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Sent: July-03-21 4:07 AM
Subject: Re: [Info-vax] VSI OpenVMS V9.1 Field Test beginning.
Post by John H. Reinhardt Post by John H. Reinhardt Post by John H. Reinhardt
VSI OpenVMS x86-64 V9.1 only supports SATA disks. Support for other
disk types will be added in future releases of VSI OpenVMS x86-64.
I had always assumed that I would have a mixed cluster and add some
x86 disks to shadow sets, then removed the SCSI members and the
nodes hosting them one by one until everything is new. If x86 will
support SCSI, could I plug my Top-Gun Blue 40 MB/s SCSI disks in the
Top-Gun Blue BA356 boxes into x86?
2. Hardware Support
Direct support for x86-64 hardware systems (models to be specified)
be added in later releases.
Post by John H. Reinhardt
Not initially. The current release of FT9.1 only runs on virtual
hosts. While you could probably get a SCSI card to go into whatever
machine you use as a virtual host, you'd need some sort of pass thru
connection to get those SCSI disks to the OpenVMS
I plan to wait for bare metal in any case.
Post by John H. Reinhardt
The field test V9.1 does support MSCP served disks, however so *iof*
you can cluster with an Alpha, then it could serve the disks such that
the x86 OpenVMS can access them.
Presumably MSCP-served disks will always be supported. That's what I was
thinking of originally: use MSCP to serve all disks to all nodes, then make
shadow sets of SCSI members on Alpha and whatever is available on x86.
Interesting how history always repeats itself - especially in the IT world.
For those not familiar with an emerging very hot software defined VM hosting
technology called HCI (Hyperconverged Infrastructure) from companies like
Nutanix, HPE, Dell etc., one of the key ways HCI drastically reduces overall
costs, is to eliminate expensive and complex fibre based SAN switches, SAN
controllers etc. and instead, use cheap local drives and "serve" this local
storage in a distributed manner to other commodity X86-64 server nodes in
the HCI cluster. Overall integrated cluster mgmt. solutions are also a key
component of HCI.
While thy support VMware as well, Nutanix core product also provides their
own hypervisor to host VM's without the very high costs with VMware
licensing that is now becoming a big concern for med-large IT shops.
While HCI solutions also support SAN infrastructure, the biggest cost
savings usually touted is to use cheap local drives and then serve these
local drives storage to other server nodes in the cluster. HCI also uses
host-based RAID strategies (replication factors determine RAID level) to
mitigate local drive failures.
Does this not sound like MSCP and HBVS?
The more things change, the more they stay the same.
Kerry dot main at starkgaming dot com
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