=Comment: #0================================================= Emily J. Ratliff <ratliff.com> - 1. Feature Overview: Feature Id: [201591] a. Name of Feature: FCP - Performance Data collection & analysis (userspace) b. Feature Description The item comprises: a) facilities which provide performance relevant data (see below) at any time b) facilities which collect the data provided by a), then associate it with a time stamp and and store it for future processing - these facilities are configurable in regard of the type and amount of data collected for the purpose of reducing the amount of temporarily stored data. - when data is taken as samples, the sampling interval is configurable - collected data can be filtered by e.g masks for valid stack components (see below) before data is stored for further processing c) facilities which present the data stored by b) in a human readable way. d) Data presented shall contain enough information to make FCP performance data comparable with current capabilities of FICON data collections. Data collected comprises: a) Performance relevant data about stack components as Linux devices, SCSI LUNs and HBA and storage controller information b) Per stack component: current values of relevant measurements as throughput, utilization and other applicable measurements c) Statistical aggregations (min, max average, histogram) of data associated with I/O requests as size, latency per component and in total. 2. Feature Details: Sponsor: zSeries Architectures: s390x Arch Specificity: Purely Arch Specific Code Delivery Mechanism: Backport Category: zSeries Request Type: Package - Feature from Upstream d. Upstream Acceptance: Accepted Sponsor Priority 1 f. Severity: High IBM Confidential: no Code Contribution: IBM code g. Component Version Target: s390tools 1.7.x 3. Business Case This item will make possible to have a better understanding of the SCSI activities and performance of the customer system, being able afterward to better solve FCP issues regarding customer's SCSI workloads. 4. Primary contact at Red Hat: John Jarvis jjarvis 5. Primary contacts at Partner: Project Management Contact: Hans-Georg Markgraf, mgrf.com, Boeblingen 49-7031-16-3978 Technical contact(s): Gonzalo Muelas Serrano, gmuelas.com IBM Manager: Thomas Schwarz, t.schwarz.com
IBM is signed up to test and provide feedback.
This feature has corresponding feature requests. All three features are required to implement the requested functionality 201590 FCP - Performance Data collection (kernel) LTC 50339 RHBZ 475334 201729 FCP - Performance data collection (blktrace) LTC 50351 RHBZ 475548
closing as duplicate of BZ 477189 [LTC 5.4 FEAT] Pick up latest version of s390-tools since we plan to rebase s390utils in RHEL 5.4 *** This bug has been marked as a duplicate of bug 477189 ***