> > > On some systems, reboot is required? to access disk from SAN device. > This turned out to be a zoning issue. Although I had properly created the zone, I had to add it to our "Prod" configuration to make it live. Once that was done, the virtual tape library was recognized right away: kernel: Vendor: HP Model: MSL G3 Series Rev: EL21 kernel: Type: Medium Changer ANSI SCSI revision: 03 kernel: scsi 0:0:0:0: Attached scsi generic sg0 type 8 kernel: Vendor: HP Model: Ultrium 4-SCSI Rev: ED41 kernel: Type: Sequential-Access ANSI SCSI revision: 03 kernel: scsi 0:0:1:0: Attached scsi generic sg1 type 1 kernel: st: Version 20070203, fixed bufsize 32768, s/g segs 256 kernel: st 0:0:1:0: Attached scsi tape st0 kernel: st0: try direct i/o: yes (alignment 512 B) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20100223/c558634a/attachment-0005.html>