ozmillsy

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  1. Ok, thanks for clarifying guys. 1 other question. If I can create a new config with existing drives with data in tact, then calculate parity. Why cant I add a new reiserfs formatted drive (with data on it) to my array, delete my parity disk, and recalculate? (without reformatting, or losing my data on the hdd)
  2. OK, just so I understand you correctly, this is what I think you meant. 1) Running unRAID array: D1, D2, D3, D4, D5, D-Parity, D-Cache 2) Drive 3 fails: D1, D2, X, D4, D5, D-Parity, D-Cache 3) Cache disk kicks in, and starts rebuilding D3: D1, D2, X, D4, D5, D-Parity, D3(rebuilding) 3a) Remove failed drive, and race down to local pc shop. 4) Drive 1 fails, before D3 rebuild completes: X, D2, X, D4, D5, D-Useless, D3(partial) 4a) Curse !!!!! :'( 5) Action; Insert new replacement HDD. Remove now useless Parity drive from unRAID configuration. Configure new Parity drive (using new HDD or existing parity disk, doesnt matter), and calculate parity. 6) Assuming parity process completes without further failures, Outcome; data on D1 is lost in full, data on D3 is partially available(if lucky), D2, D4, D5 are in tact: X, D2, D-Parity, D4, D5, D-Unused, D3(partial) 6a) Get another HDD from the shop. 7) Insert 2nd replacement drive, which is effectively a new drive to the array, with no data on it. And reconfigure the Unused drive as a new cache drive: D-New, D2, D-Parity, D4, D5, D-Cache, D3(partial)
  3. I would like to understand what the process is, in that situation. It can happen (I've seen a thread on this forum, where it has) . With over 30tb of real data in the array (eventually), and the length of time it takes to replace a failed (3 or 4tb) disk, it's potentially a nightmare if I have to build a fresh new array and move data around.
  4. Hey VL, I have a hypothetical query for you around the above. I am building a 15 drive system, with a mix of 3tb and 4tb sata drives. I need a minimum of 39tb usable space, I'll probably end up with a bit more than that. And I am expecting to hold about 30tb of real data. If I build this system with unRAID. I understand that my redundancy will be 1 parity drive, and a hot spare (cache drive). If a drive fails, I expect that the rebuild time of a 3tb sata drive on this old system (legacy pci-x) could take well over 24 hours. You know what I am going to ask. Scenario is I lose a 2nd drive before the cache drive finishes rebuilding my redundancy. Questions; 1) At the point of 2nd drive failure, I expect the unRAID array is effectively down. But the data on the remaining drives is in tact, and I could access the data on another system? 2) What is the process to rebuild my array? Is there a way to rebuild it, without destroying the data on the remaining healthy disks? I ask this, because I'm worried about the formatting process of adding a drive to an array. I suspect that I may have to create a new unRAID array, with empty drives, and then copy data from old disks into new array. Is that right? With 25+tb of real data to copy into a new array, that could take a long long time.
  5. I'll be copying terabytes of data at a time, and I didnt want to do that between systems. I want to put the HDD in my server with data on it. It sounds like SNAP will let me copy the data off, before I incorporate the drive into the array. I'll play with it. Thanks for confirming. The silly LSI 300-8X I am using doesnt seem to let me boot into the system without configuring the HDDs connected to it. I *have* to go into the card setup, and configure the HDD. It's a pain. I look forward to getting something else.
  6. That's good feedback, cheers. Good to know that model supports the larger current drives. I saw a 24 port 1170 on Ebay, but it was $380. Alot more than I'd like to spend. A question on it though, which is probably relevant to the lower port count models like 1160. When configuring JBODs, can you take a drive with data on it, add it to your system, and configure it as a JBOD without the card writing to the HDD ? Might sound like a silly question, but some of the old raid controllers would configure a single HDD as it's own logical drive, which can sometimes mess with what is on the disk. Adding drives into the system with data on them, is a key thing I want to do. I'm new to unraid, havent played with it yet, and fear it doesnt let me do it seamlessly? ie: put the drive straight into the array and sync the data. But I could add a drive to the system, mount it, copy data on the array, and then incorporate the drive into the array. A bit of a time consuming pain, but could be done that way.
  7. I don't know if that matters does it, as long as the drives can be configured as JBODs. Appreciate it may be overkill. I just want a solution that works, without spending huge dollars. I will be trying the Supermicro that has been recommended. Yes, PCI-e , and this,,,,,,, That is likely to be a problem for me.
  8. Yeah, cool. Looks like it is a go-er ! Yes, it is dated. But I'm ok with that, for a low speed storage solution. If I can get the old 933T working with 4tb drives, I'll be very happy. http://www.areca.com.tw/products/pcix.htm
  9. Yeah, I dont need or want hardware RAID. Just a card that will allow me to connect 3tb/4tb sata drives. The 300-8X came with the 933T that I bought (off ebay). Thanks, I've sent a PM. I'm downunder. I see some of those cards readily available on Ebay. Either way, I think they are the shot. Hadnt picked one. I read somewhere that they supported 3tb drives after a firmware flash. But I posted here asking, as I wasnt sure what to get.
  10. Thanks, it wasnt clear if all the sata controllers on that list supported large drives. I assume the SataII ones do. Not many pcix cards on the list. 300-8X, it appears to have the latest firmware.
  11. Hi, I'm looking to build a NAS server with unRAID. I've purchased a 2nd hand Supermicro 933T server. It has a LSI Megaraid controller in it, but this controller doesnt recognise drives over 2tb. Can anyone recommend me a multiport SATA controller card, that will let me use the full capacity of 3tb and 4tb drives. Are the Areca's the go?