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Brocade LUN access issues with ISL error

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Category:
fabric-interconnect-and-management-switches
Specialty:
san
Last Updated:

Applies to

Brocade

Issue

Experiencing LUN access disk link error disconnect issues with ISL switch port error
 
Example:
sfpshow <port>
RX Power:    -3.3    dBm (350 uW)
TX Power:    -0.5    dBm (750 uW)
porterrshow
shows "link fail" and "loss sig" errors on port
 
errdump
ISL link and messages: BrocadeG720, Multi RDY/Frame Loss detected on Slot 0, Port  m_rdy(0x1)/m_frame(0x0). Link Reset
CHASSIS | PORT, WARNING, BrocadeG720,  Link Reset on Port vc_no=5 crd(s)lost=16 auto trigger
 
Host I/O messgaes:
DISK OPERATION ERROR
LINK ERROR
PATH HAS RECOVERED
PATH HAS FAILED
DISK OPERATION ERROR
PATH HAS RECOVERED
DISK OPERATION ERROR
LINK ERROR
PATH HAS FAILED

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