October 2016
Intermediate to advanced
208 pages
4h 9m
English
book
Disaster Recovery Using VMware vSphere Replication and vCenter Site Recovery Manager - Second Edition
by Abhilash G B
Content preview from Disaster Recovery Using VMware vSphere Replication and vCenter Site Recovery Manager - Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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How does replication work?
Once VM replication is successfully configured, it first does an initial full sync of the source VMDKs to the target datastore. If you already have the base VMDKs precopied to the destination datastore, then only the changed blocks are replicated. The replication happens over the network using the Network File Copy (NFC) protocol. The changed blocks are transferred using ESXi's management VMkernel port group.
Once the initial sync is complete, the VR Agent tracks the changed blocks using the vSCSI filter driver. It tracks, writes, and maintains a bitmap of the changed blocks. Every time a replica is created, the data transferred is copied to a redo log file. This is done to make sure that a VM at the recovery site is ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.