# MinIO Server Limits Per Tenant

For optimal production setup MinIO recommends Linux kernel version 4.x and later.

## Erasure Code (Multiple Drives / Servers)

| Item                                                            | Specification |
|:----------------------------------------------------------------|:--------------|
| Maximum number of servers per cluster                           | no-limit      |

- Test all upgrades in a lower environment (DEV, QA, UAT) before applying to production. Performing blind upgrades in production environments carries significant risk.
- Read the release notes for MinIO *before* performing any upgrade, there is no forced requirement to upgrade to latest release upon every release. Some release may not be relevant to your setup, avoid upgrading production environments unnecessarily.

# Erasure code sizing guide

## Toy Setups

Capacity constrained environments, MinIO will work but not recommended for production.

| servers | drives (per node) | stripe_size | parity chosen (default) | tolerance for reads (servers) | tolerance for writes (servers) |
|--------:|------------------:|------------:|------------------------:|------------------------------:|-------------------------------:|

Lets start the lamdba handler.

```
python lambda_handler.py
 * Serving Flask app 'webhook'
 * Debug mode: off
WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
 * Running on http://127.0.0.1:5000
Press CTRL+C to quit
```

## Start MinIO with Lambda target

Upgrade Checklist - Test all upgrades in a lower environment (DEV, QA, UAT) before applying to production. Performing blind upgrades in production environments carries significant risk. - Read the release notes for MinIO *before* performing any upgrade, there is no forced requirement to upgrade to latest release upon every release. Some release may not be relevant to your setup, avoid upgrading production environments unnecessarily. - If you plan to use `mc admin update`, MinIO process must have write...

	if _, maxLimit, err = sys.GetMaxOpenFileLimit(); err != nil {
		return err
	}

	if maxLimit < 4096 && runtime.GOOS != globalWindowsOSName {
		logger.Info("WARNING: maximum file descriptor limit %d is too low for production servers. At least 4096 is recommended. Fix with \"ulimit -n 4096\"",
			maxLimit)
	}

	if err = sys.SetMaxOpenFileLimit(maxLimit, maxLimit); err != nil {
		return err
	}

		}

		if !globalServerCtxt.StrictS3Compat {
			warnings = append(warnings, color.YellowBold("- Strict AWS S3 compatible incoming PUT, POST content payload validation is turned off, caution is advised do not use in production"))
		}
	})
	if globalActiveCred.Equal(auth.DefaultCredentials) {

     under this Public License.

  i. Share means to provide material to the public by any means or
     process that requires permission under the Licensed Rights, such
     as reproduction, public display, public performance, distribution,
     dissemination, communication, or importation, and to make material
     available to the public including in ways that members of the

		return false
	}
	for i, ecindex := range ei.Distribution {
		if ecindex != nei.Distribution[i] {
			return false
		}
	}
	return true
}

// BitrotAlgorithm specifies a algorithm used for bitrot protection.
type BitrotAlgorithm uint

const (
	// SHA256 represents the SHA-256 hash function
	SHA256 BitrotAlgorithm = 1 + iota
	// HighwayHash256 represents the HighwayHash-256 hash function
	HighwayHash256

func addCustomHeadersMiddleware(h http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		header := w.Header()
		header.Set("X-XSS-Protection", "1; mode=block")                                // Prevents against XSS attacks
		header.Set("X-Content-Type-Options", "nosniff")                                // Prevent mime-sniff