| Title: | TurboLaser Notesfile - AlphaServer 8200 and 8400 systems |
| Notice: | Welcome to WONDER::TURBOLASER in it's new home shortly |
| Moderator: | LANDO::DROBNER |
| Created: | Tue Dec 20 1994 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 1218 |
| Total number of notes: | 4645 |
A business partner of mine wants to know how a turbolaser or rawhide handles losing a CPU under DIGITAL UNIX. I assume that if the primary CPU dies, the system will panic & crash. How about if one of the secondary processors die? Also, can the primary be re-assigned at the SRM level? Or do you need to swap boards from one slot to another. [Posted by WWW Notes gateway]
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 1152.1 | Primary is selected automatically | SMURF::GREBUS | DTN 381-1426 - Digital Unix | Thu Mar 27 1997 12:41 | 11 |
If any of the CPU's encounters a fatal error (basically anything other
than recovered ECC errors), the system will log the failure and crash.
If a processor is really broken (i.e. if powerup diagnostics fail)
it will be excluded from the configuration on the next boot. If that
processor was the primary, a new primary is automatically selected.
The primary processor can also be selected from the SRM console prompt.
/gary
| |||||
| 1152.2 | DANGER::HARTWELL | Thu Mar 27 1997 13:11 | 5 | ||
Since most all if not all implementations both for ALPHA, HP RISC, and
SPARC all use write-back cache, if a CPU dies, you now have
non-coherant data. The OS must crash.
/Dave
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| 1152.3 | Many Thanks! | NETRIX::"[email protected]" | Dan Notov | Thu Mar 27 1997 13:40 | 2 |
Thanks for your swift responses! [Posted by WWW Notes gateway] | |||||