[Info-vax] 3rd party SATA SSD usage on RX2660+P400 in a production environment?

[Stephen Hoffman]

On 2019-07-01 01:29:14 +0000, David Turner said:

> Well, Rod, I have unused HGST SAS Drives 12G that are nowhere near your 
> pricing and I have them in stock and I have tested them with VMS on HPE 
> Integrity rx2800 i4 and i2. No doubt they work but use a P800 and a 
> PCI-e/PCI-X backplane. The crappy onboard controller on the rx2660 
> cannot handle anything (512Mbit/sec) compared with the P800 at 3Gbit or 
> even the P812 6Gbit (works great with SSD)

HDDs are ~100 to 200 IOPS or so per spindle whether helium or 
otherwise, versus as much as 100,000 IOPS with SSD.

And OpenVMS can't address any storage volume past 2 TiB prior to VSI 
VAFS, so those HGST SAS drives won't work with OpenVMS.

Not prior to OpenVMS V9.2 or so, or whenever VAFS becomes available.  
Or not without controller-level partitioning or controller-provided 
storage virtualization.





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Pure Personal Opinion | HoffmanLabs LLC