From: Randy Millis (rmillisl@gdcanada.com)
Date: Tue Jul 08 2003 - 11:57:48 EDT
I have managed a number of small i386 RedHat Linux servers over the last
several years with software mirrored disks and a max of 512 MB RAM, but am
quite new to managing Solaris 9 sparc machines.
I have a Sunfire v880 with a full disk bay and 8 GB RAM and would like to
get some advice on some good strategies for laying out and managing fault
tolerant disks. This is a general purpose application and file server
My Sun system architect suggested to go with one large root partition and
said that this was becoming a more common method, and in many cases is
simpler to manage down the road with unknown growth than strictly
partitioning everything down.
So, my plan was to create a 10 GB slice for root, but I am unsure about what
size to allocate for swap. I believe the recommendation from Sun is twice
physical RAM - so 16 GB in my case. What are the pros and cons here?
Next I was planning to mirror the 10 GB root, and also mirror the swap with
Sun Volume Manager (SVM) , and then create a RAID5 array of the remaining
disks. What are the pros and cons to mirroring swap? I have heard
conflicting views on this?
As well I am unsure of the pros and cons of using Sun Volume Manager VS
Veritas Volume Manager to manage a RAID 5 array.
I also read an article in Sys Admin Magazine (online) that suggested (on
Solaris 8 anyway) the best of both worlds was mirroring the OS with Solstice
DiskSuite then using Veritas to manage other disk volumes so as not to
encapsulate the root disks, and I wondered if this still held true with
Solaris 9.
Thanks for any comments and suggestions.
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