[GLLUG] RAID1 and Debian 7.2.0 installer
j.roberts at stabilys.com
Mon Oct 14 14:54:57 UTC 2013
On 14/10/13 14:14, John Edwards wrote:
> The first thing to check is whether a machine that old can detect the
> 3TB disks correctly. Then check whether the 3TB disks are partitioned
> using the DOS style partitions or the newer GPT partitions.
> Also I assume that the machine can not boot using EFI and so uses a
> conventional PC BIOS.
I have had all sorts of "interesting" issues with accessing
partitions/disks >> 2TB and have not yet got a successful general
solution using single partitions (or equivalents) and any form of
software RAID. The tools overall are limited in number and there's not
much up to date info around.
I guess ZFS/BtrFS would eventually be a comprehensive answer.
The solution I have adopted for some machines is as follows:
- partitions or disks >2TB using LVM on RAW on hardware RAID for data
- a separate <2TB partition (or sometimes a USB key) for the boot and/or
- but that does not help you.
It's possible to do Software RAID on LVM partitions but... complex.
The only times I have lost data on Linux it has involved LVM + Software
RAID (together - separately, they are just fine to fix)
Some resources I have used:
- http://www.rodsbooks.com/gdisk/ (gdisk is good IMHO)
There is a link here that might have some info:
Good luck. You might want a newer machine though.
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244 Kilburn Lane
0845 838 5370
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