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ci-server-engineer/.claude/skills/history-management/SKILL.md
cliu e7b4cd1f3f Fix aggregation source priority (ISS-040) and document aggregate retrieval 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-01 14:03:45 +10:00

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history-management CI Server R1.03 HISTORY Service and item history. Use when the user wants to store item values in history (item storage group, storage group item, Scan/Time, Event/Item, Event/Event, Direct, scan interval, averaging, quality codes, priority), set rollover interval, life time or retention of history, use aggregation (30 minutes, hourly, shift, daily, weekly, monthly, yearly maximum / minimum / average / integral / standard deviation / counter / differential summation, ithsag.sup, completion notification), read history (ITEM_HISTORY, GROUP_NAME, INTERPOLATION, ATTRIBUTE), load history from CSV (ithloahis), force a rollover, check storage groups and units (hisdbg, his_units, history files h*.his), repair or recover history (hisrep, hisrecover), or archive and retrieve history (has.sup, hasman, hasdbg, tape, DVD, disk archive). Sources IM 36K10L20-01EN, IM 36K10C40-01EN, IM 36K10L35-01EN.

History management (R1.03)

Background: knowledge/manuals/IM36K10C40-01EN.md (storage group fields, types, aggregation, archive, reading history), IM36K10L20-01EN.md (history manager, files, hisdbg, utilities, archive administration), IM36K10L35-01EN.md (item history processes and setup files).

Rules:

  • Run system-check first; follow the user's chosen way of working.
  • Deleting a storage group, a unit or unknown files deletes history for good. Life time changes can delete old units at the next rollover. Only with the user's approval, and never on production data without a backup.
  • A new storage group stores nothing until CI Server is restarted (ISS-006): plan the restart with the user (admin).
  • has.sup / ithsag.sup / ith*.sup changes need admin rights and a restart: hand them to the user (skill portal-setup, task change-setup-file.md).
Task File Status
Create item storage groups (Event/Item, Scan/Time, Aggregation) and add items by quick load; remove them tasks/storage-groups.md verified
Read history with dssqld (ITEM_HISTORY, per group); aggregates tasks/storage-groups.md §4 verified
Load history from CSV (ithloahis); which time stamps are accepted skill system-management, task load-history.md verified
Check groups, units, clients, rollover with hisdbg tasks/history-checks.md verified
Archive / retrieve, hasdbg C40 summary §4, L20 summary §5 from docs (no archive device)
Repair and recovery (hisrep, hisrecover, isfrename, hiswrn) L20 summary §4 from docs
Reading history from classes, reports, ODBC C40 summary §5 from docs (phases 6, 11)