Re: [gentoo-user] Long boot time after kernel update

[Dale]

Frank Steinmetzger wrote:
> Am Sun, Jan 02, 2022 at 01:38:01PM -0600 schrieb Dale:
>
> Same for my 6 TB Reds in the NAS. But 1200 is a rather big increase. Did you
> ever try this? Almost double for only one third more capacity.
>
> I suspect that internally the drive can do the long selftest in parallel --
> all platters at the same time. But when going from CMR to SMR, platter count
> does not grow linearly with capacity. So the drive may have ⅓ more capacity,
> but number of platters stayed the same.

This is what it reports for the 8Tb drive.


root@fireball / # smartctl -a /dev/sdc | grep poll
recommended polling time:        (   2) minutes.
recommended polling time:        (1175) minutes.
root@fireball / #


root@fireball / # smartctl -i /dev/sdc
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.14.15-gentoo] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Red
Device Model:     WDC WD80EFZX-68UW8N0
Serial Number:    XXXXXXXXXXXXX
LU WWN Device Id: XXXXXXXXXXXXXX
Firmware Version: 83.H0A83
User Capacity:    8,001,563,222,016 bytes [8.00 TB]


I recall running it when I first bought the drive, to be sure it was not
reporting any problems after shipping etc, and that sounds about right. 
I know it took a good long while.



>
>> Yea, over two days.  O_O
> Uhm, even without a calculator, I challange that. 1 hour is 60 minutes, so
> 10 hours = 600 minutes, making 1200 minutes a mere 20 hours. ;-)
>
>> Dale
>>
>> :-)  :-) 
>>


Ooops.  I think I forgot to divide by 60 first.  Should be 1200/60/24. 
I think I skipped the 60 part.  Math isn't always by best thing.  lol 

Dale

:-)  :-)