Re: RAID 5 questions (software)

2005-07-08 Thread michael
Quoting Michael Martinell <[EMAIL PROTECTED]>: Results: If I replace hard drive 1 I am unable to boot. Using the grub boot disk and pointing at hd 2,0 generates the following messages: md2 No spare disk to reconstruct array! continuing in degraded mode EXT3-fs: unable to read superblock pivot

Re: RAID 5 questions (software)

2005-07-07 Thread David Clymer
On Thu, 2005-07-07 at 12:10 -0500, Michael Martinell wrote: > an aside: what is the command to invoke the raid software w/o using the > setup disk? mdadm is the most common raid management software nowadays. $ mdadm --run /dev/md0 will start up the first raid device that you have already config

Re: RAID 5 questions (software)

2005-07-07 Thread Andy Smith
On Thu, Jul 07, 2005 at 01:34:15PM -0500, Michael Martinell wrote: > > On Thu, July 7, 2005 11:11 am, Andy Smith said: > > >> If the first hard drive crashes how do you recover? > > > > You restore from backups or do a new install. > > > > There has got to be a better solution than that. I neve

Re: RAID 5 questions (software)

2005-07-07 Thread Michael Martinell
On Thu, July 7, 2005 11:11 am, Andy Smith said: >> If the first hard drive crashes how do you recover? > > You restore from backups or do a new install. > There has got to be a better solution than that. I never want to consider my backups to be a first line of defense against hardware failure.

Re: RAID 5 questions (software)

2005-07-07 Thread Michael Martinell
> You never mentioned a RAID controller so I assumed software RAID. > If you have a hardware RAID controller then the steps are usually > unique to that hardware and you need to consult its documentation. > That would be a typo - I have no raid controllor - just IDE. What I should have said was

Re: RAID 5 questions (software)

2005-07-07 Thread Andy Smith
On Thu, Jul 07, 2005 at 11:57:01AM -0500, Michael Martinell wrote: > On Thu, July 7, 2005 11:11 am, Andy Smith said: > > On Thu, Jul 07, 2005 at 10:53:34AM -0500, Michael Martinell wrote: > >> I have been experiementing with the RAID stuff in Debian 3.1r0a > >> > >> In this experiment I configured

Re: RAID 5 questions (software)

2005-07-07 Thread Michael Martinell
On Thu, July 7, 2005 11:11 am, Andy Smith said: > On Thu, Jul 07, 2005 at 10:53:34AM -0500, Michael Martinell wrote: >> I have been experiementing with the RAID stuff in Debian 3.1r0a >> >> In this experiment I configured as follows: >> 1st Hard Drive >> /boot 400mb >> swap 2GB >> partition for Ra

Re: RAID 5 questions (software)

2005-07-07 Thread Andy Smith
On Thu, Jul 07, 2005 at 10:53:34AM -0500, Michael Martinell wrote: > I have been experiementing with the RAID stuff in Debian 3.1r0a > > In this experiment I configured as follows: > 1st Hard Drive > /boot 400mb > swap 2GB > partition for Raid volume 37 GB > > 2nd - 4th HD > partition for Raid vo