The SLD SLACVX Cluster "How To Fix" -- DCSC page

DCSC

• First, check to see if DCSC is running on SLACAX, the master node:

SLACAX> cart sho dev

• If this shows DCSC as being OFFLINE then it needs to be restarted here first. Before restarting DCSC we may want to shut it down on the other nodes too. Do:

SLACAX> sho sys

• If this returns lots (more than 30) of processes with names that begin with NET_ then we need to stop DCSC everywhere before restarting it on SLACAX. Do this using SYSMAN:

SLACAX> sysman
SYSMAN> set e/nod=(sldb_nodes,slacvx,axp_nodes) 
%SYSMAN-I-ENV, current command environment:
        Individual nodes: SLDB1,SLDB2,SLDB3,SLDB4,SLDB5,SLACVX,SCSA2,SLDA1,
        Individual nodes: SLDA3,SLDA4,SLDA5,SLDA6,SLACAX
        Username SYSTEM_MJW   will be used on nonlocal nodes

SYSMAN> do @sys$startup:dcsc$shutdown

• When this finishes, stop all the NET_ processes on SLACAX using the STOP command:

SLACAX> stop/id=[process id from the sho sys command]

• Now restart DCSC on SLACAX:

SLACAX> set term/bro
SLACAX> repl/ena=tape
SLACAX> @sys$startup:dcsc$startup

• Watch the opcom messages until all of the drives have been recovered and DCSC is ONLINE. When DCSC is online check it out again:

SLACAX> cart sho dev

• If things are not working, go to the beginning and start over. If things are working, restart DCSC on the other nodes of the cluster

SLACAX> sysman
SYSMAN> set e/nod=(sldb_nodes,slacvx,slda1,scsa2,slda3,slda4,slda5,slda6) 
%SYSMAN-I-ENV, current command environment:
        Individual nodes: SLDB1,SLDB2,SLDB3,SLDB4,SLDB5,SLACVX,SCSA2,SLDA1,
        Individual nodes: SLDA3,SLDA4,SLDA5,SLDA6,SLACAX
        Username SYSTEM_MJW   will be used on nonlocal nodes

SYSMAN> do @sys$startup:dcsc$startup

Unix silo commands:

% silo q lock vol all                                       
5005 Processing Query_Lock_Vol function
30 13:23:35                       Lock Status
 Identifier    Lock     Lock      Pending   Status         User Identifier
               Id       Duration
  QF2203       6865     597448    0         in_use         SLDACQ
  QF2204       6865     597444    0         in_use         SLDACQ
  RI0000       6865     67749482  0         in_use         SLDACQ
  QI0000       28994    34243862  0         in_use         SLACAX
  QC2774       27779    1856      0         in_use         FARMBOSS
  QA1807       6217     242       0         in_use         FARMBOSS
  QG0631       9975     147       0         in_use         FARMBOSS
  QC2776       10568    114       0         in_use         FARMBOSS
  QC2777       18511    98        0         in_use         FARMBOSS
  QC2778       28150    2         0         in_use         FARMBOSS
5010 Query lock volume command complete

%silo q lock drive all
5005 Processing Query_Lock_Drive function
30 13:24:29                       Lock Status
 Identifier    Lock     Lock      Pending   Status         User Identifier
               Id       Duration
  0121         6865     597508    0         in_use         SLDACQ
  0123         6865     597504    0         in_use         SLDACQ
5010 Query lock drive command complete