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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 (tm) ). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.

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How to software RAID 0 on 2 partition of the same drive (for dual actuator drive speedup) under Windows (alien.top)

submitted 11 months ago by [email protected] to c/[email protected]

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Hello!

I just got a Seagate Exos Mach2 dual actuator sata drive and am trying to create a RAID 0 out of the two halved partitions in order to mimic what the SAS version does with the two LUNs and basically double the potential speed by using both actuators simultaneously.

I cannot however seem to figure out how to create this striped volume, as the disk management options are all greyed out. I've tried switching the disk to dynamic as well, and it's the same thing.

I'm not too sure how to achieve this, since RAID usually requires disks and not partitions, but it's definitely achievable under Linux: https://forum.level1techs.com/t/how-to-zfs-on-dual-actuator-mach2-drives-from-seagate-without-worry/197067

Anyone know? The limitation being of course, Windows.

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[–] [email protected] 1 points 11 months ago (1 children)

for testing, you can create two VHD virtual disks on the drive and mount them as RAID0. This way you can try out if the method have any benefits or not.

however I doubt about the method, because your partitions, or VHDs are linear. One is at the beginning of the disk and fast, other is the second half on the disk which has slower access speeds and also the throughput is slower.

[–] [email protected] 1 points 11 months ago

The benefits exist for sure, due to the SAS version that exposes them as two different drives, which you can easily raid and get the full expected 500mb/s. The SATA version, which I have, and cheaper ofc, doesn't do it that way, even though you can split the drive in two and independently, both run at the max regular 250mb/s speed, I'm trying to "hack" the same solution to extract the benefit, but it might indeed not be possible due to the limitation of them being partitions and not drives.