> > I do not think there is any relation between I/O > errors and system > device discovery. The thing to understand is what > events are > happening in your SAN which result in I/O errors. Are > you doing > anything or causing any events or the errors are > happening on their > own.
> If they are happening on their own then what is > the frequency of > the errors (is there any relation to the load e.g. > the error happens > 3 min. after the 1st I/O). They (i/o err) happen randomly at different times. Sometimes if we are at work monitoring backups, most times when automated backups are scheduled over night. I fairly confident the errors are related system discovery/probe because this has happened in the past ( fixed by disabling "auto-discovery", and bus monitoring apps), and because the backups were stable until switching to this new system. > > Also which driver is generating I/O errors ? (perhaps > a clipping of / > var/adm/messages will help). And what is the system > configuration ? > i.e. OS level, SAN patch level, 3rd party software, > HBA, switch etc ? There are no errors on the system, the errors are reported from the backup software. HP tells this error happens when the tape device is interrupted. The system has been patched including SAN patches, i'll have to get those a little later. But I downloaded SAN related patch two weeks ago. We have Sun's Qlogic HBA's, we were going to try and use Qlogics drivers, but the qlc driver seems to work, and was suggested over the qlogic. Besides Data Protector there isn't any other software installed, umm... maybe someone put the qlogic san software on, I'll have to look. Also, since this is somewhat "normal" behavior the switch(es) and libraries don't report any problems. > > Sumit Thanks, Tom de This message posted from opensolaris.org _______________________________________________ storage-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/storage-discuss
