Try querying your activity log as far back as you can go for any references to that volume. Its probably being detected as some sort of media fault by TSM. q actlog begind=-X search=volumeY Jack -----Original Message----- From: Mueller, Philip J. [mailto:[EMAIL PROTECTED]] Sent: Wednesday, June 13, 2001 3:14 PM To: [EMAIL PROTECTED] Subject: Disk volumes varying themselves offline or to a readonly status b y themselves I have recently implemented TSM v4.1.3 and have encountered a problem with my diskpool volumes. I currently have disk storage volumes in three locations: locally on the TSM server, NAS (network attached storage device), and on another network server. What is happening is that the storage volumes that are not local on the server are changing their status from read/write to readonly and/or varying themselves offline while the local volume has never mysteriously changed its' status. Initially, I suspected it might have had something to do with the NAS so I defined several volumes on other network servers only to have them do the same thing. I haven't been able to identify an event that might cause this to happen because it seems random. I have had them change their status within minutes of correcting up to a day or so. Any help would be greatly appreciated. Thanks in advance, Philip J. Mueller Information Systems Assistant Ralston Purina Company - Denver CO [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>