| rmg51 | Morning | 10:31 |
|---|---|---|
| JonathanD | Morning. | 10:59 |
| teddy-dbear | Morning peoples | 13:03 |
| JonathanD | Hi. | 13:16 |
| teddy-dbear | o/ | 13:41 |
| ChinnoDog | morning, peeps | 16:55 |
| InHisName | ChinnoDog: You like to nom on peeps ? | 17:28 |
| ChinnoDog | Sometimes. Especially when they are roasted over an open fire until the sugar carmelizes. | 17:52 |
| ChinnoDog | pleia2 eats them that way | 18:23 |
| InHisName | ChinnoDog: invite me next time you build a fire and have ample stock. | 18:32 |
| InHisName | Sounds yummy | 18:33 |
| pleia2 | only on special occasions | 19:01 |
| ChinnoDog | There should be more of those. We could have a peep roasting contest. | 19:05 |
| pleia2 | I don't actually like them :) | 19:15 |
| pleia2 | but on a freezing bethlehem night, it's an acceptable thing to do | 19:15 |
| ChinnoDog | They are good at negative degree temperatures. (I don't like them either.) | 19:20 |
| calvin_ | waltman: yeah, going to Ko's guys really was the solution! | 19:41 |
| calvin_ | major help | 19:41 |
| === calvin_ is now known as MidgetTurkey | ||
| MidgetTurkey | Anyone have advice for managing 124tb of data while maintaning backups and redundancy? | 19:43 |
| ChinnoDog | Midget? Must be wild. Domesticated turkeys can get up to 70lbs. | 19:43 |
| MidgetTurkey | heh | 19:43 |
| MutantTurkey | wait what... I'm already logged in a nother window | 19:43 |
| MutantTurkey | sigh | 19:43 |
| MutantTurkey | silly me | 19:44 |
| ChinnoDog | haha | 19:44 |
| MutantTurkey | question still stands | 19:46 |
| MutantTurkey | Anyone have advice for managing 124tb of data while maintaning backups and | 19:46 |
| MutantTurkey | redundancy? | 19:46 |
| MutantTurkey | whoops sorry | 19:46 |
| ChinnoDog | 124tb is a lot | 19:50 |
| JonathanD | MutantTurkey: I'd just print a copy out, personally. | 19:51 |
| JonathanD | just print it in hex, and you can type it back in if something goes wrong. | 19:51 |
| ChinnoDog | MutantTurkey: What type of uptime do you need to mantain? | 19:56 |
| MutantTurkey | heh | 20:06 |
| MutantTurkey | ChinnoDog: as up as possible | 20:06 |
| MutantTurkey | i need more like, equipment recommendations | 20:06 |
| MutantTurkey | what kind of server do i buy that has that ind of capacity | 20:06 |
| ChinnoDog | You are going to have to define these parameters before you can answer your question | 20:15 |
| ChinnoDog | For example, on my home computer I can tolerate a few days of downtime because of a disaster. If I lose my files no one is going to die or fortunes lost. | 20:15 |
| ChinnoDog | I only use RAID 0. I run external backups to a slow external USB drive and also to the internet. | 20:16 |
| ChinnoDog | If a drive dies I will restore from external USB. If the apartment burns down I will order a backup of my data from Crashplan. | 20:16 |
| ChinnoDog | My server will not stay up if a drive fails. In order to do that I would need more disks and have to spend more money and I would /still/ need an external backup plan | 20:18 |
| ChinnoDog | At 124tb the cost of the redundancy is cheaper depending on how resistant to failure you want to be. Theoretically you could build a 124tb volume using 42 3tb drives + 1 for RAID5 and be resistant to the failure of one disk | 20:20 |
| ChinnoDog | You can figure out how frequently you will be replacing disks using the MTBF ratings of the drives | 20:20 |
| ChinnoDog | You can also calculate the likelyhood of two drives failing at the same time | 20:20 |
| MutantTurkey | downtime, one day. | 20:29 |
| MutantTurkey | we have a raid6 array right now | 20:29 |
| MutantTurkey | I haven't seen it yet so I don't know what's there physically | 20:29 |
| ChinnoDog | That sounds suitable for that number of drives so long as you don't waste too many on parity. | 20:37 |
| MutantTurkey | yeah? | 20:42 |
| ChinnoDog | Using RAID 6 you are utilizing the capacity of all the drives minutes the 1+ drives for parity. You can scale the number of drives for parity based on your MTBF calculation. | 20:46 |
| ChinnoDog | s/minutes/minus/ | 20:46 |
| ChinnoDog | Why hasn't anyone written a RAID accelerator using OpenCL? is it just me or is that a natural application? Video chipsets with stream processors are creeping into server boards, might as well make use of them. | 20:50 |
| ChinnoDog | For that matter OpenCL would be perfect for file system compression too. | 20:52 |
| waltman | MutantTurkey: cool | 21:43 |
| waltman | so they actually knew about a library? | 21:43 |
| MutantTurkey | well no, but they are python pros | 21:59 |
| MutantTurkey | so we did it in python | 21:59 |
| MutantTurkey | turns out that function only has one implementation | 22:00 |
| MutantTurkey | the origional one | 22:00 |
| waltman | MutantTurkey: hah | 22:06 |
| MutantTurkey | setting up nagios now | 22:36 |
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