Re: Cache Battery

[Raul Jager <raul@xxxxxxxxxx>]

An old PC, with Linux and the new Access makes a usable console.


On 08/25/2017 09:50 AM, Jim Oberholtzer wrote:
> I'm glad you had a good experience, but it greatly depends on the system,
> which controller card is in there and which disk it controls.  If it happens
> to be the card where the battery slides out the back, (and the battery has
> not bloated so far that it can get out without being manhandled) then your
> experience might happen, but I'll bet against it.  
>
> We don't know from the OP which controller card it is, if it's even
> accessible from the back of the unit or the shape of the batteries.  From
> the description I'm strongly guessing it's an older card (which has the
> batteries on the card not in the little bay at the back) so the card must be
> removed to change it out.
>
> The CE would not require a console if the batteries could be replaced
> concurrently.  Besides that it's really bad practice to have a system
> without a console anyway so bite the bullet and get it done. 
>
>
> --
> Jim Oberholtzer
> Agile Technology Architects
>
>
> -----Original Message-----
> From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
> Justin Taylor
> Sent: Friday, August 25, 2017 8:40 AM
> To: Midrange Systems Technical Discussion
> Subject: RE: Cache Battery
>
> That disagrees with my experience six days ago.
>
>
> -----Original Message-----
> From: Jim Oberholtzer [mailto:midrangel@xxxxxxxxxxxxxxxxx]
> Sent: Friday, August 25, 2017 8:02 AM
> To: 'Midrange Systems Technical Discussion' <midrange-l@xxxxxxxxxxxx>
> Subject: RE: Cache Battery
>
> Jerry:
>
> The CE needs to take the system to a restricted state, and will most likely
> power down the system,  that's the reason for needing the console.  That's
> to be sure the cache is cleared before the batteries are changed.  Besides
> that I'll bet that card controls all the DASD (or at least the load source)
> so, when the card is pulled to change the battery, the system will go down
> hard anyway if it's not brought down nicely.  
>
> Yes, a console is a requirement. 
>
> DEGRADED most likely means the cache is turned off due to the days count on
> the batteries.   System runs but very slowly.   
> --
> Jim Oberholtzer
> Agile Technology Architects
>
>
>
> --
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