Hard Drive Sounds: IBM DHAS-2270
5Manufacturer: IBM
Model: DHAS-2270
Date of manufacture: Unknown (1994 copyright date)
Device name: IBM DHAS-2172
Capacity: 160 MB
Rotational speed: 3600 RPM(?)
Interface: 40-pin parallel mini-SCSI
Form factor: 17mm 2.5"
Actuator: Voice coil
Fully-functional? Yup!
Origin: Macintosh PowerBook 520c
Current home: None (as the PowerBook 520c only works intermittently)
Buy the 2.5" to 3.5" SCSI adapter here: https://www.ebay.com/itm/50-Pin-IDC-2-54mm-Male-to-50-Pin-IDC-2-00mm-Female-SCSI-Laptop-HD-Adapter/270840619638
(Not sponsored, just very satisfied.)
This drive has a different sound than the WDS-280, but overall it performs similarly and has essentially the same history. This particular drive came out of a PowerBook that belonged to my aunt many years ago. The computer didn't see as much use as some other machines from my family, but this little work horse of a drive still got completely filled up and held all that data quite reliably.
Notice that the drive's SCSI device name doesn't match the model number printed on the label. I didn't actually notice this until I was editing the video, but I found it strange. Maybe the drive is based on an earlier design that IBM used in a ThinkPad or something, and they just didn't change the device name?
Copy-pasted from the WDS-280:
A typical example of Apple's PowerBook hard drives. Very few manufacturers ever used 2.5" SCSI, as 2.5" PATA was far easier to utilize and more readily available. I can only assume this compromise was made to keep performance high and/or cost of development low, considering Apple's dedication to no-less-than decently-performing hardware and the fact that the entire (early) PowerBook lineup was nearly unchanged at the basic hardware level from a Macintosh Plus or Macintosh II. They used the exact same CPU, sound, and video hardware, but different RAM and of course were designed to run from batteries. I'm guessing they implemented SCSI in the portables simply so they didn't have to implement a new type of data bus.
Of course, just like every other consumer IBM drive of the time, these drives aren't exactly fast, but they sure are quiet and reliable.That soft IBM ticking sound is almost identical to the desktop IBM drive I showed last time.
Configuration used:
Dell Dimension 5150 from around 2005 probably. Specs aren't important but it's a Pentium 4 HT 3.0 GHz with 1 gig of RAM.
Adaptec AHA-2930CU PCI SCSI interface.
FreeDOS 1.2 from a floppy disk running the HDMotion software.