAID 5 in software over the disks, then the card should be fine.
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IT-dude59Author Commented:
Thanks leew, this Micronet unit is new to me but all the configuration is done internally to the box so I'm assuming this
qualifies as a hardware RAID? Does it make sense that I would be able to see the drive but have no access to write to it?
(Just looking for a little more insight)
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Lee W, MVPTechnology and Business Process AdvisorCommented:
If the box doesn't have it's own RAID controller (can't say I've ever seen one that does), then it's just a disk array.  A plain, dumb disk array.  There may be some added electronics for clustering purposes, but for the most part it's a dumb box.  The drives are seen individually, the only thing making them RAID is the hardware (if connected to a RAID controller) or the software if you use software RAID.  I've worked with some generic SCSI storage boxes and well several Models of Dell boxes.  They are little more than an enclosure to hold and power the disks.
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andyalderSaggar makers bottom knockerCommented:
leew, The MicroNet Platinum RAID Features an advanced RISC processor capable of performing RAID Levels 0, 1, 3, 5, 0+1 and JBOD. So now you have heard of one that has its own RAID controller even if you haven't seen it, it's not just a dumb box.  ;)
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IT-dude59Author Commented:
andyalder, are you saying the 29160 should work with the Platinum raid?
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andyalderSaggar makers bottom knockerCommented:
Yes. Since the Platinum RAID has its own RAID controller all the Adaptec sees is one big disk. I'm not sure why it is failing at 99%, I would use the web UI to delete and then recreate the virtual drive it presents to the controller and to windows. Haven't used the web UI for that particular box but I assume you can create one big RAID 5 array and then partition it into two 400GB slices and configure individual LUNs or SCSI IDs for them, that shouldn't be necessary unless the virtual disk it presents is greater than 2TB but it certainly wouldn't hurt.

Perhaps you have a termination problem on the SCSI bus, although both it and the Adaptec card are Ultra 160 it wouldn't hurt to set both down to 80MB/s to experiment.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
Andy,

Didn't say it didn't exist  :-)  

IT-Dude,

Reading the specs of the device, (but never having worked with one), I would say YES, the 29160 should be compatible.  Note:  The 29160 is NOT a RAID controller.  BUT, the box will presumably have a SINGLE SCSI ID and connection (maybe a second for passthrough/termination - downloading the manual now).  The RAID controller is hardware based and built into the box.  I hope I'm making this clear... the MicroNet device is, I suspect, reporting itself as a SINGLE SCSI hard drive to the RAID Controller, because the box itself has configured the RAID array.  
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IT-dude59Author Commented:
Yes, the OS sees it as one 800gig drive. I got it to format after I converted from basic disk to dynamic. Disk manager shows the drive and states
it's healthy but I still cant access it and it doesn't show up in Explorer. I swapped out the cable and this is the second card so I don't think
it's the problem. I guess I'm just going to have delete the array and re-create it, but there's no reason think that's going to change anything.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
Does Disk Management say it has a drive letter assigned?

Have you rebooted the computer?
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IT-dude59Author Commented:
Yes,  it doesl, but since I thought I had the problem solved, I extended my original dynamic drive (680 gig/ E:) to include this. I should have about over a T-byte
of storage by now, but since it doesn't work all I'm seeing is 2 volumes with assigned letter E:  680+800=680! Once I extended my original volume I cannot
just remove the problem disk without wiping out all the data. I would go out and get a raid controller if I knew for sure that, that was the solution but I can't
afford to do that and end up in the same situation.
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