Re: component devices too large

2006-02-18 Thread Neil Brown
On Saturday February 18, [EMAIL PROTECTED] wrote: > > The amount of each component drive this is actually in use is stored - > > in the default metadata - in a 32bit number as kilobytes. > > This sets a limit of 4TB. > > > > The version-1 metadata format has a 64bit field. > > > > If you use mdad

Re: component devices too large

2006-02-18 Thread Jeff Hardy
> The amount of each component drive this is actually in use is stored - > in the default metadata - in a 32bit number as kilobytes. > This sets a limit of 4TB. > > The version-1 metadata format has a 64bit field. > > If you use mdadm 2.3, it will automatically select version-1 metadata > if you

Re: block level vs. file level

2006-02-18 Thread Bill Davidsen
Andy Smith wrote: On Sun, Feb 12, 2006 at 11:31:07AM -0800, it wrote: The hardware raid does the mirroring on the block level, so it's actually /dev/sda mirroring /dev/sdb - the whole drive, and not partitions. There is a way to set this up on software raid. It takes more configuration twe

RAID-5 borked .. but how borked?

2006-02-18 Thread jedd
Howdi, I'm running a RAID5 system across 300GB IDE drives, on an amd32 box. I recently attempted to raidreconf that from 4 drives to 5 drives. There were no telltale signs of trouble with any of the drives -- all of them identical models of Seagates. About 90% of the way through the process

Re: component devices too large

2006-02-18 Thread Neil Brown
On Saturday February 18, [EMAIL PROTECTED] wrote: > I'm running 2.6.14.6 with CONFIG_LBD yes, with access to some pretty > large AoE block devices. When I try to create a RAID1 between a couple > of block devices larger than 4TB, mdadm complains with: > > mdadm: devices too large for RAID level 1

component devices too large

2006-02-18 Thread Jeff Hardy
I'm running 2.6.14.6 with CONFIG_LBD yes, with access to some pretty large AoE block devices. When I try to create a RAID1 between a couple of block devices larger than 4TB, mdadm complains with: mdadm: devices too large for RAID level 1 As long as I back the size down to 4TB or less, it will wo

Re: quota on raid

2006-02-18 Thread Luca Berra
On Sat, Feb 18, 2006 at 02:30:47PM +0100, Antonello PAPA wrote: At 09.49 18/02/06, you wrote: On Sat, Feb 18, 2006 at 09:42:04AM +0100, Luca Berra wrote: On Sat, Feb 18, 2006 at 02:12:26AM +0100, Antonello PAPA wrote: i have two disk with raid 1. i can't find documents on how to set the quotas

Large Stripe Size (>4MB)

2006-02-18 Thread Paul M.
Couple questions related to some raid using some firewire disks: Is it possible to set the stripe size to 16+MB? Is there a way to force the raid driver to only access one disk at a time? Thanks, Paul - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a messa

Re: quota on raid

2006-02-18 Thread Antonello PAPA
At 09.49 18/02/06, you wrote: On Sat, Feb 18, 2006 at 09:42:04AM +0100, Luca Berra wrote: On Sat, Feb 18, 2006 at 02:12:26AM +0100, Antonello PAPA wrote: i have two disk with raid 1. i can't find documents on how to set the quotas. i whould like to set the quota on /home, can some opne help? th

Re: Raid on USB2 ?

2006-02-18 Thread Gordon Henderson
On Sat, 18 Feb 2006, PFC wrote: > >> Anybody tried a Raid1 or Raid5 on USB2. > >> If so did it crawl or was it usable ? > > Why not external SATA ? > After all, the little cute SATA cables are a lot more suited to this > than > the old, ugly flat PATA cables... Until you break a moth

Re: Raid on USB2 ?

2006-02-18 Thread PFC
Anybody tried a Raid1 or Raid5 on USB2. If so did it crawl or was it usable ? Why not external SATA ? After all, the little cute SATA cables are a lot more suited to this than the old, ugly flat PATA cables... - To unsubscribe from this list: send the line "unsubscribe linux-raid" in

Re: quota on raid

2006-02-18 Thread Luca Berra
On Sat, Feb 18, 2006 at 09:42:04AM +0100, Luca Berra wrote: On Sat, Feb 18, 2006 at 02:12:26AM +0100, Antonello PAPA wrote: i have two disk with raid 1. i can't find documents on how to set the quotas. i whould like to set the quota on /home, can some opne help? thanks and sorry for bad english

Re: quota on raid

2006-02-18 Thread Luca Berra
On Sat, Feb 18, 2006 at 02:12:26AM +0100, Antonello PAPA wrote: i have two disk with raid 1. i can't find documents on how to set the quotas. i whould like to set the quota on /home, can some opne help? thanks and sorry for bad english. antonello in italian: http://www.lnf.infn.it/computing/d