Subject: Re: Changing block size on SCSI disks
To: Johan Danielsson <>
From: Bob Nestor <>
List: tech-kern
Date: 05/26/2002 13:47:55
On Sunday, May 26, 2002, at 01:03 PM, Johan Danielsson wrote:

> Bob Nestor <> writes:
>> If nobody objects it would be nice to have the changes committed as
>> there are very few other options out there for doing this.
> I have no real objections, but the documentation should mention that
> not all drives like to be formatted in this manner (and may stop
> working).

I'll add that to the man page but as far as I could tell this would seem 
to be a violation of the Mandatory command set.  If the drive enters a 
Degraded Mode of operation as a result of an improper Format command 
(for that device), the standard recovery is to issue a proper Format 
command.  At least that's what all the documentation I read seemed to 
say, and the Degraded Mode drives I had on hand did recover when I did 
this.  Anyway, the code I added doesn't specify this information in the 
Format command unless the user provides a blocksize parameter.