Subject: Re: tape drive on siop causes pauses
To: Tracy Di Marco White <>
From: Manuel Bouyer <>
List: current-users
Date: 01/08/2001 16:41:49
On Sun, Jan 07, 2001 at 02:19:09PM -0600, Tracy Di Marco White wrote:
> We've put two different tape drives on our 53c810, a DLT drive and a
> DAT drive.  Both of them cause the system to pause for seconds to minutes
> at a time when we're trying to do backups (using tar).  I assume this
> isn't normal, but I don't know if it's a driver problem or something
> else.

Do you get messages from the kernel ?
When the machine is hung, can you still ping it ?
Can you run 'systat vm' and see if it keeps updating while the machine is
hung. Especially watch the number of interrupts.

Anyone else using siop with tape drives ? If so, with which kernel version ?

Manuel Bouyer, LIP6, Universite Paris VI.