I have 8x Hitachi 5K3000 3TB disks in RAID6 on my Areca controller.
On the controller these show as 18000.0GB
In Ubuntu it shows as 18000.0GB in fdisk
But when formatted this is showing as 16.76 TB
I work this out as 17162GB (16.76 x 1024), assuming that's correct?
So providing I am not missing something obvious here, I should have my full 18000GB available resulting in 17.57 TB
Where has my 0.81TB gone?
Sorry if I have completely miscalculated this! Running on under 5 hours sleep today haha
On the controller these show as 18000.0GB
In Ubuntu it shows as 18000.0GB in fdisk
Code:
Disk /dev/sdb: 18000.0 GB, 17999997173760 bytes
255 heads, 63 sectors/track, 273546 cylinders, total 4394530560 sectors
Units = sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
But when formatted this is showing as 16.76 TB
I work this out as 17162GB (16.76 x 1024), assuming that's correct?
So providing I am not missing something obvious here, I should have my full 18000GB available resulting in 17.57 TB
Where has my 0.81TB gone?
Sorry if I have completely miscalculated this! Running on under 5 hours sleep today haha