Re: bioctl crypto size limitation ?

On 05/26/17 11:43, Ted Unangst wrote:
> sharon s. wrote:
>>>> softraid0: invalid metadata format
>>> You filled the disk with random data, which is not a valid metadata format...
>> I followed the FAQ, http://www.openbsd.org/faq/faq14.html#softraidCrypto .
> Sorry, I was hasty. You can also try creating smaller partitions. 16TB, 8TB,
> etc. to see what works. That would be helpful information to have.
>

8Tb seems to be fine, 16 not so much. Ran into a weird issue where I
couldn't try with 12Tb.

# dd if=/dev/random of=/dev/rsd0c bs=1m
^C4310+0 records in
4309+0 records out
4518313984 bytes transferred in 90.924 secs (49692799 bytes/sec)
20170526-1539: tbisch@store:/root:# fdisk -iy -g sd0
Writing MBR at offset 0.
Writing GPT.

# disklabel -E sd0
Label editor (enter '?' for help at any prompt)
> a a
offset: [64]
size: [70319603585] 16T
Rounding size to cylinder (16065 sectors): 34359741611
FS type: [4.2BSD] RAID
> w
> q
No label changes.

# bioctl -v -c C -l sd0a softraid0
New passphrase:
Re-type passphrase:
Deriving key using bcrypt PBKDF with 16 rounds...
bioctl: unknown error


# dd if=/dev/random of=/dev/rsd0c bs=1m
^C2465+0 records in
2464+0 records out
2583691264 bytes transferred in 51.839 secs (49840098 bytes/sec)

# fdisk -iy -g sd0
Writing MBR at offset 0.
Writing GPT.

# disklabel -E sd0
Label editor (enter '?' for help at any prompt)
> a a
offset: [64]
size: [70319603585] 8T
Rounding size to cylinder (16065 sectors): 17179878806
FS type: [4.2BSD] RAID
> w
> q
No label changes.

# bioctl -v -c C -l sd0a softraid0
New passphrase:
Re-type passphrase:
Deriving key using bcrypt PBKDF with 16 rounds...
softraid0: CRYPTO volume attached as sd4


# dd if=/dev/random of=/dev/rsd0c bs=1m
^C2914+0 records in
2913+0 records out
3054501888 bytes transferred in 61.213 secs (49899553 bytes/sec)
20170526-1544: tbisch@store:/root:# fdisk -iy -g sd0
Writing MBR at offset 0.
Writing GPT.

# disklabel -E sd0
Label editor (enter '?' for help at any prompt)
> a a
offset: [64]
size: [70319603585] 12T
Rounding size to cylinder (16065 sectors): 25769818241
FS type: [4.2BSD] RAID
> w
disklabel: ioctl DIOCWDINFO: Open partition would move or shrink
disklabel: unable to write label