Fibre Channel (SAN)

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Occasional Contributor
Posts: 5
Registered: ‎04-24-2006

Tape Drive and ISL ports increased Time BB_Credit_Zero

Fabric:

External Moderator
Posts: 4,855
Registered: ‎02-23-2004

Re: Tape Drive and ISL ports increased Time BB_Credit_Zero

Can they place please more accurately?

TechHelp24
Occasional Contributor
Posts: 5
Registered: ‎04-24-2006

Re: Tape Drive and ISL ports increased Time BB_Credit_Zero

On The ports (1BG interface on the client and brocade port is locked to 1GB) that my tape drives IBM 3590 drives are connected and on My ISL's the counter "Time BB_Credit_zero" = number of times that the buffer to buffer credits hit zero is in the 100's of thousands if not millions on some ports.The tape drives negotiate as FL_port.

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