Install Solaris 11 with ZFS Post: 302927497

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Operating Systems Solaris Install Solaris 11 with ZFS Post 302927497 by achenle on Wednesday 3rd of December 2014 12:42:24 PM

12-03-2014

Registered User

Another advantage of using RAID controllers if you have them: replacing a failed disk is usually really easy with today's RAID controllers:

Remove the failed disk, put in a new disk.

The ZFS features you wouldn't be using by using hardware RAID? You'd fail to be using the ZFS software RAID.

Use the hardware RAID if you have it.

---------- Post updated at 12:42 PM ---------- Previous update was at 12:31 PM ----------

If this is supposed to be a production server that will have a long life and have to go through multiple operating system upgrades and patches, you'll also want to use a total of four disks for two completely separate ZFS root pools. Put the four disks into two separate mirrored hardware RAID arrays.

See the man page for "beadm".

Also, read this:

https://blogs.oracle.com/orasysat/en...ng_solaris_111

One problem with that, in my experience: using just one root pool will result in a convoluted mess of ZFS snapshots and clones as your boot environments evolve over the life of the server. But if you always create a new boot environment in a ZFS pool that's separate from the ZFS pool the source boot environment resides on, there's no mess of ZFS snapshots and clones created.

Why would you want to use boot environments? Because you can create a new boot environment, patch and upgrade the new one while your server is still running, then simply boot to the new environment. And if it fails, you just reboot back to the old one.

It's a lot more reliable than "yum upgrade". Try reverting that if it doesn't work...

achenle

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LEARN ABOUT FREEBSD

uefi

UEFI(8) 						    BSD System Manager's Manual 						   UEFI(8)

NAME

     UEFI -- Unified Extensible Firmware Interface bootstrapping procedures

DESCRIPTION

     The UEFI Unified Extensible Firmware Interface provides boot- and run-time services to operating systems.	UEFI is a replacement for the
     legacy BIOS on the i386 and amd64 CPU architectures, and is also used on arm64 and ia64.

     The UEFI boot process loads system bootstrap code located in an EFI System Partition (ESP).  The ESP is a GPT or MBR partition with a spe-
     cific identifier that contains an msdosfs(5) FAT file system with a specified file hierarchy.

	   Partition Scheme    ESP Identifier
	   GPT		       C12A7328-F81F-11D2-BA4B-00A0C93EC93B
	   MBR		       0xEF

     The UEFI boot process proceeds as follows:
	   1.	UEFI firmware runs at power up and searches for an OS loader in the EFI system partition.  The path to the loader may be set by an
		EFI environment variable.  If not set, the default is /EFI/BOOT/BOOTX64.EFI.  The default UEFI boot configuration for FreeBSD
		installs boot1.efi as /EFI/BOOT/BOOTX64.EFI.
	   2.	boot1.efi locates the first partition with the type freebsd-ufs, and from it loads loader.efi.
	   3.	loader.efi loads and boots the kernel, as described in loader(8).

     The vt(4) system console is automatically selected when booting via UEFI.

FILES

     /boot/boot1.efi
		   First stage UEFI bootstrap
     /boot/boot1.efifat
		   msdosfs(5) FAT file system image containing boot1.efi for use by bsdinstall(8) and the bootcode argument to gpart(8).
     /boot/loader.efi
		   Final stage bootstrap
     /boot/kernel/kernel
		   default kernel
     /boot/kernel.old/kernel
		   typical non-default kernel (optional)

SEE ALSO

     vt(4), msdosfs(5), boot(8), gpart(8)

HISTORY

     UEFI boot support first appeared in FreeBSD 10.1.

AUTHORS

     UEFI boot support was developed by Benno Rice <benno@FreeBSD.org>, Ed Maste <emaste@FreeBSD.org>, and Nathan Whitehorn
     <nwhitehorn@FreeBSD.org>.	The FreeBSD Foundation sponsored portions of the work.

CAVEATS

     EFI environment variables are not supported by loader(8) or the kernel.

     boot1.efi loads loader.efi from the first FreeBSD-UFS file system it locates, even if it is on a different disk.

     boot1.efi cannot load loader.efi from a ZFS(8) file system.  As a result, UEFI does not support a typical root file system on ZFS configura-
     tion.

BSD
								 October 17, 2014							       BSD