Shadow server operations can display the following
status messages on the system console (OPA0) and on terminals enabled
to receive operator messages.
Shadow server messages are always informational
messages and include the prefix %SHADOW_SERVER-I-SSRVmessage-abbreviation. The following example includes
the OPCOM banner and the shadow server message to illustrate what
the messages look like when they are output to the console:
%%%%%%%%%%% OPCOM 24-MAR-1990 15:01:30.99 %%%%%%%%%%%
(from node SYSTMX at 24-MAR-1990 15:01:31.36)
Message from user SYSTEM on SYSTMX
%SHADOW_SERVER-I-SSRVINICOMP, shadow server has completed initialization. |
The following messages are returned by the shadow
server in response to shadow set operations. Several of the messages
refer to a copy thread number; this is a unique
identifier denoting a copy or merge operation. The messages in this
section are listed in alphabetical order by message abbreviation.
For simplicity, the messages shown here do not include the SHADOW_SERVER-I-
prefix.
SSRVCMPFCPY, completing copy operation
on device _virtual-unit: at LBN: LBN-location, ID number: copy-thread-number
Explanation: The
copy operation has completed.
User Action: None.
SSRVCMPMRG, completing merge operation
on device _virtual-unit: at LBN: LBN-location, ID number: copy-thread-number
Explanation: The
merge operation has completed.
User Action: None.
SSRVCOMPLYFAIL, still out of compliance
for per-disk license units, new shadow members may be immediately
removed
Explanation: The
number of shadow set members on the node has exceeded the number of
VOLSHAD-DISK license units for more than 60 minutes. Attempts to bring
the node into compliance by removing unlicensed members from their
shadow sets have failed. If any new members are mounted, they might
be removed immediately.
User Action: Ensure
that the number of VOLSHAD-DISK license units on each node is equal
to the number of shadow set members mounted on that node. If necessary,
dismount shadow set members until the number of mounted members equals
the number of VOLSHAD-DISK license units loaded on the node. If you
require more VOLSHAD-DISK license PAKs, contact a Digital support
representative.
SSRVINICOMP, shadow server has
completed initialization
Explanation: The
shadow server has been initialized at boot time.
User Action: None.
SSRVINICPY, initiating copy operation
on device _virtual-unit: at LBN: LBN-location, I/O Size: number-of-blocks blocks, ID number: copy-thread-number
Explanation: A
copy operation is beginning on the shadow set whose virtual unit number
is listed in the message.
User Action: None.
SSRVINIMRG, initiating merge operation
on device _virtual-unit: at LBN logical-block-number, I/O Size: number-of-blocks blocks, ID number: copy-thread-number
Explanation: A
merge operation is beginning on the shadow set. The merge can occur
after a copy operation has completed.
User Action: None.
)
SSRVINIMMRG, initiating minimerge
operation on device _virtual-unit: at LBN LBN-location, I/O size: number-of-blocks blocks, ID number: copy-thread-number
Explanation: A
shadowing minimerge is beginning on the device indicated. The message
identifies the minimerge with the name of the shadow set virtual unit,
and the LBN location of the minimerge, the size of the I/O request
(in blocks), and the ID number of the copy thread. For example:
%SHADOW_SERVER-I-SSRVINIMMRG, initiating minimerge operation on device _DSA2: at LBN 0, I/O size: 105 blocks, ID number: 33555161 |
User Action: None.
SSRVINSUFPDL, insufficient per-disk
license units loaded,shadow set member(s) are removed in number minutes
Explanation: The
number of shadow set members mounted exceeds the number of VOLSHAD-DISK
license units loaded on the node. If this condition is not corrected
before the number of minutes displayed in this message has elapsed,
Volume Shadowing removes unlicensed members from shadow sets in an
attempt to make the node compliant with the number of loaded VOLSHAD-DISK
license units.
User Action: Dismount
shadow set members until the number of mounted members is equal to
the number of VOLSHAD-DISK license units on the node.
SSRVNORMAL, successful completion
of operationon device _virtual-unit: at
LBN LBN-location, ID number: copy-thread-number
Explanation: The
copy or merge operation has completed.
User Action: None.
SSRVRESCPY, resuming copy operation
on device _virtual-unit: at LBN: logical-block-number I/O size: number-of-blocks blocks, ID number: copy-thread-number
Explanation: A
copy operation is resuming. The message identifies the copy with a
unique sequence number, the name of the shadow set virtual unit, the
LBN location of the copy, and the size of the I/O request (in blocks).
For example:
%SHADOW_SERVER-I-SSRVRESFCPY, resuming Full-Copy copy sequence number
16777837 on device _DSA101:, at LBN 208314 I/O size: 71 blocks |
User Action: None.
SSRVSPNDCPY, suspending operation
on device _virtual-unit: at LBN: logical-block-number, ID number: copy-thread-number
Explanation: A
copy operation is being interrupted before it completes. (If a crash
occurs during a copy operation, a minimerge assist can interrupt the
copy operation to resolve inconsistencies. The shadowing software
can resume the copy operation when the minimerge completes.) The following
message identifies the copy operation with the name of the shadow
set virtual unit, the LBN location of the copy, and a unique ID number.
%SHADOW_SERVER-I-SSRVSPNDCPY, suspending operation on device _DSA101:. at LBN: 208314, ID number: 16777837 |
User Action: None.
SSRVSPNDMMRG, suspending minimerge
operation on device _virtual-unit: at LBN: logical-block-number ID number: copy-thread-number
Explanation: A
minimerge is interrupted before it completes. The message identifies
the minimerge with the name of the shadow set virtual unit, the LBN
location of the minimerge, and a unique ID number. For example:
%SHADOW_SERVER-I-SSRVSPNDMMRG, suspending minimerge operation on device _DSA101:. at LBN: 3907911, ID number: 16777837 |
User Action: None.
SSRVSPNDMRG, suspending merge
operation on device _virtual-unit: at LBN: LBN-location, ID number: copy-thread-number
Explanation: A
merge operation has been suspended while the shadow set undergoes
a copy operation.
User Action: None.
SSRVTRMSTS, reason for termination
of operation on device: _virtual-unit:,
abort status
Explanation: This
message always accompanies the SSRVTERM message to provide further
information about the copy termination.
User Action: Possible
actions vary depending on the reason for the error. You might need
to check and repair hardware or restart the copy operation.
SSRVTERMCPY, terminating operation
on device: _virtual-unit:, ID number:copy-thread-number
Explanation: The
copy thread is aborting. See the accompanying SSRVTRMSTS message for
more information.
User Action: None.
SSRVTERMMRG, terminating operation
on device: _virtual-unit:, ID number:copy-thread-number
Explanation: The
merge thread is aborting. See the accompanying SSRVTRMSTS message
for more information.
User Action: None.
SSRVTERMMMRG, terminating operation
on device: _virtual-unit:, ID number: copy-thread-number
Explanation: The
minimerge thread is aborting. See the accompanying SSRVTRMSTS message
for more information.
User Action: None.
