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wrong messges in daemon.log file

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leyearn
Regular Advisor

wrong messges in daemon.log file

Feb 13 15:09:33 yj8201 ASE: mc_8201 Agent Info: AM reports reservation reset on
/dev/rrzc3b

there are so many wrong messages in file daemon.log

what's wrong with our system?
2 REPLIES
Joris Denayer
Respected Contributor
Solution

Re: wrong messges in daemon.log file

Hi,

You have an old V4 cluster.
This is logged on member yj2801. However, this is logged by the aseagent of the other member mc_8201.
member mc_8201 has a diskservice that uses rzc3b. A SCSI reservation is set on this device in order to protect it for IO from other members. In V4, no concurrent IO of different hosts is supported.

The Availibility Manager on mc_8201 has detected that the Reservation was reset. This occurs if a SCSI bus reset is applied on the shared SCSI bus. Probably because an other member rebooted. Another possibility is that for certain hw reasons, a scsi bus reset was givven in order to reset all the devices.

What happens now is that mc_8201 will issue again a SCSI Reservation to all the devices, configured for that particular diskservice.

So, this is not a real problem.

I suppose that the aselogger is configured to log also "INFORMATIONAL" messages. This generates a lot of info in the daemon.log.

You might change this with asemgr.

Regards

Joris
To err is human, but to really faul things up requires a computer
leyearn
Regular Advisor

Re: wrong messges in daemon.log file

Feb 21 14:53:17 yj8201 ASE: mc_8202 Agent Info: AM reports reservation reset on
/dev/rrzg3b
Feb 21 14:53:18 yj8201 ASE: mc_8201 Agent Info: AM reports reservation reset on
/dev/rrzf3b
Feb 21 14:53:18 yj8201 ASE: mc_8201 Agent Info: AM reports reservation reset on
/dev/rrzb2b
Feb 21 14:53:18 yj8201 ASE: mc_8202 Agent Info: AM reports reservation reset on
/dev/rrz2b
Feb 21 14:53:18 yj8201 ASE: mc_8201 Agent Info: AM reports reservation reset on
/dev/rrzd2b
Feb 21 14:53:18 yj8201 ASE: mc_8202 Agent Info: AM reports reservation reset on
/dev/rrz3b
Feb 21 14:55:54 yj8201 ASE: mc_8201 Agent Info: AM reports reservation reset on
/dev/rrzd1b
Feb 21 14:55:54 yj8201 ASE: mc_8202 Agent Info: AM reports reservation reset on
/dev/rrz1b
Feb 21 14:55:55 yj8201 ASE: mc_8201 Agent Info: AM reports reservation reset on
/dev/rrzb1b
Feb 21 14:55:55 yj8201 ASE: mc_8202 Agent Info: AM reports reservation reset on
/dev/rrzc1b
Feb 21 14:55:55 yj8201 ASE: mc_8201 Agent Info: AM reports reservation reset on
/dev/rrzf3b
Feb 21 14:55:55 yj8201 ASE: mc_8201 Agent Info: AM reports reservation reset on
/dev/rrzb2b

why are all the device files " b "partition

/dev/rrzg3b
/dev/rrzf3b
/dev/rrzb2b
/dev/rrzd2b
/dev/rrz2b