hardware 归档 - 第3页 共4页 - 夜莺博客

标签：hardware

ZFS zpool and RAIDZ vdev Administration Guide

ZFS zpool and RAIDZ vdev Administration Guide

Build and operate ZFS storage: create RAIDZ pools, add vdevs, replace failed disks, scrub for errors, and read zpool status like an operator.

admin admin 2026-09-20
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F5 BIG-IP Virtual Server and Health Monitor Setup

F5 BIG-IP Virtual Server and Health Monitor Setup

Build an F5 BIG-IP LTM deployment: create a custom health monitor, attach it to a pool, publish a virtual server, and verify pool member status.

admin admin 2026-09-20
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ipmitool Operations: Sensors, SEL, SOL and Power

ipmitool Operations: Sensors, SEL, SOL and Power

Use ipmitool on Linux for out-of-band server management: sensor and SDR reads, SEL review, Serial-over-LAN console access, power control and firmware

admin admin 2026-09-19
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100G DAC vs AOC vs Optics: Selection & Troubleshooting

100G DAC vs AOC vs Optics: Selection & Troubleshooting

Compare passive DAC, active DAC, AOC and 100G optics: reach, power, latency, breakout support and the link-down faults each cable type causes.

admin admin 2026-09-19
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Junos FPC Offline & Chassis Alarm Troubleshooting

Junos FPC Offline & Chassis Alarm Troubleshooting

Diagnose Junos chassis alarms and FPC offline states on MX and PTX routers: show chassis fpc, error reasons, offline/online recovery and syslog checks

admin admin 2026-09-19
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MPO/MTP Polarity: Type A, B and C in Practice

MPO/MTP Polarity: Type A, B and C in Practice

Choose MPO/MTP polarity correctly for 40G, 100G, 400G and 800G parallel optics: Type A, B and C mapping, gender, and how to fix a dead link.

admin admin 2026-09-15
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OTDR Trace Interpretation: Events, Loss, Reflectance

OTDR Trace Interpretation: Events, Loss, Reflectance

Read an OTDR trace correctly: identify reflective and non-reflective events, expected loss and reflectance values, and separate bends from bad splices

admin admin 2026-09-15
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smartctl and smartd: Catch Failing Disks Early

smartctl and smartd: Catch Failing Disks Early

SMART done properly: the attribute columns that matter, HDD, SAS and NVMe failure predictors, smartd scheduling, Prometheus export and safe RAID repla

admin admin 2026-09-14
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800G ZR/ZR+ Coherent Pluggables: IPoDWDM Design Guide

800G ZR/ZR+ Coherent Pluggables: IPoDWDM Design Guide

How 800G ZR/ZR+ QSFP-DD coherent pluggables work, what ZR versus ZR+ modes deliver in reach and output power, and when IPoDWDM wins over a transponder

admin admin 2026-09-12
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Cisco IOS-XR Line Card Diagnostics: show diag and Safe OIR

Cisco IOS-XR Line Card Diagnostics: show diag and Safe OIR

Isolate a failing IOS-XR line card: node states, show diag output, hw-module error counters, context dumps, FPD checks and safe OIR steps.

admin admin 2026-09-11
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