I understand that a few months ago, before I attained membership
in this august group, there was quite a discussion going on
regarding Informix mirroring versus hardware mirroring. Sorry
I missed it.
We're having a bit of fun on our own. Informix mirroring is NOT
working for us. If either the primary or the mirror drive goes
offline, OLE will soon stop. He will continue to function until
it's time to do a checkpoint. Then STUCK CITY. Tbstat shows
"CKPT REQ". We shutdown OLE with "tbmode -ky", shutdown hp-ux,
reseat the edge connector on the drive, and bring the system back
up. Whatever transactions happened till the checkpoint was
reguested get committed during the restart.
Yes, we've replaced the edge connectors, so now the drives don't
go offline, BUT (perhaps you would agree) THAT'S NOT THE POINT.
What if irrepairable harm should befall one of the drives?
We're running 5.01 on an HP9000/842s. The drives in question
are all on the same SCSI chain. The fact that one drive might
be offline does not affect hp-ux operations anywhere else in
Informix is trying to help, but they haven't gotten anywhere.
Are we the ONLY ones experiencing this?
I'm off for a long Memorial Day holiday. Back Wednesday
Bethel College & Seminary phone: (612) 638-6414
3900 Bethel Drive fax: (612) 638-6001
St. Paul, MN 55112
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just wait until it's free. -- Gary Bauer