March 2008
Intermediate to advanced
326 pages
10h 22m
English
book
SAN Volume Controller: Best Practices and Performance Guidelines
by Jon Tate, Deon George, Thorsten Hoss, Ronda Hruby, Ian MacQuarrie, Barry Mellish, Peter Mescher
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Chapter 9.4.5. Diagnosing and fixing 1920 errors
Page 163
Chapter 9. Copy services 163 This is particularly important if you have a Global/ Metro Mirror relationship running ( that is synchronized) and the link fails ( thus, the mirror relationship suspends). When you restart the mirror relationship, the target disk will not be usable until the mirror catches up and becomes synchronized again. Depending on the amount of changes that need to be applied to the target and your bandwidth, this situation will leave you exposed without a usable target VDisk at all until the synchronization completes. To avoid this exposure, we recommend that you make a FlashCopy of the target VDisks before you restart the mirror relationship. At least this way, you ...
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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.