isa.kagoshima.jp isa.us isahaya.nagasaki.jp ise.mie.jp isehara.kanagawa.jp isen.kagoshima.jp isernia.it iserv.dev iservschule.de isesaki.gunma.jp ishigaki.okinawa.jp ishikari.hokkaido.jp ishikawa.fukushima.jp ishikawa.jp ishikawa.okinawa.jp ishinomaki.miyagi.jp isla.pr isleofman.museum ismaili isshiki.aichi.jp issmarterthanyou.com ist istanbul isteingeek.de istmein.de isumi.chiba.jp it it.ao it.com it.eu.org it1.eur.aruba.jenv-aruba.cloud it1.jenv-aruba.cloud itabashi.tokyo.jp itako.ibaraki.jp itakura.gunma.jp...

- 32 * 32 = 1024 drives pool1
- 12 * 12 = 144 drives pool2

> Notice the requirement of common SLA here original cluster had 1024 drives with 16 drives per erasure set with default parity of '4', second pool is expected to have a minimum of 8 drives per erasure set to match the original cluster SLA (parity count) of '4'. '12' drives stripe per erasure set in the second pool satisfies the original pool's parity count.

about: Create a report to help us improve
title: ''
labels: community, triage
assignees: ''

---

## NOTE
All GitHub issues are addressed on a best-effort basis at MinIO's sole discretion. There are no Service Level Agreements (SLA) or Objectives (SLO). Remember our [Code of Conduct](https://github.com/minio/minio/blob/master/code_of_conduct.md) when engaging with MinIO Engineers and the larger community.

,""),g=f.split(","),h=!0;return g.forEach(function(a,b){var d=parseInt(a);Number.isInteger(d)?0===b?(c=0<=d&&d<=360,c||(h=!1)):(c=0<=d&&d<=100,c||(h=!1)):h=!1}),h}return!1},errorMessage:"",errorMessageKey:"badHsl"}),a.formUtils.addValidator({name:"hsla",validatorFunction:function(a,c){if("true"===c.valAttr("allow-transparent")&&"transparent"===a)return!0;var d,e=a.replace(/ /g,""),f=/\([0-9]{1,3},[0-9]{1,3}%,[0-9]{1,3}%,[0,1]{1}.?[0-9]*\)/i;if(e.match(f)){var g=e.replace(/\(/g,"").replace(/\)/g,...

co.pn
org.pn
edu.pn
net.pn

// post : https://en.wikipedia.org/wiki/.post
post

// pr : http://www.nic.pr/index.asp?f=1
pr
com.pr
net.pr
org.pr
gov.pr
edu.pr
isla.pr
pro.pr
biz.pr
info.pr
name.pr
// these aren't mentioned on nic.pr, but on https://en.wikipedia.org/wiki/.pr
est.pr
prof.pr
ac.pr

// pro : http://registry.pro/get-pro
pro

your deployment.

Even though this change is backward compatible we do not expect that it affects
the vast majority of deployments in any negative way.

> Will an upgrade of an existing MinIO cluster impact the SLA of the cluster or will it even cause downtime?

No, an upgrade should not cause any downtime. However, on the first startup -
since MinIO will attempt to migrate any existing IAM data - the boot process may

var (
	// https://github.com/golang/lint/blob/master/lint.go#L770
	commonInitialisms         = []string{"API", "ASCII", "CPU", "CSS", "DNS", "EOF", "GUID", "HTML", "HTTP", "HTTPS", "ID", "IP", "JSON", "LHS", "QPS", "RAM", "RHS", "RPC", "SLA", "SMTP", "SSH", "TLS", "TTL", "UID", "UI", "UUID", "URI", "URL", "UTF8", "VM", "XML", "XSRF", "XSS"}
	commonInitialismsReplacer *strings.Replacer
)

func init() {

	}
	return sCfg.Optimize == "capacity"
}

// AvailabilityOptimized - returns true if the storage-class is availability
// optimized, meaning we will use additional parities when drives are offline
// to retain parity SLA.
//
// Default is "availability" optimized.
func (sCfg *Config) AvailabilityOptimized() bool {
	ConfigLock.RLock()
	defer ConfigLock.RUnlock()
	if !sCfg.initialized {
		return true
	}

> **NOTE:** **Each pool you add must have the same erasure coding parity configuration as the original pool, so the same data redundancy SLA is maintained.**

## 3. Test your setup

To test this setup, access the MinIO server via browser or [`mc`](https://min.io/docs/minio/linux/reference/minio-mc.html#quickstart).

## Explore Further

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