小知识：如何修改TFA下的OSW数据保留时间

在Oracle社区可以搜索到这样的问题：

How to change oswatcher retention when running under TFA

但很遗憾该问题目前也没有给出确切答复。

其实提问者已经给出了修改方法：

tfactl stop oswbb

tfactl start oswbb 15 168

只是不确认这样的修改在下次主机重启后是否还生效？下面来验证一下：

首先，默认的osw采集间隔是30s，保存时间为48h：

[grid@db01 ~]$ ps -ef|grep osw
grid      8378     1  0 Jun27 ?        00:01:11 /bin/sh ./OSWatcher.sh 30 48 NONE /opt/app/grid/oracle.ahf/data/repository/suptools/db01/oswbb/grid/archive
grid      8961  8378  0 Jun27 ?        00:00:27 /bin/sh ./OSWatcherFM.sh 48 /opt/app/grid/oracle.ahf/data/repository/suptools/db01/oswbb/grid/archive
grid     11868 11846  0 23:34 pts/0    00:00:00 grep --color=auto osw

我们将其修改为采集间隔15s，保存时间为168h(也就是7天)：

tfactl stop oswbb

tfactl start oswbb 15 168

[grid@db01 ~]$ tfactl stop oswbb
Stopped OSWatcher
[grid@db01 ~]$ tfactl start oswbb 15 168
Starting OSWatcher
[grid@db01 ~]$ ps -ef|grep osw
grid     12123     1  0 23:34 pts/0    00:00:00 /bin/sh ./OSWatcher.sh 15 168 NONE /opt/app/grid/oracle.ahf/data/repository/suptools/db01/oswbb/grid/archive
grid     12152 11846  0 23:34 pts/0    00:00:00 grep --color=auto osw
[grid@db01 ~]$ ps -ef|grep osw
grid     12123     1  0 23:34 pts/0    00:00:00 /bin/sh ./OSWatcher.sh 15 168 NONE /opt/app/grid/oracle.ahf/data/repository/suptools/db01/oswbb/grid/archive
grid     12241 12123  0 23:34 pts/0    00:00:00 /bin/sh ./OSWatcherFM.sh 168 /opt/app/grid/oracle.ahf/data/repository/suptools/db01/oswbb/grid/archive
grid     12346 11846  0 23:34 pts/0    00:00:00 grep --color=auto osw

下面我们将主机重启，验证是否重启后还生效：

[root@db01 ~]# reboot
[grid@db01 ~]$ uptime
 23:47:45 up 9 min,  1 user,  load average: 0.45, 0.86, 0.69
[grid@db01 ~]$ ps -ef|grep osw
grid      5976  5940  0 23:47 pts/0    00:00:00 grep --color=auto osw

遗憾的看到，重启后osw压根儿都没有自启动，更别提保留什么配置了..

查询下tfactl toolstatus信息如下：

[grid@db01 ~]$ tfactl toolstatus

.------------------------------------------------------------------.
|                    TOOLS STATUS - HOST : db01                    |
+----------------------+--------------+--------------+-------------+
| Tool Type            | Tool         | Version      | Status      |
+----------------------+--------------+--------------+-------------+
| Development Tools    | orachk       |   19.3.0.0.0 | DEPLOYED    |
|                      | oratop       |       14.1.2 | DEPLOYED    |
+----------------------+--------------+--------------+-------------+
| Support Tools Bundle | darda        | 2.10.0.R6036 | DEPLOYED    |
|                      | oswbb        |        8.3.2 | NOT RUNNING |
|                      | prw          | 12.1.13.11.4 | NOT RUNNING |
+----------------------+--------------+--------------+-------------+
| TFA Utilities        | alertsummary |   19.3.0.0.0 | DEPLOYED    |
|                      | calog        |   19.3.0.0.0 | DEPLOYED    |
|                      | dbcheck      |   18.3.0.0.0 | DEPLOYED    |
|                      | dbglevel     |   19.3.0.0.0 | DEPLOYED    |
|                      | grep         |   19.3.0.0.0 | DEPLOYED    |
|                      | history      |   19.3.0.0.0 | DEPLOYED    |
|                      | ls           |   19.3.0.0.0 | DEPLOYED    |
|                      | managelogs   |   19.3.0.0.0 | DEPLOYED    |
|                      | menu         |   19.3.0.0.0 | DEPLOYED    |
|                      | param        |   19.3.0.0.0 | DEPLOYED    |
|                      | ps           |   19.3.0.0.0 | DEPLOYED    |
|                      | pstack       |   19.3.0.0.0 | DEPLOYED    |
|                      | summary      |   19.3.0.0.0 | DEPLOYED    |
|                      | tail         |   19.3.0.0.0 | DEPLOYED    |
|                      | triage       |   19.3.0.0.0 | DEPLOYED    |
|                      | vi           |   19.3.0.0.0 | DEPLOYED    |
'----------------------+--------------+--------------+-------------'

Note :-
  DEPLOYED    : Installed and Available - To be configured or run interactively.
  NOT RUNNING : Configured and Available - Currently turned off interactively.
  RUNNING     : Configured and Available.

[grid@db01 ~]$

发现其中oswbb状态是“NOT RUNNING”，手工启动oswbb不加参数，发现已经是之前改过的配置：

[grid@db01 ~]$ tfactl start oswbb
Starting OSWatcher
[grid@db01 ~]$ ps -ef|grep osw
grid      8671     1  0 00:07 pts/0    00:00:00 /bin/sh ./OSWatcher.sh 15 168 NONE /opt/app/grid/oracle.ahf/data/repository/suptools/db01/oswbb/grid/archive
grid      8700  5940  0 00:07 pts/0    00:00:00 grep --color=auto osw

看来重启配置虽然不会丢失，但是oswbb没有自启动，需要手工启动。