Anyone else out there using CF -> IDE or "SSD" in your physical Clear/CC servers?
I can't get enough of the stuff, as long as you take steps to minimize write wear (remote syslog etc) they're way more reliable than spinning discs. Since one generally doesn't need a lot of space for a Clear install you can pick up 2-8GB cards for cheap and the adapters for about a buck or two on ebay. There are also double sided adapters that scream "RAID me." I even popped one in my old laptop since 1.8" drives are a touch overpriced.
I can't get enough of the stuff, as long as you take steps to minimize write wear (remote syslog etc) they're way more reliable than spinning discs. Since one generally doesn't need a lot of space for a Clear install you can pick up 2-8GB cards for cheap and the adapters for about a buck or two on ebay. There are also double sided adapters that scream "RAID me." I even popped one in my old laptop since 1.8" drives are a touch overpriced.
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Tony Ellis wrote:
I personally would be wary of using raid with USB attached drives...
The raid mailing list has numerous reports of people having problems with a USB drive being intermittently dropped from their Raid array
:huh:
I run 4 x 1TB drives at home plugged into USB2.0 ports, using software RAID. It's been awesome so far. Due to grow the array soon. -
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I think trim was implemented in v2.6.33 of the kernel, and hdparm 9-20. So ClearOS won't have it. If you look at that link I posted, you will see that the Kingston drive was hardly affected by a 'full' drive. Trim made a bit of difference, but not much. Even when the drives are running in their 'degraded' mode, they are still faster than a rotating drive. -
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I really don't think you need to be worried about the lifetaime of a modern SSD drive. They last longer than a rotating hard disc. If you look at some of the lifetimes, they are way in excess of hard discs. The speed increases are well worth having. The top contenders seem to be Intel,Kingston and OCZ. Interesting review here
The next bit of money I spend on my laptop will be an SSD, and when I upgrade the ClearOS machnie we have here, it will have an SSD as a boot device too. -
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I use SuperTalent Masterdrive OX SSD drives. I have about 2 dozen of them running, mounted with noatime, with excellent results so far. They cost about $70, so the price is very reasonable. -
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If you're going to be running a lot of VMs I *highly* recommend using a high speed scsi array or fibre channel. The faster the drives the better, I usually only settle for 15K RPM when I expect a lot of VMs to be talking to the array at once. Remember that the write speed on these things is usually abysmal; though the expensive SATA-style SSDs are fast enough and reliable enough to replace hard drives in a RAID. -
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I'm in the process of building a new VM server/NAS (still early on ... deciding on both software and hardware still).
I'm quite possibly going the DOM, CF, or USB thumb drive route too (if not that ... a mirrored set of small slow 2.5" HDs).
Some motherboards conveniently have USB ports internally now ... right on the mainboard that you can boot from. Here is one I'm considering that has two USB ports right on the mainboard ... could raid 1 them! ...
http://www.newegg.com/Product/Product.aspx?Item=N82E16813182209 -
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