ThatGraemeGuy | morning all | 06:09 |
---|---|---|
nuvolari | o/ oh hi | 06:11 |
Theblazehen | hi guys | 06:34 |
Theblazehen | anyone else hit with no power? | 06:34 |
Theblazehen | hey Kilos | 06:39 |
Kilos | hi Theblazehen | 06:41 |
Kilos | hit ThatGraemeGuy inetpro and others too | 06:41 |
Kilos | s/hit/hi | 06:41 |
Kilos | hi JabberwockyA19 | 07:20 |
inetpro | good mornings | 07:26 |
inetpro | oh and hi Kilos | 07:26 |
Kilos | howdy inetpro | 07:27 |
ThatGraemeGuy | ow why you hit me?! | 07:27 |
Kilos | when | 07:27 |
Kilos | im not even there | 07:27 |
ThatGraemeGuy | <Kilos> hit ThatGraemeGuy inetpro and others too | 07:27 |
ThatGraemeGuy | :-p | 07:27 |
Kilos | lol hi man note s/hiy/hi | 07:28 |
Kilos | wbb sheep time | 07:28 |
charl | good morning | 07:36 |
charl | Maaz: coffee on | 07:36 |
* Maaz flips the salt-timer | 07:36 | |
Maaz | Coffee's ready for charl! | 07:40 |
Kilos | hi charl | 07:42 |
charl | Maaz: thanks | 07:42 |
Maaz | charl: Okay :-) | 07:42 |
charl | hi Kilos | 07:42 |
charl | ok i'm asking an operator on freenode to nickserv drop this nickname now | 07:43 |
charl | 09:37 -NickServ(NickServ@services.)- Registered : Aug 29 12:38:26 2012 (1 year, 43 weeks, 5 days, 18:58:59 ago) | 07:43 |
Kilos | why? | 07:43 |
charl | then i can register it | 07:43 |
Kilos | ah | 07:43 |
Kilos | you mean someone else had it | 07:44 |
charl | some *sshole that registered it and never even used it | 07:44 |
charl | 09:37 -NickServ(NickServ@services.)- Last seen : Aug 29 13:02:30 2012 (1 year, 43 weeks, 5 days, 18:34:55 ago) | 07:44 |
Kilos | ya do that | 07:44 |
Kilos | like when i started within a week my name was stolen and registered | 07:45 |
JabberwockyA19 | morning everyone o/ | 07:45 |
charl | hi JabberwockyA19 | 07:45 |
Kilos | thats when i swopped to kilos and registered | 07:45 |
charl | hi Vince-0 | 07:47 |
Kilos | hi Vince-0 | 07:47 |
Vince-0 | haai mense | 07:48 |
charl | bbl | 08:10 |
=== SubOracle[away] is now known as SubOracle | ||
charl | i has it :) | 08:25 |
Kilos | good no more dragging tail | 08:28 |
charl | lol | 08:29 |
charl | i get no more tail now ? | 08:29 |
charl | oh well i had enough tail already | 08:29 |
Kilos | haha only if you disconnect and reconnect quickly | 08:31 |
charl | nah i take it slow | 08:37 |
mazal | Hi everyone | 12:15 |
ThatGraemeGuy | 'lo mazal | 12:16 |
mazal | Is it possible , with Ubuntu to create a LVM of two drives after install , and the two drives is not part of the OS | 12:16 |
Kilos | hi mazal | 12:16 |
ThatGraemeGuy | um | 12:18 |
ThatGraemeGuy | i think so, but you need to describe in more detail | 12:18 |
ThatGraemeGuy | paste output of 'sudo fdisk -l /dev/sd?' to http://slexy.org/ | 12:19 |
ThatGraemeGuy | and also 'mount | 12:19 |
ThatGraemeGuy | and also 'mount', 'pvs' & 'lvs' | 12:19 |
mazal | Here is my scenario , currently my Ubuntu runs on an external HDD. 14.04 | 12:19 |
ThatGraemeGuy | ok | 12:19 |
mazal | Backups runs to another external | 12:19 |
ThatGraemeGuy | ok | 12:20 |
mazal | However , my data ( that get's backed up ) has become too much for the 2TB backup drive. | 12:20 |
ThatGraemeGuy | right | 12:20 |
mazal | Now I am thinking of putting in 2x2TB internals and make one volume of them | 12:20 |
ThatGraemeGuy | ok | 12:20 |
mazal | But without re-installing my OS or installing my OS on the internals | 12:21 |
mazal | This possible ? | 12:21 |
ThatGraemeGuy | so they will just be storage, not hosting any O/S filesystems? | 12:21 |
mazal | Correct. OS must stay on external as I use it at home and at work. OS must stay mobile | 12:21 |
ThatGraemeGuy | cool | 12:21 |
ThatGraemeGuy | yeah you can do that | 12:21 |
mazal | I know zero of LVM so don't even know where to start | 12:22 |
ThatGraemeGuy | but you realise in that scenario, if 1 disk fails, your entire LVM is irrecoverable | 12:22 |
mazal | I just know LVM can make 1 big volume of multiple drives | 12:22 |
ThatGraemeGuy | i assume you're ok with that since its for backup space | 12:22 |
mazal | Yeah that part bothers me a bit , maybe I must just keep two drives seperate and seperate the backups between them | 12:22 |
mazal | 2 Seperate shares and just manage what goes where | 12:23 |
ThatGraemeGuy | or get a third disk and make a RAID5 volume | 12:23 |
mazal | I know even less of RAID lol | 12:24 |
ThatGraemeGuy | but yeah, without RAID, LVM just adds space together, and if a part of it dies the whole volume dies | 12:24 |
mazal | Don't one need expensive raid cards for that ? | 12:24 |
ThatGraemeGuy | nope, linux software raid is perfectly feasible on modern hardware | 12:24 |
mazal | Does RAID 5 add space together ? | 12:25 |
ThatGraemeGuy | RAID5 requires at least 3 disks | 12:25 |
ThatGraemeGuy | but you only get the usable space of 2 | 12:25 |
ThatGraemeGuy | what happens is that every piece of data written is written in such a way that 1 missing piece can be re-constructed from the 2 non-missing pieces | 12:26 |
ThatGraemeGuy | (assuming a 3-disk array) | 12:26 |
ThatGraemeGuy | so in a RAID5 array with 3 disks, 1 entire disk can be lost and the data can still be read | 12:26 |
mazal | So 3x TB disks gives 4tb usable space ? | 12:27 |
mazal | 3x 2TB | 12:27 |
ThatGraemeGuy | correct | 12:27 |
mazal | Hmm | 12:27 |
ThatGraemeGuy | for RAID5, your usable capacity is (n-1) x size of disk | 12:27 |
ThatGraemeGuy | where n is the number of disks | 12:27 |
ThatGraemeGuy | for RAID6 you can lose 2 whole disks so your usable capacity is (n-2) x size of disk | 12:28 |
mazal | I will think a bit what the best option will be | 12:28 |
mazal | All the data will be backups , not live data | 12:28 |
ThatGraemeGuy | so a RAID6 with 5x 2TB disks gives you 3x 2TB of capacity, and up to 2 disks can fail completely and your data is still accessible | 12:28 |
ThatGraemeGuy | if it were me and its for backup only I'd just go with RAID0 or LVM | 12:29 |
ThatGraemeGuy | actually if it were me i'd make it way more complicated probably ;-) | 12:29 |
mazal | What's RAID0 ? | 12:30 |
ThatGraemeGuy | i'd probably split each disk and have a RAID1 for crazy important data and a RAID0 for other stuff | 12:30 |
ThatGraemeGuy | RAID0 is a "stripe", where your data is split and each disk gets a piece | 12:30 |
ThatGraemeGuy | so if you lose a disk you lose all the pieces on that disk and the data as a whole is also toast | 12:31 |
ThatGraemeGuy | similar to LVM, except LVM is more flexible as you can add any old size to an LVM but RAID0 pieces must be of equal size | 12:31 |
mazal | So RAID0 will give 4TB as 1 volume , but everything gone if 1 drive fails ? | 12:31 |
ThatGraemeGuy | yup | 12:31 |
mazal | In a 2x 2TB setup | 12:32 |
mazal | So RAID0 is same as LVM basically ? | 12:32 |
ThatGraemeGuy | almost, the members of a RAID0 must be the same size, but you can add any old bit of disk to LVM | 12:34 |
ThatGraemeGuy | but in terms of "lost 1 piece, lose the whole pie", yes the same | 12:34 |
mazal | Ok thanx Greame , will go think about all the options and decide what would be best | 12:34 |
ThatGraemeGuy | good luck :-) | 12:35 |
mazal | Bye everyone | 12:55 |
=== SubOracle is now known as SubOracle[away] | ||
Kilos | sorry, swopping modems | 15:31 |
Kilos | grrrr i forgot the e220 times out | 17:37 |
Kilos | ohi my superfly | 17:37 |
Kilos | hows you and the family | 17:38 |
Kilos | oi oi oi | 17:56 |
superfly | Maaz: Tell Kilos Hi, we're all fine. How are you? | 18:21 |
Maaz | superfly: Got it, I'll tell Kilos on freenode | 18:21 |
Kilos | ah superfly sorry . i got something wrong here with modems disconnecting all the time | 18:27 |
Kilos | apart from cold im good too ty | 18:27 |
superfly | no problem | 18:27 |
superfly | I'm not here all the time | 18:27 |
Kilos | ya i n oticed | 18:28 |
Kilos | took my new dlink to xp for a while and since them it seems to timeout like the e220 does | 18:28 |
Kilos | grrrr | 18:28 |
charl | wb Kilos | 18:37 |
charl | hi superfly | 18:37 |
Kilos | ty charl | 18:37 |
Kilos | running mtr to see if timeouts will stop | 18:38 |
Kilos | night all. sleep tight | 19:49 |
=== SubOracle[away] is now known as SubOracle | ||
=== SubOracle is now known as SubOracle[away] |
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