datahoarder

6716 readers

18 users here now

Who are we?

We are digital librarians. Among us are represented the various reasons to keep data -- legal requirements, competitive requirements, uncertainty of permanence of cloud services, distaste for transmitting your data externally (e.g. government or corporate espionage), cultural and familial archivists, internet collapse preppers, and people who do it themselves so they're sure it's done right. Everyone has their reasons for curating the data they have decided to keep (either forever or For A Damn Long Time). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.

We are one. We are legion. And we're trying really hard not to forget.

-- 5-4-3-2-1-bang from this thread

founded 4 years ago

MODERATORS

[email protected]

Remember Seagate’s Dual Actuator HDDs? They’re Back, in SATA Form (www.youtube.com)

submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]

15 comments fedilink hide all child comments

What do you think of dual actuator hard drives? I never knew these even existed...

Here's a quick summary of the vid for those who want a TL;DW:

Dual actuator drives are a single drive with two actuator arms inside
These arms have their own platters, each with access to half of the drive's capacity
The SAS version shows up as two separate drives: one for each actuator
The SATA version shows up as a single drive, however can be partitioned at a specific LBA near the middle to use both actuators independently
Linux kernel updated to support these drives better when queuing commands
Capable of saturating a 5gbit SATA link

Personally, my concern is RAID setups, particularly in a SAS config. Will filesystems like ZFS and BTRFS know that two storage devices are the same physical drive... aside from that, and concern about more mechanical parts, this looks exciting especially for sequential speed throughput!

EDIT: fix typos

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] -2 points 1 year ago

Never ever going to buy Seagate again after the crap they've pulled on their Exos drives.

They simply decided to completely trash SMART and spin down commands. The drives simply won't give you useful SMART data nor they won't ever actually spin down, you can't force it, the drive will report is as if it was spun down but in reality its still spinning.