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Comments:
<0> crp: it won't increase performance
<0> if the partitions are on the raid5
<0> every toolbox needs one of these http://www.extremerestraints.com/the-drilldo-****ing-kit_694.html
<1> ok, thanks. then I won't do that :)
<2> eww linux software raid?
<3> linux's raid code is very stable and fast, actually.
<0> madsage: eww on yourself, it's actually a lot better than many hardware solutions out there
<2> i would atleast go freebsd venim if you need software raid
<2> not to be a fbsd poser
<4> freebsd needs to go the way of the dodo
<2> just from experiance, mine my differ than others however
<3> also, it's not venim. it's vinum
<0> linux raid works fine.. when the hardware does
<3> don't preach something you can't spell.
<2> yeah, thank you. i meant vinum
<0> I just lost a raid5 array because the controller ****ed up
<2> that sux
<3> anyway, i have a machine here with a 3ware controller and 8 100GB drives. running software raid5 with the 3ware set up as 'JBOD' actually works faster than just using the hardware raid5 on the 3ware controller
<0> ...?
<0> jbod makes one device out of several
<0> how can you run raid5 on top of that?
<3> no, jbod is "just a bunch of disks"
<3> as in, no raid, no splicing... just connecting directly to the disks themselves.
<0> yes, but to the OS they are seen as one
<3> nope.
<3> they are seen as just a BUNCH OF DISKS
<3> 8 scsi devices connected via the one controller.
<3> the 3ware, in jbod mode, just acts like a scsi bridge to the ide drives. each drive gets its own scsi id to the host
<0> http://www.pcguide.com/ref/hdd/perf/raid/levels/jbod.htm
<0> sounds like the 3ware intelligent controller is being byp***ed, because that sure isn't JBOD
<3> sorryif you either seem confused by their article, or if their article is inaccurate.
<3> no, it's not being byp***ed. if it were, these _IDE_ disks wouldn't be appearing to the host as _scsi_ disks connected via the 3ware controller.
<0> another word for it is spanning
<3> yes. spanning is what YOU are thinking of, but jbod is not spanning.
<0> if you buy a hardware controller and it says JBOD on it, they mean spanning
<3> jbod is when you have a bunch of disks connected to a raid or scsi controller, where NO spanning, NO splicing, and NO raid is done. it's essentially using the raid controller only for buffering/caching.
<3> funklord, 3ware controllers don't support spanning.
<0> you may interpret it that way, but it's not the common term used with vendors
<3> how long have you been building raid storage systems?
<3> and which vendors have you bought from, and for how long?
<3> http://www.accs.com/p_and_p/RAID/BasicRAID.html
<0> http://en.wikipedia.org/wiki/JBOD#Concatenation_.28JBOD.29
<3> go read the first two paragraphs.
<3> JBOD
<3> JBOD is NOT RAID. JBOD stands for 'Just a Bunch Of Disks'. This accurately describes the underlying physical structure that all RAID structures rely upon. When a hardware RAID controller is used, it normally defaults to JBOD configuration for attached disks.
<3> Some disk controller manufacturers incorrectly use the term JBOD to refer to a Concatenated array.
<3> Concatenated array
<3> A Concatenated array is NOT RAID, although it is an array. It is a group of disks connected together, end-to-end, for the purpose of creating a larger logical disk.
<3> (concatenation is also known as spanning)
<0> yes, but it's becoming the common term nowadays
<0> even wikipedia writes it that way
<2> lets not have a pissing contest, we were discussing linux software raid, while felix, you disagreed.. but I didnt elaborate that my experiances included disk appending while you are using JBOD inplace of.. maybe why your opinion differs from mine.
<2> linux disk appending i've found is very unstable
<0> I understand why it would be stupid to call it that way
<0> I even think raid0 should only be called striping, never raid
<2> while vimum does that very well
<0> but that's just the way it is ;P
<4> madsage: how many names does this "v" thing have?
<3> madsage: why would you use appending? (aka spanning, concatenation, etc)
<1> madsage: I use linux software raid on 4x 250gb sata300 wdc harddrives.. works great. It's been up for over a year now, not one incident.
<3> madsage: venim? vimum? IT'S VINUM
<2> crp, and how much load does it actualy see, writes per second?
<2> vinum, whatever.. you know what i meant, no matter how poorly or my inability to spell it. heh
<2> i've tried it many times, blaming hardware, drives and controllers and always same result, trashed data. but that is only my experiance for what its worth.
<3> anyway, if there were stability problems in the linux raid code, it would still be marked as experimental. THOUSANDS of people use it successfully every day, in all sorts of environments. in your case, you might have had other problems that might have manifested in or affected your higher-level filesystems
<5> HI
<3> "experience" has no 'a'
<3> nous: how's the eye in the sky?
<5> it's looking at you. it can read your mind.
<3> woo!
<5> it can see you will die by tripping.
<3> I'M THINKING....
<3> BOOBIES!
<2> hey good song by alan parsons
<5> also a really good in-joke.
<2> ****, The Alan Parsons Project, before felix jumps me on this too
<3> heh
<2> you missed that one felix
<2> heh, i'm just givin you a hard time. =]
<3> dongs.
<2> felix, i must admit, i gave up on linux software raids some time ago, surely and hopely it has improved by now, becuase it used to be ****.
<2> i've used a lot of veritas as well, I cant say its any better than my last experiances with standard linux software raid either. especialy for a commercial product. we are constantly recovering trashed volumes at American Express with it.
<2> these are clustered nodes with upto 24 boxes in a hub.
<2> to give you an idea the work they are required to do
<0> ok raid experts.. someone wanna help me repair my raid5 array?
<2> you said the controller took a ****? i'd suggest replacing the controller first
<0> no, it just went nuts.. ata controllers tend to do that
<0> I tried rewriting the superblocks in order mark one of the failed drives as clean
<0> but that gave me an io error when reading
<0> md2 : inactive sdj1[5] sdi1[4] sdh1[3] sdf1[1] sde1[0] 1220979200 blocks
<0> sde-sdj are part of the array, in order, sde and sdg were marked faulty
<0> 6x250G drives all in all
<2> Funklord, have you googled how to recover from raid issues?
<2> software raid errors
<2> there is lots of info and howto's out there
<2> but i hope you had a backup of the critical stuff
<6> funkmaster
<2> google 'linux software raid recovery'
<2> tons of stuff
<2> seems everybody is having to do it
<2> heh
<2> i know its not funny, sorry
<6> you're mad
<0> yeah I've seen most of the stuff
<0> just the annoying thing about 3 different generations of userland utils with different syntax
<7> if a drive fails in the chain how do you keep sde from becoming sdd?
<0> they're each hooked to separate host
<0> sata<->scsi subsystem
<0> and it's not like they aren't accessible, just gave a couple of errors and were kicked out
<0> this might be a bug in linux raid
<0> the raid code shouldn't expect all data to be correct when talking to ata drives
<0> not in the real world anyways
<0> there was a discussion about this on lkml
<0> so, no advice huh? ...just as I thought
<8> driving a car to meet people who want to buy it, then getting rear ended on the way = good luck omen
<9> :S
<10> Who wants free ram?
<5> did fizban go into hiding or something?
<11> Hey, does slackware not have a (default)package for chm files
<11> or more like why does it not
<11> if you grep the PACKAGES.TXT for "chm" all you get is fetchmail
<12> hehe i need some help
<13> did you check the package browser?
<12> i just got DSL
<13> or linuxpackages?
<12> and i dont know what to do with it!!! :D what else should i download, 10gigs is NOTHING
<13> empornium.us
<12> worksafe?
<13> ...
<13> what do YOU think?
<12> i dunno
<12> wtf is an empornium
<12> WHOA ok
<12> - porn
<11> mpornium.us
<11> woops
<2> **** they are taking signups
<2> i just got an empornium account
<2> been trying off and on for like 6 months
<14> Hello =D
<14> can anyone help me with an issue with alsa/sound while compileing a 2.6.17.1 kernel on slackware ?
<12> ? whats the issue
<14> hey i tried a default install of slackware to get my soundcard working (sound blaster audigy platinum) but it didnt work so i tried compiling 2.6.17.1 i used the config that came with the default install and added soundcore as module and alsa as module and left out oss
<14> now when i boot i get a crazy amount of warnings on alsa and sound still doesnt work
<14> i have never got the sound blaster audigy platinum to work ...ever..slackware is pretty much the only distro i ever used too
<14> 0.o
<14> guess not...
<15> im not too sure sir
<15> i use an old school sound card since its well supported
<16> um
<16> there's a soundblaster driver in the kernel
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