Nortel DMS-10 Series Installation, Operation And Maintenance Manual page 307

Table 7-81
DISK COMMAND xx ATTEMPTED WHILE DISK BUSY message
1 (continued)
4 4
Alarm Level:
two disks 100% = Critical
no processor switch
4 5
Customer-Selected Alarm Level
4 6
Other Alarm Indications
4 7
System Recovery Action
4 8
Craftsperson Activity:
BMC II BISYNC Operation, Administration, and Maintenance Guide BMCB001 and up
Section 060-INDP-410 Command and Message Guide 4-147
Parameters = aa bb cc(1) cc(2) cc(3) dd(1) dd(2)
aa =quantity of sectors involved, (in Hex).
bb =drive unit number, (in Hex).
cc(1) cc(2) cc(3) = logical sector number, (in Hex).
dd(1) dd(2) = buffer address, (in Hex).
z = indicates one of two redundant sides.
A = disk A B = disk B
Cause: output when the SCSI bus handler of the DPP
SCSI Interface is called to initiate a disk operation and a
previous SCSI bus cycle is still in progress.
Reason Code = 27
Corresponds to ERRMAP entry: DISK ER MESSAGE
System Default:
Type:MinorLevel:0
Type:Level:
Default:
Status Panel:MinorAudible:Minor
Customer-Selected
Status Panel:Audible:
Disk mode may go to non-redundant.
If disk mode went to non-redundant status, refer to the
Disk Drive Replacement Procedure in the Maintenance
Procedures Guide section.