[rescue] Sun Netra 240 w/ 48V Power Supplies- How much current do I need to run it?

[Peter Stokes]

Hi Jerry

Are we talking V240 or Netra 240? The subject line says it is for the Netra,
the V240, although related is a different machine and from what I understood
was classed as a telco quality system, and as such was more expensive to buy
new?

Peter
---------------------------
Peter Stokes
Ashlyn Computer Services
Mbl: 07977 532320
---------------------------




On 10 Dec 2018, at 16:16, Jerry Kemp <sun.mail.list47 at oryx.us> wrote:

> Hello Peter,
>
> Good question, but, not sure that I have a good answer.
>
> sharing the relevant parts of the experience, the employer in question
pushed a lot of data thru those boxes, and they were almost
> always maxing out disk based I/O.
>
> I saw a staggering number of both drives, and SCSI based components replaced
in those V240's.  Although your comment makes perfect
> sense to me, back in the day when these were relevant, a countless number of
maintenance windows were forced to be extended by
> another couple of hours as Sun FE's went to swap out ROHS parts for non-ROHS
parts, or vis-versa.   For what ever it was worth, Sun
> felt that the ROHS vs non-ROHS parts could not be intermingled.
>
> And I will close repeating my earlier comment, hopefully this is null & void
for this particular discussion, regarding V240 power
> supplies.  hopefully it is just a heads up to the OP to be mindful of, in
case he wants to upgrade, or swap out dead components in
> the future.
>
> Jerry
>
>
> -------- Original Message --------
> From: Peter Stokes
> Sent: Sun, Dec 9, 2018 4:04 PM CST
> To: The Rescue List
> Subject: [rescue] Sun Netra 240 w/ 48V Power Supplies- How much current do I
need to run it?
>
> Hi Jerry
>
> Not sure where the ROHS compliance makes a difference, I thought this was
> related to the manufacture process, not the functionality of the parts?
>
> I.e. The non ROHS will do the same job, given it is the same functional
spec.
>
> Peter
>
> Sent from my iPad
>
> On 9 Dec 2018, at 20:55, Jerry Kemp <sun.mail.list47 at oryx.us> wrote:
>
> FWIW, back when these were still in production, or, at least still
> supported, I was working for a large retailer, and we had ~50 of
> them on the 'web tier', in support of the online catalog, web sales, etc.
>
> Apparently, many of the 240's were put out during a transitional time, and
I
> can't count the number of times that Sun went back for
> the right part, when they were out for repair.  Specifically, some boxes
> were ROHS compliant (that we owned), and others weren't.
>
> For the purpose of this discussion, I do NOT believe that power supplies
> ever played into that, but, it seems that every time I pick
> up a new SPARC system, its always my plan to max out memory, CPU, etc.
> Assuming that others do the same.   Food for thought.
>
> Jerry
>
>
>
> -------- Original Message --------
> From: Peter Stokes
> Sent: Sun, Dec 9, 2018 2:33 PM CST
> To: The Rescue List
> Subject: [rescue] Sun Netra 240 w/ 48V Power Supplies- How much current do
I
> need to run it?
>
> Hi
>
> Just a quick thing to check the main fans which were a hot item requested
> for
> spares. They used to be expensive items.
>
> Peter
>
> Sent from my iPad
>
> On 9 Dec 2018, at 02:24, PhreakShow Telephone Company
> <phreakshowtelco at gmail.com> wrote:
>
> I picked up a Sun Netra 240 at U of M surplus for a whopping 5 dollars.
>
> However to run it,  I need to supply it with 48v power.   It came out
> of a telco central office.   Any idea how big of PSU i need to run it?
>
> Thanks
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