[ILUG] Highpoint Sata RAID
Niall O Broin
niall at linux.ie
Mon Mar 28 10:58:37 IST 2005
On 28 Mar 2005, at 04:17, Paul Jakma wrote:
> Linux MD seems to support 'growing' RAID devices, regardless of level.
So it does, to my surprise. But then, you can always rely on Linux
developers to scratch an itch. But a couple of quotes from the
raidreconf (the tool which does the business) man page
The author will give you no guarantee whatsoever, that this program
works in any specific way at all. It may well destroy all data on any
device connected directly, indirectly, or not at all, to any system
this software is used on.
> As do many proprietary hardware RAID devices.
I wouldn't be surprised if their documentation has similar warnings.
The bottom line is that resizing a RAID-5 array on the fly is really
playing with fire, as disk blocks, containing your data, are zipping
around the place with wild abandon. The original poster did specify
that his data was valuable, so he'd better be sure to have a backup
before trying any of these resizing operations.
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