On Tue, 31 Jan 2006, Enrique Garcia Briones wrote: > Thanks Gordon, > > I will then read and re-read the RAID-6 configuration, and something I miss > to explain, may be is not to be discussed here, is that when I installed the > Linux with the A1000 pulled out everything went out well but, when I > reconnect the A1000 the system didn't start up correctly... so my unique way > was to install the Linux in the first hard drive of the A1000 and it seems > to be working fine, Is that alternative functional? I'd be tempted to remove the A1000 and install on the 2 internal drives, then once that's happy, plug the A1000 back in again. It might be that the OBP (Open Boot Prom) code is favouring the external device to boot off, but it's been a very long time since I've dabbled in that. You'd need to push Stop+A at boot time then enter some runes at the OK prompt to check/reconfigure the boot device. The A1000 devices I've used had an on-board RAID controller and some software that ran under Solaris to configure it, so that might be somethign to look into too - to make sure it's doing what you expect it to be doing. Gordon > > thanks > > ---------- Forwarded Message ----------- > From: Gordon Henderson <gordon@xxxxxxxxxx> > To: Enrique Garcia Briones <egarcia@xxxxxxxxxxxxx> > Cc: linux-raid@xxxxxxxxxxxxxxx > Sent: Tue, 31 Jan 2006 17:05:12 +0000 (GMT) > Subject: Re: Configuring combination of RAID-1 RAID-5 > > On Tue, 31 Jan 2006, Enrique Garcia Briones wrote: > > > Hi, > > > > Let me introduce myself. > > > > I'm newbie in linux and in RAID over linux, I have configured a RAID-0 in a > > NetBSD 2.0 BOX. so, now let me explain what I'm trying to do, > > > > Antecedents/Equipment: > > > > I have a Sparc 420 with 4 processors and 4 Gb in RAM, two SCSI SEAGATE > > internal hard disk with an array of 12 hard disks (Storedge 1000). > > > > What we want to have: > > > > We installed Debian Linux (I think it is 3.1 with kernel 2.4), and we want > > to have the following configuration: > > > > 1 System Harddisk > > 1 RAID-1 Mirror Hard Drive > > 12 Hard drives in RAID-5, 10 working and 2 as spare disks. > > > > I have read the setting-up for the raid-5 and 1, but I would like to ask > you > > if I can set-up a combined RAID configuration as mentioned above, since all > > the examples I found upto now just talk of one RAD configuration, besides > > this, I would like to ask you that if the configuration I want to have is > > STRONG enough for the quantity of disk in the box, or if there must be any > > other considerations to have. > > Wow. an A1000. Ancient, but probably still OK. I'm not sure if there are > any management utilities for them that'll run under Linux - I've only ever > seen 2 of these and they seem to be able to run RAID themselves - might be > faster, but the ones I had were slow anyway - maybe you can re-configure > them to just look like 12 disks and let Linux do the RAID on them... > > Heres my suggestion: > > Install a 2.6 kernel. > > Partition both internal disks identically, then then combine all the > partitions with RAID-1. Boot off RAID-1, if you can - I'm not up on the > SLILO/whatever boot loaders for Sparc though. > > Configure the 12 external disks using RAID-6. You'll get one disk more > worth of storage that way and still be able to sustain a 2 disk failure. > > Gordon > > - > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > ------- End of Forwarded Message ------- > > > -- > UAdeC > En el Bien fincamos el Saber > Open WebMail Project (http://openwebmail.org) > > - > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
