Re: Problem with 2.6 kernel and lots of I/O

From: Kyle Moffett
Date: Mon Jun 20 2005 - 23:20:18 EST

On Jun 20, 2005, at 19:54:23, Roy Keene wrote:
But the problem doesn't occur with the "local" end, it's with the "recieving" end (which may be the same thing, but mostly it's not, since I tend to reboot the secondary node more).

The problem occurs on the node running `nbd-server' in userspace and not nessicarily having "nbd" support.

"nbd1" is a remote nbd device to the secondary server, which then becomes highly unusable. I'm not sure what you're attempting to convey to me, as the server that is running raid1_resync (reading from nbd0, which cooresponds with a local nbd-client binding) is perfectly usable in the example I gave, but the remote node is not...

Oh! Sorry, I got your systems confused. In that case, you are definitely
having a SCSI RAID controller or driver issue. Please forgive the confusion.

Kyle Moffett

There are two ways of constructing a software design. One way is to make it so simple that there are obviously no deficiencies. And the other way is to make it so complicated that there are no obvious deficiencies.
-- C.A.R. Hoare

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