ECS 2.0 – Monitor services: chunks, erasure coding, geo-replication, and recovery status

Table of Contents

About service monitoring

Describes the ECS Portal features for service monitoring.

Service monitoring includes:

Each of these monitoring areas has a corresponding page under the ECS Portal Monitor menu. The Geo Replication page has four separate displays within it.

See the following articles for information about other ECS Portal monitoring features:

Back to Top

Using monitoring pages

Introduces the basic techniques for using monitoring pages in the ECS Portal.

The ECS Portal monitoring pages share a set of common interactions. These are:

Navigating with breadcrumbs

Highlighted text in a table row indicates a link to a detail display. Selecting the link drills down to the next level of detail. On drill down displays, a path string shows your current location in the sequence of drill down displays. This path string is called a breadcrumb trail or breadcrumbs for short. Selecting any highlighted breadcrumb jumps up to the associated display.

Data chart with active cursor

When you select a History button, all available charts for that row display below the table. Mouse over a chart from left to right to see a vertical line that helps you find a specific date-time point on the chart. A pop-up display shows the value and timestamp for that point.

Back to Top

Monitor chunks

Describes the ECS Portal monitoring page for chunks.

This page reports statistics for sealed chunks in the local zone. A sealed chunk is one that can no longer accept writes. It is immutable.

Chunk metrics

Chunk Summary

Back to Top

Monitor erasure coding

Describes how to use the Monitor > Erasure Coding page.

The erasure coding display monitors the amount of total user data and erasure coded data in a local storage pool. It also shows the amount of data pending erasure coding the current rate, and estimated completion time. Charts hold seven days worth of data.

Procedure

  1. Select Monitor > Erasure Coding.
  2. Locate the table row for the target storage pool.
  3. Select the History button.
Back to Top

Monitor recovery status

Describes how to use the Monitor > Recovery Status page.

Recovery is the process of rebuilding data after any local condition that results in bad data (chunks). This table includes one row for each storage pool in the local zone.

Procedure

  1. Select Monitor > Recovery Status.
  2. Locate the table row for the target storage pool.
  3. Select the History button.
Back to Top

Monitor geo-replication: rate and chunks

Describes the table fields found in the ECS Portal Monitor > Geo-Replication > Rate and Chunks page.

This page provides fundamental metrics about the network traffic for a replication and the chunks waiting for replication by VDC or replication group.

Geo replication: Rate and Chunks

Back to Top

Monitor geo-replication: Recovery Point Objective (RPO)

Describes the table fields found in the ECS Portal Monitor > Geo-Replication > RPO page.

A recovery point objective (RPO) is your business rule for the limit of how long a service can be down. This display lets you see how long a recovery is taking for a replication group or zone.

RPO

Back to Top

Monitor geo-replication: failover

Describes the metrics found in the ECS Portal Monitor > Geo-Replication > Failover Processing page.

The Failover Processing page provides metrics on the process to re-synchronize a replication group after connectivity between VDCs is restored following an outage.

Failover

Back to Top

Monitor geo replication: bootstrap processing

Describes the fields found in the ECS Portal Monitor > Geo Replication > Bootstrap Processing page.

Bootstrapping refers to the process of copying necessary metadata to a replication group that has added a zone.

Bootstrap processing

Back to Top