October 21, 200817 yr How loud is the norco case? I've been thinking of getting one.. but I'm on the fence cuz I do not have a rack. I have a CM Stacker and if I remove the top power unit, I think I could fit 4 5in3 removables yielding almost the same capacity.
October 21, 200817 yr Author Think quite proper server or noisy PC is probably the way to best describe it. Looks the business though
October 21, 200817 yr The noise is a tough choice for me, my CM590 setup is so very quiet... Well quiet compared to my xeon setup with an ailing fan LO!!!
October 21, 200817 yr Author yeah i had a couple of Dell servers that sounded like jet engines. Luckily i had a nice client with ridiculous internet bandwidth and a huge server ronn that gave me half a cabinet so they were relegated there. I also have an apple acoustically shielded half height cabinet getting fitted next week so we will see how that helps. If noise is an issue they WILL bug you... but the dancing blue leds and cool look might ofset that. They might be cheap to buy but they are anyting from cheap construction and looks wise.
October 21, 200817 yr If noise is an issue they WILL bug you... I sit next to 4 servers.. so eventually the noise would bother me. Perhaps that is why I build allot of ITX Mobile processor machines ;-) One of my larger music/radiostation servers sits on a shelf right above my right ear, so when the fans kick in or go, it can get on my nerves. I'm usually pretty good with airflow design so they do not kick in that often (considering it's a dual LV Xeon on a NCCH-DL mobo). The CPU fans are capable of 70cfm each, but with the Silverstone FM83's in the case, it keeps them down until the high heat of the summer http://www.newegg.com/Product/Product.aspx?Item=N82E16835220023 What I like about the silverstones is they can fit in an 80MM opening, but have 90MM fan blades. Not sure of you can fit two in the back of the norco. I was thinking of re-rigging the norco fans in the front with a few of these. Perhaps putting certain ones on the inside of the bar, and others onthe outside. This is the other case fan model I use. (also for the XEON CPU's ontop of a Swiftech Heatsink http://www.newegg.com/Product/Product.aspx?Item=N82E16835999111 I would like to find a fan controller that fits on the PCI bracket, but has more then one control knob.
November 25, 200817 yr I couldn't help but notice this topic and that there had been no "official" reply. Currently my company uses a lime box with 16 drives for a backup solution. For now it works great, but at some point in the future, having twenty, or twenty five drives available would be nice. Any ideas on if this is going to happen?
November 25, 200817 yr To answer my own question - I found this posed by limetech here - http://lime-technology.com/forum/index.php?topic=2634.0 Related to this, something we're constantly asked is, "can you increase the number of disks in the array to X?" Many have asked for an X of 20, some 24. What we are going to do is create a Pro-only feature that raises the array width max up to 32, but also includes the ability to configure a "Q-parity" drive (like RAID-6). This drive will have similar size restriction as Parity drive, that is, just be larger or same size as any data disk. In this system (as in a RAID-6 system), there will be two redundancy disks, "P" which is the ordinary XOR parity, and "Q" which is a Reed-Solomon code. This will allow unRAID to recover from any 2 disk errors, with minimal performance impact. I think this is a great idea.
November 25, 200817 yr I think this is a great idea. I too think this is a great idea. BUT!!! The more I think about it, there are some serious ramifications here. Data integrity is at stake, so testing is going to be long, may already be holding things back. It is not just normal writes that have to be handled, but parity upgrades to larger disks, the swap-disable procedure, and drive rebuilds. All need extensive testing, and could risk data. Then there's a potentially large performance penalty. Currently, a parity write has turned each I/O into 4 I/O's, but will now probably turn it into 6 I/O's. I suspect this may also have impacted Tom's release planning. Then there is also the move to the Linux kernel v2.6.27? It probably needs a separate beta, just for that single change.
November 25, 200817 yr Yeah, I am certainly not in favor of rushing anything. But it is a good idea to know it's in the works for hardware planning.
November 25, 200817 yr Yeah, I am certainly not in favor of rushing anything. But it is a good idea to know it's in the works for hardware planning. I'm more in favor of having multiple protected "arrays", each with a subset of the physical disks, and each with its own parity drive on the same server. Tom mentioned this as a possibility long ago in the laundry list of things to do some day. Joe L.
November 25, 200817 yr This is probably a stupid question, but would multiple arrays on the same machine be able to function as one folder\drive in a similar way that multiple drives can be combined into one drive?
November 25, 200817 yr This is probably a stupid question, but would multiple arrays on the same machine be able to function as one folder\drive in a similar way that multiple drives can be combined into one drive? I would guess yes... as it has nothing to do with the array at all, just the mount points it presents as a consolidated view.
December 4, 200817 yr I would wager at that point that with current gen drives at the sizes they are, the chances of multiple failures increase dramatically. I would say it is even unreasonable to rely on only one parity drive for 15 other drives, but that seems to be a level that people are comfortable with. My suggestion would be to examine raid-6 functionality which can apparently be expanded as well - I saw a few Ubuntu forums posts about it before deciding on unraid for my decidedly smaller array.
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