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

[David Turner]

Strange as VMS is installed on a RAID1 HGST SSD set I use for testing



On 7/1/2019 12:04 PM, Stephen Hoffman wrote:
> 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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