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Forum Discussion
Solved
Compatibility with Hitachi 7K6000 disks
Background information: Have a ReadyNAS Pro 6 unit with 6 Hitachi Ultrastar 7K3000 3TB disks (which have a 512 bytes sector size). Recently added the last 2 disks to fill all 6 drive bays. Have b...
In a ReadyNAS 628 and a ReadyNAS Ultra 6 Plus, which self-identifies as a ReadyNAS Pro, the following HGST 4TB-10TB drives are among those that I have used successfully:
HGST HUS724040ALE640 4TB (Ultrastar)
HGST HUS726040ALE614 4TB (Ultrastar)
HGST HUH728080ALE600 8TB (He8)
HGST HUH721010ALE600 10TB (He10)
Hitachi's disk business was sold to Western Digital in 2012, so Hitachi isn't manufacturing any of these drives anymore.
Note that the HCL isn't being updated for legacy NAS like the pro-6 for some time. So you kind of are on your own.
512e means that the native sector size of the disk is 4096 bytes, but that it emulates 512 byte sectors. I suspect the 512e model is likely a bit newer, so I'd probabably go with that. Though both are still listed on the hgst website ( https://www.hgst.com/products/hard-drives/ultrastar-7k6000 )
The WDC Red Pro is another option - it is somewhat cheaper, and also has enterprise specs.
Thank you for the response. Decided to try the HUS726040ALA610 (512n sector size) and hope for the best. Will know for sure next week after installing the new drives.
In a ReadyNAS 628 and a ReadyNAS Ultra 6 Plus, which self-identifies as a ReadyNAS Pro, the following HGST 4TB-10TB drives are among those that I have used successfully:
HGST HUS724040ALE640 4TB (Ultrastar)
HGST HUS726040ALE614 4TB (Ultrastar)
HGST HUH728080ALE600 8TB (He8)
HGST HUH721010ALE600 10TB (He10)
Thank you for the feedback. This is very helpful.
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