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9

You need a SAS expander and/or a server with a disk backplane that has an embedded expander... Please see: RAID card w/1x mini-SAS connector : how do I physically connect 16 disks? and How exactly does a SAS SFF-8087 breakout cable work? + RAID/connection questions


8

It's a hard disk with a FC interface. Nope, you probably can't just arbitrarily replace one of them with a disk with a different interface, and different IO characteristics, especially in a storage array. But ask your vendor to be certain, or consult their documentation! And, spend 30 seconds on Google, too.


6

You can't use non-HP SSDs in HP ProLiant servers like this. Just because this worked on your G7 server doesn't mean it is okay for your Gen8 ProLiant servers. (basically, why buy enterprise gear, then cripple it with incompatible components?) Please see: 3rd party SSD drives in HP Proliant server - monitoring drive health or Third-party SSD solutions ...


4

Whether there's read or write activity, the drives are still online and spinning! Edit: This may just be a function of using the Dynamic Smart Array driver (hpvsa module). HP explains the drive functions here. Please also see HP's video detailing their SmartDrive disk carrier.


3

There are probably some options for you, but nothing that's HP-supported (short of adding something like an HP D2600 JBOD enclosure) I'd suggest just buying a NAS or NAS enclosure to house your disks. You could try something that's USB-connected, but the range of devices and controllers supported by ESXi is small. A NAS is going to be safer, considering ...


3

I'd use SAS in just about every case, unless this is a home system that won't be running production workloads. It's less about speed and more about error correction, the protocol and reliability of the entire system.


2

I am having exactly this problem now, running Fedora 21. I have four of the Seagate 8TB drives (ST8000AS0002-1NA17Z, AR13). The array was built while running a 3.18 kernel and besides the performance not being the greatest, everything was working fine (and I torture tested the drives with a mix of both streaming and random writes for four solid days while ...


2

We tried lots of different things, from reseating all the HD, to making sure all connections were solid on the board, to power cycling, to configuration changes, etc.... As the last option, we pulled the two data drives and booted just with the OS drive. I allowed the RAID controller to think the two data drives had failed. The server booted up and applied ...


2

Sure, this is an easy process... Once the rebuild is done, you can either use the "Unused Space" to create another Logical Drive (e.g. Logical Drive 3), or you can Extend Logical Drive 2 to utilize the extra space. Once this is done, you'll see a larger block device available to your operating system. If this is Windows, the free space will be ...


1

With regard to non-HP SSDs in ProLiant servers, nope... nope... nope... nope... Anyway, this is an HP ProLiant server, so it has an onboard Smart Array RAID controller. In order to use the disks connected to that controller, you have to create a "logical drive". (here's a guide) Please tap F8 to enter the HP Smart Array BIOS utility when prompted or use ...


1

In some cases hot-swap may need to be enabled on the BIOS of either the motherboard and/or the SATA controller. This completely depends on the make and model of both, but if you have on-board SATA controllers that should support hotswap then it's worth combing through the motherboard BIOS. SATA cards may or may not have their own BIOS settings, many ...


1

I see the same type of problem with my SuperMicro X7DCA-L with the latest BIOS (R1.2a), though I don't even have to change anything for it to happen. The machine just randomly decides to move things out of the excluded list and/or change the boot order. Sometimes I can reboot several times in a row before it happens, but it happens regularly. I'm assuming ...


1

I have no experience with the drive in mention but it is quite possible it's a faulty drive. A good test is remove all data that you can off of the drive and test it in a completely separate system to check performance and if issues persist than warranty it to the manufacture, if the replacement drive you receive has the same symptoms it's possible there is ...


1

During part of my carrier I worked for a large corporation and we worked with Seagate directly on many occasions... ...Seagate has a vested interest in resolving this. Posting here is BAD publicity for them. You can be SURE to get their full and undivided attention, AND, likely, help enough you can post something back here for us about the experience. I ...


1

It is not mdadm, mdadm only controls the kernel-based software raid functionality. You don't need to reboot to reassemble an array. (Maybe only if it is your root partition.) Putting the corresponding kernel messages (you can get them with a dmesg command) would help a lot, although I can say nearly surely, what is the cause of your problem. And it is ...


1

I tried all of the above tips. Even switching cables (power, SATA) didn't change the symptoms. The two disks connected to the add-on SATA controller kept being lost from the mdadm array, so I tried yet another SATA controller. No luck. I ended up rearranging the whole machine so I could live without the add-on SATA controller. The mdadm array has been stable ...



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