HP-UX iSCSI Software Initiator Support Guide (Edition 7)
CRC32C
• DataDigest
A data digest that can be negotiated during iSCSI login. The list of values that the DataDigest
key can accept are:
None
CRC32C
• AuthMethod
An authentication method that can be negotiated during iSCSI login. The list of values that
the AuthMethod key can accept are:
None
CHAP
The order of precedence of login key configuration is as follows:
• (a) iSCSI Target Address level
• (b) iSCSI Target level
• (c) Global level
Configuration of login keys at the Discovery target level is not possible, because Discovery targets
are not identified by iSCSI target names.
Configuration of login keys for Discovery target addresses does not involve defining the iSCSI
target names. For Operational targets (addresses), the target names should be defined.
NOTE: One or two login key values may be specified for each of the login keys listed above,
however, no more than two login key values can be specified for a login key.
A.1.1 Header and Data Digest Configuration Examples
Configure the HeaderDigest key with "None,CRC32C" as the value for all targets:
# iscsiutil -t headerdigest None CRC32C
Configure the DataDigest key with "CRC32C,None" as the value for a particular Discovery
Target Address which is already configured:
# iscsiutil -t datadigest CRC32C None -I 192.1.1.58 -M 2
Configure the DataDigest key with "CRC32C,None" as the value for an Operational Target:
# iscsiutil -t datadigest CRC32C None -T iqn.2003-11.com.
hp.stor:iSCSI.Storage
Configure the HeaderDigest key with "CRC32C" as the value for an Operational Target Address:
# iscsiutil -t headerdigest CRC32C -I 192.1.1.58 -M 2 -T
iqn.2003-11.com.hp.stor:iSCSI.Storage
Configure both the HeaderDigest and the DataDigest keys with "CRC32C" as the value for
an Operational Target Address:
# iscsiutil -t bothdigest CRC32C -I 192.1.1.58 -M 2 -T iqn.
2003-11.com.hp.stor:iSCSI.Storage
A.1.2 Authentication Method Configuration Examples
Configure the AuthMethod key with "CHAP,None" as the value for all Targets:
# iscsiutil -t authmethod CHAP None
Configure the AuthMethod key with "CHAP" as the value for a particular Discovery Target Address,
which is already configured:
# iscsiutil -t authmethod CHAP -I 192.1.1.58 -M 2
Configure the AuthMethod key with "None,CHAP" as the value for an Operational Target:
40 Login Key Configuration