T10000 - Solaris[TM] Unable to Configure T10K 4GB Tape Drive When Directly Connected

Asset ID:	1-72-1016360.1
Update Date:	2012-07-30
Keywords:

Solution Type Problem Resolution Sure

Solution 1016360.1 : T10000 - Solaris[TM] Unable to Configure T10K 4GB Tape Drive When Directly Connected

Applies to:

Sun StorageTek T10000A Tape Drive - Version Not Applicable and later
Sun StorageTek T10000B Tape Drive - Version Not Applicable and later
All Platforms
Checked for relevance on 30-July-2012.

Symptoms

Solaris[TM] unable to configure T10000 4GB tape drive unknown topology message in messages log.

Changes

{CHANGE}

Cause

{CAUSE}

Solution

Resolution
T10K - Solaris Unable to Configure T10K 4GB Tape Drive When Directly Connected.
The T10000 4Gb drive only supports N to N port, and N to F port, it does not support FC-AL loop.
The Solaris leadville driver only supports N to F port, and FC-AL so a Fibre switch is a requirement to connect to a T10K 4Gb tape drive.

HP-UX and AIX do support N to N port direct connection, although it is recommended that whichever OS is to be connected that a fibre switch is used.

Additional Information
Direct connected:

Current supported Interface Specifications:

T10k-2gb FCP (SCSI) protocol
1. N-to-N port connections, i.e. Direct connect, HBA N-port directly connected to T10k N-port.
2. N-to-F port connections, i.e. Switch connected, Switch F-port directly connected to T10k N-port.
3. NL-to-NL port connections, i.e. Private Loop, HBA NL-port to T10k NL-port via Loop port Hub or not.
4. NL-to-FL port connections, i.e. Public Loop, Switch FL-port to T10k NL-port via Loop port Hub or not.

T10k-4gb FCP (SCSI) protocol
1. N-to-N port connections, i.e. Direct connect, HBA N-port directly connected to T10k N-port.
2. N-to-F port connections, i.e. Switch connected, Switch F-port directly connected to T10k N-port.
See Note 1.

T10k-2gb FICON protocol
1. N-to-N port connections, i.e. Direct connect, HBA N-port directly connected to T10k N-port.
2. N-to-F port connections, i.e. Switch connected, Switch F-port directly connected to T10k N-port.
See Note 2.

T10k-4gb FICON protocol
1. N-to-N port connections, i.e. Direct connect, HBA N-port directly connected to T10k N-port.
2. N-to-F port connections, i.e. Switch connected, Switch F-port directly connected to T10k N-port.

Legend:
NOTE 1: The T10k-4gb drive utilizes a Qlogic In-line Credit Extender (ICE) chip that gives it the ability to support up to 600 Buffer to Buffer credits to support long distance up to 100km. However it does NOT support Loop mode.

NOTE 2: The FICON protocol does not supportLoop mode, regardless of what the drive hardware supports.

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