Thecus N2810 User Manual page 85

Max Connections
The maximum number of iSCSI connections.
Error Recovery Level
The Error Recovery Level (ERL) is negotiated during a leading iSCSI connection
login in traditional iSCSI (RFC 3720) and iSER (RFC 5046).
ERL=0: Session Recovery
ERL=0 (Session Recovery) is triggered when failures within a command,
within a connection, and/or within TCP occur. This causes all of the previous
connections from the failed session to be restarted on a new session by
sending a iSCSI Login Request with a zero TSIHRestart all iSCSI connections
on any failure.
ERL=1: Digest Failure Recovery
ERL=1, only applies to traditional iSCSI. For iSCSI/SCTP (which has its own
CRC32C) and both types of iSER (so far), handling header and data checksum
recovery can be disabled.
ERL=2: Connection Recovery
ERL=2, allows for both single and multiple communication path sessions
within a iSCSI Nexus (and hence the SCSI Nexus) to actively perform
realligence/retry on iSCSI ITTs from failed iSCSI connections. ERL=2 allows
iSCSI fabrics to take advantage of recovery in all regards of transport level
fabric failures, and in a completely OS independent fashion (i.e. below the host
OS storage stack).
initialR2T
InitialR2T is a setting that only really matters over high-latency WAN connections
and perhaps in some exotic situations with synchronous writes to very, very fast
storage.
iSCSI CRC/Checksum
To enable this option, the initiator can connect with "Data digest" and "Header
digest".
Emulate Write Cache
To enable this option, the performance will increase. .
Modify/Remove iSCSI Target
To modify or remove iSCSI target on the current RAID volume, follow the steps
below:
1. under the iSCSI List, click on desired iSCSI volume you like to modify or
remove.
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