November 1999
Intermediate to advanced
736 pages
22h 46m
English
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Chapter 7. SunOS/Solaris
As mentioned previously in this book, disks will fail. Occasionally, even the disk that contains the operating system will fail. How do you protect against such a disaster? Depending on your budget and the level of availability that you need, you may explore one or more of the following options if you’re running Solaris:
- Solstice Disk Suite mirrored root disk
If you are running Solaris, you can use Solstice Disk Suite (SDS) to mirror your root disk. (Other platforms have similar products.) A mirrored disk would automatically take over if the other disk fails. SDS is bundled free with Solaris, and mirroring the root drive is relatively easy.[44] It’s also easy to undo in case things get a little mixed up. You simply boot off a CD-ROM, mount the root filesystem from the good drive, and change the
/etc/vfstabto use the actual disk slice names instead of the SDS metadevice names. There are two downsides to this method. The first is that many people are using Veritas Volume Manager to manage the rest of their disks, and using SDS for the root disk may be confusing. The second downside is that it does not protect against root filesystem corruption. If someone accidentally overwrites/etc, the mirroring software will only make that mistake more efficient.Tip
Although this chapter talks mainly about SunOS/Solaris, the principles covered here are used in the other bare-metal recovery chapters.
- Veritas Volume Manager encapsulated root disk
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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.