When the tape stops during writing it must backup and get the tape moving again before it can write to it. This is normal. I have seen this also on NetBackup and TSM. It is an internal hardware thing. This is very fast on a 3590 and very slow on other tape offerings.
-----Original Message----- From: Gerhard Rentschler [mailto:[EMAIL PROTECTED]] Sent: Tuesday, April 02, 2002 7:01 AM To: [EMAIL PROTECTED] Subject: Question about 3590 tape drives Hello, I observed some strange behaviour of a 3590-E1A tape drive. During a migrate operation from a disk pool to a sequential pool I watched the operator panel. There I could see that the device after a write operation did a locate followed by a read and then resumed writing. I observed this behaviour several times. Is there an explanation for this? I run TSM 4.1.2 on AIX 4.3.3 Best regards Gerhard ---- Gerhard Rentschler email: [EMAIL PROTECTED] Manager Central Servers & Services Regional Computing Center tel: ++49/711/6855806 University of Stuttgart fax: ++49/711/682357 Allmandring 30a D 70550 Stuttgart Germany