[OpenIndiana-discuss] disk size limit

[Pierfrancesco Caci]

On Thu, 12 Dec 2024 at 08:23, Toomas Soome via openindiana-discuss <
openindiana-discuss at openindiana.org> wrote:

>
> I’m not quite sure why size would be an issue there - unless installer is
> insisting to use MBR+VTOC and will fail there, but if so - thats bug for
> sure. IMO  the GPT should be default and MBR+VTOC should use annoying
> confirmations if the user is really-really sure to use it;)
>

so, this is how linux sees them:


root at test:~# sfdisk -l
Disk /dev/nvme0n1: 3.64 TiB, 4000787030016 bytes, 7814037168 sectors
Disk model: KINGSTON SNV2S4000G
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 14BF5E17-A9F7-4015-82A2-AB9CA09CCA80

Device           Start        End    Sectors  Size Type
/dev/nvme0n1p1    2048    1953791    1951744  953M EFI System
/dev/nvme0n1p2 1953792 7814035455 7812081664  3.6T Linux filesystem


Disk /dev/sdb: 1.82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: ST2000DM008-2FR1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 2236D5C7-DCED-DB4E-84DC-7F3266A0EB8A

Device          Start        End    Sectors  Size Type
/dev/sdb1         256     524543     524288  256M EFI System
/dev/sdb2      524544 3907012750 3906488207  1.8T Solaris /usr & Apple ZFS
/dev/sdb9  3907012751 3907029134      16384    8M Solaris reserved 1

Partition 9 does not start on physical sector boundary.


Disk /dev/sda: 1.82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: ST2000DM006-2DM1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: DAB7E9F4-0C55-4A7B-B530-71462AC6017C


Disk /dev/sdc: 18.19 TiB, 20000588955648 bytes, 39063650304 sectors
Disk model: TOSHIBA MG10ACA2
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 6DAE86F3-CB47-4815-B3EE-E3E7734D2F47


They seem to be all gpt, and all supporting 512 bytes sectors.


> There currently is one limit, however. We are still completing the support
> for 4kn sector size for boot (that is, to create ESP with FAT32 on 4k
> sector size), if those disks do have 4kn sector size (no 512B support),
> then manual work and external tools are needed.
>

They are currently all set at 512. The nvme support 4096 for sure, the 20G
spinner I'm not sure what's the right command to check.

side question: what's the equivalent of "lsblk" in OI ?

root at test:~# lsblk
NAME        MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
sda           8:0    0  1.8T  0 disk
sdb           8:16   0  1.8T  0 disk
├─sdb1        8:17   0  256M  0 part
├─sdb2        8:18   0  1.8T  0 part
└─sdb9        8:25   0    8M  0 part
sdc           8:32   0 18.2T  0 disk
sr0          11:0    1 1024M  0 rom
nvme0n1     259:0    0  3.6T  0 disk
├─nvme0n1p1 259:1    0  953M  0 part /boot/efi
└─nvme0n1p2 259:2    0  3.6T  0 part /

-- 
 Pierfrancesco Caci, ik5pvx