||5th May 2012 07:27
RAID1 with GPT ?
I have successfully installed and tested configuring software RAID1 as guided in http://www.howtoforge.com/how-to-set...n-ubuntu-10.04
on my test environment.
However, my production server is with 2 TB drives, the partitions during installation created GPT. Now fdisk and sfdisk commands do not work with GPT which have been used in the said howto.
I installed gdisk to deal with, and its almost similar to fdisk, but couldn't find alternative for sfdisk. Then I came to know about a comment by paul at http://www.howtoforge.com/how-to-set...debian-squeeze
. I am going to install it again as commented.
I would like to invite suggestion and other ways of doing the same.
||7th May 2012 08:03
Originally Posted by falko
What is GPT?
root@GPT-RAID:~# fdisk -l
WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sda: 2199.0 GB, 2199022206976 bytes
255 heads, 63 sectors/track, 267349 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sda1 1 267350 2147482623+ ee GPT
root@GPT-RAID:~# gdisk -l /dev/sda
GPT fdisk (gdisk) version 0.5.1
Partition table scan:
BSD: not present
APM: not present
Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 4294965248 sectors, 2.0 TiB
Disk identifier (GUID): D68031F5-9C77-471F-BE42-DADC86F5B8D5
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 4294965214
Total free space is 4029 sectors (2.0 MiB)
Number Start (sector) End (sector) Size Code Name
1 2048 976895 476.0 MiB EF00
2 976896 30273535 14.0 GiB 8200
3 30273536 4294963199 2.0 TiB 0700
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