Re: Hardware IDE ATA Raid 1 support in Linux Debian - Linux disapointment
On Sunday 16 February 2003 13:37, Alvin Oga wrote: > > -- > > Got Backup? > > was it tested, and does it work I guess I'll use 'fortune -s' as sig again. I'm getting too many answers to this one! :-) -- Got Backup? -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Hardware IDE ATA Raid 1 support in Linux Debian - Linux disapointment
On Sun, 16 Feb 2003, Nicos Gollan wrote: > On Sunday 16 February 2003 08:35, Alvin Oga wrote: > > == my raid test ... > > > > - unplug /dev/hda ... and try to boot ( into degraded mode ) > > - unplug /dev/hdc ... and try to boot > > > > - it should still boot w/o any intervention/typing > > > > - copy a 2TB file to the raid disks ... unplug the disk to > > simulate a crash ... > > But do this with the computer swtched off, at least with IDE drives. Most IDE > equipment doesn't support hotplug and you could blow a fuse or a chip. yupp... or ... hdparm -S 0 /dev/hdato put the drive to sleep... ( crash ?? ) > -- > Got Backup? was it tested, and does it work c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Hardware IDE ATA Raid 1 support in Linux Debian - Linux disapointment
On Sunday 16 February 2003 08:35, Alvin Oga wrote: > == my raid test ... > > - unplug /dev/hda ... and try to boot ( into degraded mode ) > - unplug /dev/hdc ... and try to boot > > - it should still boot w/o any intervention/typing > > - copy a 2TB file to the raid disks ... unplug the disk to > simulate a crash ... But do this with the computer swtched off, at least with IDE drives. Most IDE equipment doesn't support hotplug and you could blow a fuse or a chip. -- Got Backup? -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Hardware IDE ATA Raid 1 support in Linux Debian - Linux disapointment
On Fri, 14 Feb 2003, Pedro Ruivo (TRQV-DSI) wrote: > I've bought a Highpoint RocketRaid 100 card in order to have a fault > tolerant system. Unfortunately i didn't checked if it was supported under > Debian Linux. suppsedly, supported hw raid is listed here - if its not listed... you can test it out and submit your comments/additions http://www.linux-ide.org/chipsets.html - or google search for that product and see what others have said > It turns out that although i could use it with RedHat, Suse, > Turbo,...,Linux they don't provide drivers for debian, they do provide a > "open source driver". if a driver exists one of the distro... its usually portable to another distro.. software raid setup ... http://www.1U-Raid5.net/HowTo/SW-Raid-HOWTO.txt == my raid test ... - unplug /dev/hda ... and try to boot ( into degraded mode ) - unplug /dev/hdc ... and try to boot - it should still boot w/o any intervention/typing - copy a 2TB file to the raid disks ... unplug the disk to simulate a crash ... - swap in a new disks ... see if it resyncs and that 2TB file is same as the original one - if you lsot data or can't boot... it's not a properly configured "raid" c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Hardware IDE ATA Raid 1 support in Linux Debian - Linux disapointment
On Saturday 15 February 2003 05:28, Nathan E Norman wrote: > [1] I hear 3ware doesn't suck, but I've never used one. >From what I read in a review in c't magazine, 3ware has nice drivers included in the standard kernel and good performance when it comes to RAID 0 or 1. The review also had a look at RAID 5 performance and every single IDE controller sucked royally (they tested 3ware, Adaptec, LSI, Promise, Dawicontrol and others), delivering about the performance of a single laptop drive. The con of using a 3ware controller is that those things aren't on the cheap side. In Germany you pay about EUR 340 to 350 for a 4-port controller because you pay for the RAID 5 functionality. I haven't checked the prices for the 2 port cards, those might be affordable since they only need support for RAID 0 and 1 which is rather simple to implement. -- Got Backup? -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Hardware IDE ATA Raid 1 support in Linux Debian - Linux disapointment
On Sat, Feb 15, 2003 at 01:18:39AM -, Pedro Ruivo (TRQV-DSI) wrote: [ please don't top post. ] > Thanks for you msg. > What i'd like to would be to use hardware raid, i'm used to Compaq (HPAQ) > servers whith smart array controller i thought i would get the same kind of > functionality (limited to raid 0 and 1) on this ide controller. > > I guess i'll toss out this controller and use the onboard ide controller (1 > disk on each channel as i have a SCSI CD-Rom). There's a world of difference between your average SCSI RAID controller, and your average IDE RAID controller, the difference being that the IDE versions are almost always vastly inferior[1]. > Maybe i keep the controller just to try with a newer kernel. This is a Promise controller, right? They don't exactly have a great reputation with regards to good hardware or with providing the necessary info to create a device driver. > Guess Debian is out of hardware manufacturers linux distro list. Only if the hardware manufacturer isn't interested in supporting linux. Adaptec figured this out a long time ago. > I understand the difficulty to make a "for Linux" driver, and hope that LSB > get's more attention in order to easy this Linux difficulties which M$ > doesn't have. I don't understand the difficulty .. all you have to do is release the appropriate information with the hardware. If you want a driver written real fast, you hire someone to do it or send a free on to Alan Cox[2]. of course there are plenty of hardware manufacturers out there who don't want to release hardware specs for varoius reasons.[3] I also don't see how the LSB is going to help in this arena; the LSB is a "standard base" which third party software can depend on to provide certain features and library versions. [1] I hear 3ware doesn't suck, but I've never used one. [2] Or some other intelligent kernel hacker type [3] Video guys like to claim that they'll reveal some trade secret if they release specs. I've been hearing that song since I started playing with computers in the 80s. I suspect in this case Promise doesn't want to release specs because that would make it apparent that their RAID card isn't really a RAID card. -- Nathan Norman - Incanus Networking mailto:[EMAIL PROTECTED] Great minds discuss ideas, average minds discuss events, small minds discuss people. -- Laurence J. Peter -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
RE: Hardware IDE ATA Raid 1 support in Linux Debian - Linux disapointment
Thanks for you msg. What i'd like to would be to use hardware raid, i'm used to Compaq (HPAQ) servers whith smart array controller i thought i would get the same kind of functionality (limited to raid 0 and 1) on this ide controller. I guess i'll toss out this controller and use the onboard ide controller (1 disk on each channel as i have a SCSI CD-Rom). Maybe i keep the controller just to try with a newer kernel. Guess Debian is out of hardware manufacturers linux distro list. I understand the difficulty to make a "for Linux" driver, and hope that LSB get's more attention in order to easy this Linux difficulties which M$ doesn't have. >-- >Got Backup? OOoops,...nnoope.. Thanks again Pedro Ruivo -Mensagem original- De: Nicos Gollan [mailto:[EMAIL PROTECTED]] Enviada: sexta-feira, 14 de Fevereiro de 2003 17:53 Para: [EMAIL PROTECTED] Assunto: Re: Hardware IDE ATA Raid 1 support in Linux Debian - Linux disapointment > Can someone tell me if it's possible, and how, to build a fault > tolerant (RAID1) system with this IDE controller. Has anyone got it to work > under Debian ? You could always use the controller as simple IDE controller using standard kernel drivers and build software RAID. For RAID 0 and 1 this usually produces a very minimal performance hit. You have to jump through some loops in order to make it bootable though. For information about that, here's a page that helped me set up a simple RAID1: http://unthought.net/Software-RAID.HOWTO/Software-RAID.HOWTO.html There are native Highpoint RAID drivers in kernel 2.4.20 (IDE, ATA and ATAPI Block devices -> Support for IDE Raid controllers), but I don't know how well those work. > I have to say one other thing, wich is the disappointmento with > linux in this concern, shouldn't there be "a Linux Driver" ? > I find drivers for Red Hat, Suse, Turbo, ... Linux but not for > Debian and specially not a "for Linux" Driver. Building drivers for specific distributions is usually easier that producing closed source "Linux drivers". When you write driver for, let's say RedHat 8.1, you know what kernel is installed and where to put config stuff. That's a lot more difficult with Linux in general since it's an uncontrolled battlefield. The LSB was supposed to make this easier, but... well... no. If you want a well-designed system, use *BSD. -- Got Backup? -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] BEGIN:VCARD VERSION:2.1 N:Ruivo;Pedro FN:Pedro Ruivo (TRQV-DSI) ORG:Tranquilidade Vida EMAIL;PREF;INTERNET:[EMAIL PROTECTED] REV:20020527T164102Z END:VCARD
Re: Hardware IDE ATA Raid 1 support in Linux Debian - Linux disapointment
On 14 Feb 03 15:39:11 GMT, Pedro Ruivo TRQV-DSI <[EMAIL PROTECTED]> wrote: > I have to say one other thing, wich is the disappointmento with linux > in this concern, shouldn't there be "a Linux Driver" ? > I find drivers for Red Hat, Suse, Turbo, ... Linux but not for > Debian and specially not a "for Linux" Driver. Save your disappointment for the hardware manufacturer. They are the ones making you jump through hoops, not "Linux". GNU/Linux is a *free* operating system and it barely tolerates non-free binary-only drivers. Even so it is clearly possible to write such drivers in ways that don't tie them to specific kernel versions and specific distributions; the NVidia video card drivers are an example. If the manufacturer chooses not to properly support its products under GNU/Linux then you are better taking your business to a manufacturer that does. -- Frank Copeland Home Page: http://thingy.apana.org.au/~fjc/> Not the Scientology Home Page: http://xenu.apana.org.au/ntshp/> -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Hardware IDE ATA Raid 1 support in Linux Debian - Linux disapointment
On Friday 14 February 2003 16:39, Pedro Ruivo (TRQV-DSI) wrote: > It turns out that although i could use it with RedHat, Suse, > Turbo,...,Linux they don't provide drivers for debian, they do provide a > "open source driver". That open source driver supports the chip as a simple IDE controller. They distribute a precompiled object file and a "wrapper" driver to use RAID functionality though. > Can someone tell me if it's possible, and how, to build a fault > tolerant (RAID1) system with this IDE controller. Has anyone got it to work > under Debian ? You could always use the controller as simple IDE controller using standard kernel drivers and build software RAID. For RAID 0 and 1 this usually produces a very minimal performance hit. You have to jump through some loops in order to make it bootable though. For information about that, here's a page that helped me set up a simple RAID1: http://unthought.net/Software-RAID.HOWTO/Software-RAID.HOWTO.html There are native Highpoint RAID drivers in kernel 2.4.20 (IDE, ATA and ATAPI Block devices -> Support for IDE Raid controllers), but I don't know how well those work. > I have to say one other thing, wich is the disappointmento with > linux in this concern, shouldn't there be "a Linux Driver" ? > I find drivers for Red Hat, Suse, Turbo, ... Linux but not for > Debian and specially not a "for Linux" Driver. Building drivers for specific distributions is usually easier that producing closed source "Linux drivers". When you write driver for, let's say RedHat 8.1, you know what kernel is installed and where to put config stuff. That's a lot more difficult with Linux in general since it's an uncontrolled battlefield. The LSB was supposed to make this easier, but... well... no. If you want a well-designed system, use *BSD. -- Got Backup? -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Hardware IDE ATA Raid 1 support in Linux Debian - Linux disapointment
I've bought a Highpoint RocketRaid 100 card in order to have a fault tolerant system. Unfortunately i didn't checked if it was supported under Debian Linux. It turns out that although i could use it with RedHat, Suse, Turbo,...,Linux they don't provide drivers for debian, they do provide a "open source driver". Can someone tell me if it's possible, and how, to build a fault tolerant (RAID1) system with this IDE controller. Has anyone got it to work under Debian ? Thanks in advance I have to say one other thing, wich is the disappointmento with linux in this concern, shouldn't there be "a Linux Driver" ? I find drivers for Red Hat, Suse, Turbo, ... Linux but not for Debian and specially not a "for Linux" Driver. Thanks again Pedro Ruivo -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
