Systrarnas dag 2019
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Manage database availability groups in Exchange Server
A database availability group (DAG) is a set of upto 16 Exchange Mailbox servers that provide automatic, database-level recovery from a database/server/network failure. DAGs use continuous replication and a subset of Windows failover clustering technologies to provide high availability and site resilience. Mailbox servers in a DAG monitor each other for failures. When a Mailbox server is added to a DAG, that server works with the other servers in the DAG to provide automatic, database-level recovery from database failures.
When you create a DAG, it's initially empty. When you add the first server to a DAG, a failover cluster is automatically created for the DAG. In addition, the infrastructure that monitors the servers for network or server failures is initiated. The failover cluster heartbeat mechanism and cluster database are then used to track and manage information about the DAG which can change quickly, such as database mount status, replication status, and last-mounted location.
Creating DAGs
A DAG can be created using the New Database Availability Group wizard in the Exchange admin center (EAC), or by running the
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Day Numbers for
This page lists all days in with day and week numbers.
The year has days.
« day numbers for | day numbers for »
| Date | Day number | Days remaining | Days from today (Wednesday 19th) | Week number | % of year |
|---|---|---|---|---|---|
| January 1, (Tue) | Day 1 | Week 1 | % | ||
| January 2, (Wed) | Day 2 | Week 1 | % | ||
| January 3, (Thu) | Day 3 | Week 1 | % | ||
| January 4, (Fri) | Day 4 | Week 1 | % | ||
| January 5, (Sat) | Day 5 | Week 1 | % | ||
| January 6, (Sun) | Day 6 | Week 1 | % | ||
| January 7, (Mon) | Day 7 | Week 2 | % | ||
| January 8, (Tue) | Day 8 | Week 2 | % | ||
| January 9, (Wed) | Day 9 | Week 2 | % | ||
| January 10, (Thu) | Day 10 | Week 2 | % | ||
| January 11, (Fri) | Day 11 | Week 2 | % | ||
| January 12, (Sat) | Day 12 | Week 2 | % | ||
| January 13, (Sun) | Day 13 | Week 2 | % | ||
| January 14, (Mon) | Day 14 | Week 3 | % | ||
| January 15, (Tue) | Day 15 | Week 3 | % | ||
| January 16, (Wed) | Day 16 | Week 3 | % | ||
| January 17, (Thu) | Day 17 | Week 3 | % | ||
| January 18, (Fri) | Day 18 | Week 3 | % | ||
| January 19, (Sat) | Day 19 | Week 3 | % | ||
| January 20, (Sun) | Day 20 | Week 3 | % | ||
| January 21, (Mon) | Day 21 | Week 4 | % | ||
| January 22, (Tue) | Day 22 • Den Heliga Zeinab (frid vare med henne) föddes den 5 Jamadi al-Awwal år 5 e. h. (år e. Kr.) i Medina. Hennes enastående uppväxt, missöden och nobless är något som vi alla bör se upp till och ständigt lära oss mer från. Man läser ofta om den Heliga Zeinabs (fvmh) skicklighet när det kommer till att behärska hela hushållet, hennes otroliga visdom som härstammar ifrån hennes nobla hem och om lojaliteten som hon ärvde av den Ärade Khadija (fvmh). Den Heliga Zeinabs födelsedag har i dagens muslimska värld blivit kallad för ”Systrarnas dag” till minne av hennes personlighet. |