Am 13.09.22 um 12:39 schrieb Pascal Hambourg:
On 13/09/2022 at 12:28, Reindl Harald wrote:
BTW: currently the machines are BIOS-boot - am i right that the 2 TB
limitation only requires that the parts which are needed for booting
are on the first 2 TB and i can use 4 TB SSD's on the two bigger
machines?
Which 2 TB limitation ? EDD BIOS calls use 64-bit LBA and should not
have any practical limitation unless the BIOS implementation is flawed.
in that case i think i would need GPT partitioning and does GRUB2
support booting from GPT-partitioned disks in BIOS-mode?
Yes, but it requires a "BIOS boot" partition for the core image (usually
less than 100 kB, so 1 MB is plenty enough). Also some flawed BIOS
require that a legacy partition entry in the protective MBR has the
"boot" flag set
https://www.cyberciti.biz/tips/fdisk-unable-to-create-partition-greater-2tb.html
"For example, you cannot create 3TB or 4TB partition size (RAID based)
using the fdisk command. It will not allow you to create a partition
that is greater than 2TB" makes me nervous
how to get a > 3 TB partition for /dev/md2
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and finally how would the command look for "Then with just two drives
you change the raid to raid-1"?
the first two drives are ordered to start with 1 out of 4 machines ASAP
given that the machine in front of me is running since 2011/06 365/24......
