From 6a0256056b0616ed3940b890f6c0c51c5e4c00c3 Mon Sep 17 00:00:00 2001 From: Daniel Bulant Date: Mon, 13 Jun 2022 17:21:59 +0200 Subject: [PATCH] vault backup: 2022-06-13 17:21:59 --- .../plugins/obsidian-activity-history/data.json | 4 ++-- notes/psi/Data Center Tier.md | 11 +++++++++++ notes/psi/psi.md | 1 + 3 files changed, 14 insertions(+), 2 deletions(-) create mode 100644 notes/psi/Data Center Tier.md diff --git a/notes/.obsidian/plugins/obsidian-activity-history/data.json b/notes/.obsidian/plugins/obsidian-activity-history/data.json index d8e9432..95c05f6 100644 --- a/notes/.obsidian/plugins/obsidian-activity-history/data.json +++ b/notes/.obsidian/plugins/obsidian-activity-history/data.json @@ -13,7 +13,7 @@ { "path": "/", "date": "2022-06-13", - "size": 865835 + "size": 866703 } ], "activityHistory": [ @@ -718,7 +718,7 @@ }, { "date": "2022-06-13", - "value": 5744 + "value": 6612 } ] } diff --git a/notes/psi/Data Center Tier.md b/notes/psi/Data Center Tier.md new file mode 100644 index 0000000..d1a7672 --- /dev/null +++ b/notes/psi/Data Center Tier.md @@ -0,0 +1,11 @@ +# Data Center Tier +| Param | Tier 1 | Tier 2 | Tier 3 | Tier 4 | +| ---------------------------------------------- | ------------------------------------------------------ | -------------------------------------------------- | ------------------------------------------------------ | ------------------------------------------------------------------------ | +| Uptime guarantee | 99.671% | 99.751% | 99.982% | 99.995% | +| Downtime per year | <28.8h | <22h | <1.6h | <26.3min | +| Component redundancy | None | Partial power and cooling redundancy (partial N+1) | Full N+1 | Fault tolerant (2N or 2N+1) | +| Concurrently maintainable | No | No | Partially | Yes | +| Price | $ | \$\$ | \$\$\$ | \$\$\$\$ | +| Staffing | none | 1 shift | 1+ shift | 24/7 | +| Typical customer | Small companies and start-ups with simple requirements | SMBs | Growing and large businesses | Government entities and large enterprises | +| The main reason why companies select this tier | The most affordable data center tier | Good cost-to-performance | A fine line between high performance and affordability | Fault-tolerant facility for high levels of traffic or processing demands | diff --git a/notes/psi/psi.md b/notes/psi/psi.md index 3b2f044..119b438 100644 --- a/notes/psi/psi.md +++ b/notes/psi/psi.md @@ -8,6 +8,7 @@ imagePrefix: 'data/' ``` %% Zoottelkeeper: Beginning of the autogenerated index file list %% - [[psi/Adresace|Adresace]] +- [[psi/Data Center Tier|Data Center Tier]] - [[psi/Sítě|Sítě]] - [[psi/Switch|Switch]] - [[psi/Základní konfigurace|Základní konfigurace]]