Re: Newbie question on mdadm
Tim:
> Though it can be surprising to find out how they've used a
drive.
> Such as a 4TB WD MyCloud that provides that 4TB using two 2TB
> partitions on the *same* drive, using RAID to make them one 4TB. I
> dunno why they'd do it that way.
George N. White III:
If you control the hardware you get more options. I've opened
up
dozens of older drives to destroy platters, and they all had one
actuator shared by all the heads. Maybe the WD drives have two
actuators, so are effectively 2x2TB drives on one case.
Interesting. I hadn't considered that reason (although the drive does
look identical to any other hard drive in size and shape). It's quite
a quiet drive, too, so it doesn't sound like two mechanisms. Not
that's a very scientific assessment.
I just guessed they were doing something oddball. Like a workaround
for a maximum partition size their software could handle. One day, if
I get the chance again, I'll see if I can jot down the drive model
info.
--
uname -rsvp
Linux 3.10.0-1127.el7.x86_64 #1 SMP Tue Mar 31 23:36:51 UTC 2020 x86_64
Boilerplate: All unexpected mail to my mailbox is automatically deleted.
I will only get to see the messages that are posted to the mailing list.