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 :-) :-)
