From 097265b2d34f45f5bc7ace30ca12a41b9cc27b88 Mon Sep 17 00:00:00 2001 From: Yanxin Lu Date: Sat, 28 Mar 2026 21:26:17 -0700 Subject: [PATCH] vault backup: 2026-03-28 21:26:17 --- notes/Unraid Drive Replacement Plan.md | 119 ++++++++++++++++++ .../八极拳/陈氏太极拳/CTJ-lesson066.md | 14 +++ .../八极拳/陈氏太极拳/CTJ-lesson067.md | 21 ++++ 3 files changed, 154 insertions(+) create mode 100644 notes/Unraid Drive Replacement Plan.md create mode 100644 notes/martial_arts/八极拳/陈氏太极拳/CTJ-lesson066.md create mode 100644 notes/martial_arts/八极拳/陈氏太极拳/CTJ-lesson067.md diff --git a/notes/Unraid Drive Replacement Plan.md b/notes/Unraid Drive Replacement Plan.md new file mode 100644 index 0000000..4afe143 --- /dev/null +++ b/notes/Unraid Drive Replacement Plan.md @@ -0,0 +1,119 @@ +# Unraid Drive Replacement Plan + +## Risk Tolerance: 20% cumulative failure probability + +## Current Array (as of 2026-03-28) + +| Slot | Model | Serial | Age | Est. AFR | Notes | +|------|-------|--------|-----|----------|-------| +| Parity 1 | ST8000DM004 8TB SMR | ZCT2K65B | 5.3 yr | ~4.5% | Had 180 GP errors (cleared) | +| Parity 2 | ST8000DM004 8TB SMR | ZCT2K5PQ | 5.3 yr | ~3.5% | Had 19 GP errors (cleared) | +| Disk 1 | ST8000DM004 8TB SMR | ZCT2K3FF | 5.3 yr | ~2.75% | Same batch as parity drives | +| Disk 2 | ST8000DM004 8TB SMR | ZCT2K51K | 5.3 yr | ~2.75% | 1 CRC error | +| Disk 3 | ST8000DM004 8TB SMR | ZCT3XAEJ | 4.8 yr | ~3.5% | Had 10 GP errors, 2 CRC, 72K load cycles | +| Disk 4 | WD40EFRX 4TB CMR | WD-WCC7K2YF4TDJ | 6.6 yr | ~2.5% | Pristine SMART, lowest priority | +| Disk 5 | ST8000DM004 8TB SMR | ZR14W632 | 2.5 yr | ~1.75% | 56C lifetime max | +| Disk 6 | ST8000DM004 8TB SMR | ZR150CVS | 2.5 yr | ~1.75% | Clean | +| Cache | Samsung 970 EVO 1TB | — | — | — | 1% wear, excellent | + +All 7 Seagate drives are consumer desktop SMR (not NAS-grade). Dual parity protects against up to 2 simultaneous failures. + +## Timeline + +### March 2027 — Parity 1 + +| | Details | +|--|---------| +| Remove | ST8000DM004 8TB (ZCT2K65B) | +| Install | **Seagate Exos X24 24TB** (ST24000NM002H) | +| Cost | ~$380 | +| Time | Parity sync ~18 hrs | +| Risk at swap | ~20% | + +**Steps:** Stop array > power down > swap drive > power up > assign to Parity 1 slot > start array > parity sync + +Keep old drive labeled as cold spare. + +--- + +### May 2028 — Parity 2 + Disk 3 + +Do these a week apart. Parity first, then data drive. + +**Parity 2:** + +| | Details | +|--|---------| +| Remove | ST8000DM004 8TB (ZCT2K5PQ) | +| Install | **Seagate Exos X24 24TB** (ST24000NM002H) | +| Cost | ~$380 | +| Time | Parity sync ~18 hrs | + +**Disk 3 (one week later):** + +| | Details | +|--|---------| +| Remove | ST8000DM004 8TB (ZCT3XAEJ) | +| Install | **Toshiba MG10 20TB** (MG10ACA20TE) | +| Cost | ~$300 | +| Time | Rebuild ~18-20 hrs | + +Combined cost: ~$700. Risk at swap: ~20%. After this, monthly failure rate drops to ~0.9%. + +--- + +### Mid 2030 — Disks 1 & 2 + +| Slot | Install | Cost | +|------|---------|------| +| Disk 1 | **Toshiba MG10 20TB** | ~$300 | +| Disk 2 | **WD Ultrastar HC560 20TB** | ~$300 | + +Same batch as old parity drives, will be ~9 years old. Combined: ~$600. + +--- + +### Whenever — Disks 4, 5, 6 + +Low risk, replace opportunistically on sales. ~$300 each, ~$900 total. + +## Total Cost + +| Phase | When | Cost | Running Total | +|-------|------|------|--------------| +| Parity 1 | Mar 2027 | $380 | $380 | +| Parity 2 + Disk 3 | May 2028 | $700 | $1,080 | +| Disks 1 & 2 | Mid 2030 | $600 | $1,680 | +| Disks 4, 5, 6 | Whenever | $900 | $2,580 | + +## If a Drive Fails Before Its Scheduled Replacement + +- **Parity drive fails:** Buy 1x Exos X24 24TB, swap, parity sync +- **Data drive fails:** Need 2 drives — 1x Exos X24 24TB (new parity, since 20TB data > 8TB parity) + 1x 20TB data drive. Upgrade parity first, then replace data drive. + +Array stays online with a failed drive (dual parity). No data loss. Performance reduced until rebuild. + +## Final Array + +| Slot | Drive | Brand | Size | +|------|-------|-------|------| +| Parity 1 | Exos X24 | Seagate | 24TB | +| Parity 2 | Exos X24 | Seagate | 24TB | +| Disk 1 | MG10 | Toshiba | 20TB | +| Disk 2 | HC560 | WD | 20TB | +| Disk 3 | MG10 | Toshiba | 20TB | +| Disk 4 | TBD | TBD | 20TB+ | +| Disk 5 | HC560 | WD | 20TB | +| Disk 6 | MG10 | Toshiba | 20TB | + +Usable capacity: ~120TB (up from ~48TB). All CMR, all enterprise/NAS-grade, 3 brands, 5-year warranties. + +## Pending Config Fixes + +- [ ] Remove compose.manager plugin (deprecated, still installed) +- [ ] Set share security to Private (disk shares still "public") +- [ ] Move domains share to cache (useCache should be "prefer") +- [ ] Set up email/push notifications for drive alerts +- [ ] Configure UPS auto-shutdown (CyberPower CP1500, nut-dw plugin installed) +- [ ] Enable XMP in BIOS (RAM running 1333 MT/s, rated for 1600 MT/s) +- [ ] Verify appdata backups — test a restore diff --git a/notes/martial_arts/八极拳/陈氏太极拳/CTJ-lesson066.md b/notes/martial_arts/八极拳/陈氏太极拳/CTJ-lesson066.md new file mode 100644 index 0000000..4c88100 --- /dev/null +++ b/notes/martial_arts/八极拳/陈氏太极拳/CTJ-lesson066.md @@ -0,0 +1,14 @@ +--- +类型: 笔记 +tags: + - 笔记 + - 武术 +日期: 2026-03-18 +老师: Vincent +武术: 陈氏太极拳 +--- + +# 发劲六式 +1. 撑掌 - 别忘了探掌，然后最后几寸的时候发力 + +# 意念不要只到掌根，要到指尖，注意掌形 \ No newline at end of file diff --git a/notes/martial_arts/八极拳/陈氏太极拳/CTJ-lesson067.md b/notes/martial_arts/八极拳/陈氏太极拳/CTJ-lesson067.md new file mode 100644 index 0000000..c718ceb --- /dev/null +++ b/notes/martial_arts/八极拳/陈氏太极拳/CTJ-lesson067.md @@ -0,0 +1,21 @@ +--- +类型: 笔记 +tags: + - 笔记 + - 武术 +日期: 2026-03-25 +老师: Vincent +武术: 陈氏太极拳 +--- +# 懒扎衣 +- 刚开始两手分开时，右手掌心朝自己 +- 向上穿，然后向下，穿的时候前手臂要转，配合后脚碾步 + +# 抱虎归山 +- 太硬了 +- 两掌相对，靠近，差不多一起去捋，不要一前一后 +- 探，撑 + +# 白鹤亮翅 +1. 两只手要在身体前面，左手在膝盖左上方一点 + 1. 大概在自己身前一两掌的距离 \ No newline at end of file