Seagate ST3390N Guía de instalación descargar pdf (Pagina 317)

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101

Troubleshooting operational problems 17-9

AML problems

Standard 1.0 Modular Option EC Installation and Maintenance Guide November 1999

• Meridian 1 hardware input/output address conflicts (for

example, two SDI, ESDI/MSDL, or D-channel cards

with the same addresses)

• Meridian 1 or Meridian Mail software upgrades or

conversions

• ESDI/MSDL, cable, or Local Data Set failures

• Loose cable connections

• Manual or overlay-controlled disabling of the link

• External equipment as a source of electromagnetic

interference (EMI)

• Loss of commercial power

• Other critical failures

When any of these events occur, AML messages indicating a

change of call status may be lost. This may result in a conflict

between the Meridian 1 and Meridian Mail regarding the

status of a terminal or an established call. Once the failure has

been recovered, a series of AML messages are used to resolve

these conflicts. This activity is controlled by Meridian Mail.

When a system reload occurs, a database discrepancy

between Meridian Mail and the Meridian 1 may result in the

message waiting indicator not reflecting the actual message

waiting status.

AML status

The AML commands used to determine the link status or to

place the link in a state will vary according to the software

release of X11 and I/O card type used.

X11 Release 17 or earlier X11 Release 18 or later

ENL ESDI n use: ENL AML n LYR2

DIS ESDI n use: DIS AML n LYR2

ENL CMS n use: ENL AML n LYR7

DIS CMS n use: DIS AML n LYR7

CON ESDI n use: EST AML n LYR2

DSC ESDI n use: RLS AML n LYR2

ACMS n use: ENL AML n ACMS

use: ENL AML n AUTO (MSDL)

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Seagate ST3390N Guía de instalación Pagina 317

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