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The on-disk RAID format of HP Smart Array controllers and disk sets are the same between the P410 and P420 controller. The bigger questions are: What server model and generation are you using? Is this related to your question from 2014? The P410 controller is linked to G6 and G7 ProLiant servers, while the Gen8 servers use the P420 controller. Why do you ...


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From the P420 QuickSpecs: Data Compatibility among most current shipping Smart Array controllers allows simple and easy upgrades any time needs for higher performance, capacity, and availability increase. Even successive generations of Smart Array controllers understand the data format of other Smart Array Controllers. So it would appear that ...


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It turned out that Disk 0 wasn't getting enumerated. I moved the replacement drive from Slot 0 to slot 3 and it finally recognized the new drive.


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3Ware controllers are nice - no doubt about that. But as noted above, RAID 5 with many disks is a real problem. If the disks are completely dead and gone, I would say you have no way of recovering, short of using a data recovery tool like this: https://www.runtime.org/raid.htm I have tried recovering data for customers (long time ago) and it is at best ...


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Did they fail on the exact same time ? What do you mean by "disks died" ? Are they mechanically termianted or only have some corruption on them ? Anyway, you have a double disk failure on RAID 5. This means your data is gone. The array cannot be rebuilt. At that many disks it was logical to have a RAID6 so it would protect against 2 disk failures in the ...


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Ensure the drive is clear and not initialised (GPT/MBR etc) otherwise the raid card can interpret this as a 'foreign' HDD and not automatically import it to avoid destroying any data on it that you may want to use to recreate a foreign raid array. Another thing I found on older Dells is adding the drive while the server is powered down doesn't always ...


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There are three types of H700 cards. Dell PERC H7000 Integrated Card This looks almost exactly like the adapter card, key difference is the PCIe backing plate seen in 2nd image below. Dell PERC H700 Adapter Card Dell PERC H7000 Modular Card I couldn't find a good pic for one of these. They only existed for a short time until Dell went to ...


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Chances are that you have HW RAID enabled in mode 0 or 1 and the controller is presenting one unified disk to FreeBSD. You either have to configure your controller for JBOD or if that's not supported then set up a RAID 0 array for each disk in your system.


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Impossible to say what happened during your install without more info which at this point is probably not available. In theory, even if your HW RAID was enabled and therefore the OS only saw 1 physical disk, you should still be able to put ZFS on that, though it would be a bad idea. It's always better to disable the hardware RAID when using ZFS. You should ...


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I prefer software RAID to hardware RAID on single servers, because hardware RAID forces the admin to take precautions against hardware failure of the RAID controller. This usually requires stocking and regularly testing spare RAID controllers. In your setup, though, I assume, that redundancy is on the node level, not on the disk level. If a node fails for ...


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LSI claim that their approach to RAID 10 differs from the standard definition because they follow the SNIA specification. With MegaRAID RAID 1 can consist of from two drives (the more traditional definition) to up to sixteen drives. MegaRAID RAID 1 must be an even number of drives. With MegaRAID 1, if more than two drives are in the Virtual Drive ...


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A MegaRAID RAID 10 is a RAID 10 as everywhere else: A RAID 0 (span) on top of RAID 1 arrays. The problem in your case is that MegaRAID will only allow you to span 8 RAID 1 arrays, whereas the RAID 1 arrays have to consist of 2 harddisks each. Therefore you will only be able to use 16 disks in your RAID 10.


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Depending on the RAID controller installed in the server (I'm assuming Smart Array), you can carve an array (a group of physical disks) into multiple logical drives (virtual disks with a RAID level setting). Using the HP Smart Storage Administrator tool, create an array comprised of the 4TB disk(s), then a logical drive that's an appropriate size for your ...


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That's not an HP issue, it's a 32 bit integer issue, which makes a 2TB drive the largest drive supported when using 512 byte sectors. To use the full capacity of the drive, you'll want to format it as a GPT drive... and probably not want to use it as your system partition, but if you do decide to use a 4 TB disk as your system partition anyway, you need to ...


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If the software list nothing, then your last option is to enter the lsi utility at boot time. I dont warrant that it will show the %, as the software list nothing


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That equipment is just too old to use safely... The Smart Array 431 RAID controller is pre-HPSA and pre-CCISS, dating back to the old CPQARRAY driver. So you're trying to use ancient 1999-era hardware with a 2014 operating system. I don't think that's reasonable. The cpqarray driver was removed from the Linux kernel config options in version 3.13 - ...



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