Re: [storm] iSCSI MIB: Functional enhancements proposal
"Prakash Venkatesen, ERS-HCLTech" <prakashvn@hcl.com> Thu, 04 October 2012 06:58 UTC
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From: "Prakash Venkatesen, ERS-HCLTech" <prakashvn@hcl.com>
To: "storm@ietf.org" <storm@ietf.org>
Date: Thu, 04 Oct 2012 12:28:36 +0530
Thread-Topic: [storm] iSCSI MIB: Functional enhancements proposal
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Cc: "Prakash Venkatesen, ERS-HCLTech" <prakashvn@hcl.com>
Subject: Re: [storm] iSCSI MIB: Functional enhancements proposal
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We have posted a new version of the iSCSI MIB draft:
http://www.ietf.org/internet-drafts/draft-ietf-storm-iscsimib-03.txt" rel="nofollow">http://www.ietf.org/internet-drafts/draft-ietf-storm-iscsimib-03.txt
[1] Added NOP counters at iSCSI session scope for heartbeat tracking
[2] Added port number to the iscsiTgtLoginFailure and iscsiIntrLoginFailure notifications, and to the last failure info in iscsiInitiatorAttributesEntry
[3] Added description string to the iSCSI portal
[4] Added iscsiInstSsnTgtUnmappedErrors to support "Target Unmapped" session failure reporting in the iscsiInstSessionFailure notification. We could not identify a good reference for this object in the other iSCSI drafts. We have left out the reference clause for this object
[6] Added iscsiTgtLogoutCxnClosed and iscsiTgtLogoutCxnRemoved which maintain the count of Logout Command PDUs received by the target with reason codes 1 and 2 respectively. We hope this addresses the request [6] and conforms to the iSCSI Cons draft Section 11.14.1, Reason Code
[5] For each IscsiPortalAttributesEntry, there’s an iscsiTgtPortalAttributesEntry with the target port, and the initator portal’s port will be dynamic and will have to be found in the connection info. Sections 6.4 through 6.6 explain this one. So, there is no need to add a port number to iscsiPortalAttributesEntry
[A] to [H]
Prakash
________________________________________
From: Black, David [david.black@emc.com]
Sent: Saturday, September 15, 2012 6:36 AM
To: storm@ietf.org
Subject: [storm] iSCSI MIB: Functional enhancements proposal
and to the last failure info in iscsiInitiatorAttributesEntry.
[3] Add a description string to the iSCSI portal:
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A UTF-8 string, determined by the implementation to
describe the iSCSI portal. When only a single instance
is present, this object may be set to the zero-length
string; with multiple iSCSI portals, it may be used in
an implementation-dependent manner to describe the
respective portal, and could include information such as
HBA model, description and version or software driver and
version."
logouts caused by timeouts from implicit logouts caused by other reasons.
a single summary with a count would be appropriate for each notification type).
[B] RowPointer or other connection to transport state as part of
iscsiInstanceSsnErrorStatsEntry (can be found indirectly in current structure).
[C] Support for reporting more than two digest algorithms (only one is standardized).
[D] Additional list of authentication methods for negotiation (already available based
on reporting of authorized entities).
[E] Additional support for mutual authentication (check the MIBs at both ends instead).
[F] Support for digest provisioning at the iSCSI node level (use iSCSI portal instead).
[G] Additional session reporting, including digest, error recovery level, session type
and additional counters for missing PDUs, data in PDUs, data out PDUs, async PDUs.
[H] Report initial remote IP address and port for connections in addition to actual
IP address and port - this would be for situations in which a redirection has
occurred.
[I] Report list of discovered targets (out of scope for this MIB).
--David
----------------------------------------------------
David L. Black, Distinguished Engineer
EMC Corporation, 176 South St., Hopkinton, MA 01748
+1 (508) 293-7953 FAX: +1 (508) 293-7786
david.black@emc.com Mobile: +1 (978) 394-7754
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- [storm] iSCSI MIB: Functional enhancements propos… Black, David
- Re: [storm] iSCSI MIB: Functional enhancements pr… Black, David
- Re: [storm] iSCSI MIB: Functional enhancements pr… Mark Bakke
- Re: [storm] iSCSI MIB: Functional enhancements pr… Prakash Venkatesen, ERS-HCLTech