OBP - root / mirror disk syntax Post: 302338445

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Operating Systems Solaris OBP - root / mirror disk syntax Post 302338445 by Sun Fire on Tuesday 28th of July 2009 02:23:56 AM

07-28-2009

Registered User

yes it depends on the hardware.

now, disk@0,0 (or sd@0,0) (sd = scsi disk) doesn't mean disk 0 slice 0

it means t0d0

disk@1,0 means t1d0

and so forth...

now the meaning of "a", "b", "c"...it means the slice

so c0t0d0s0 should be: disk@0,0:a

now, by default, if you don't specify the slice number it will take slice zero.

for example:
disk@0,0 means t0d0s0

disk@0,0:a means also t0d0s0

disk@0,0:f = t0d0s5

disk@1,0:b = t1d0s1

..............................

Now, the rest of the device name depends on the hardware, but there are things in common, take this example of yours:

/devices/pci@8,600000/SUNW,qlc@4/fp@0,0/ssd@w500000e010bfd1d1,0:a

Explanation:

pci@8,60000 = your system bus address
SUNW,qlc = the driver for QLogic card (for example, Emulex cards will look like this SUNW,emlx)...

fp@0,0 = means it's a fiber channel

ssd@w500000e010bfd1d1,0:a = WWN number is w500000e010bfd...

1,0:a = (as you already know) t1, slice 0

.....

all these things are documented by the way...you can go to each server's page in the system handbook, and check the hardware components and then go to the system board section, you should find more in-depth explanations.

so yes it depends on the hardware and the architecture of the system.

---------- Post updated at 01:23 AM ---------- Previous update was at 01:20 AM ----------

And by the way, you can do this to find out your system details:

For example:

Code:

# ls -l /dev/rdsk/c0t0d0s0

it should show you a link to the actual hardware

Sun Fire

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LEARN ABOUT SUNOS

root_archive

root_archive(1M)														  root_archive(1M)

NAME

       root_archive - manage bootable miniroot archives

SYNOPSIS

       /boot/solaris/bin/root_archive  pack  archive root

       /boot/solaris/bin/root_archive  unpack  archive root

       /boot/solaris/bin/root_archive  packmedia  solaris_image root

       /boot/solaris/bin/root_archive  unpackmedia  solaris_image root

       The  root_archive  utility is used to manage bootable miniroot archives and is currently only available on  platforms. The utility can pack
       and unpack boot/root archives in both ufs and hsfs (iso9660) format. It will always generate ufs archives.

       root_archive also uses the lofi file driver to export a file as a block device (see lofi(7D)) and mount to mount or  unmount  file  systems
       and remote resources (see mount(1M)). root_archive requires the same privileges that are needed to run these commands.

SUBCOMMANDS

       The root_archive command has the following subcommands:

       pack archive root

	   Pack from the image found under the root directory to the archive.

       unpack archive root

	   Unpack from the archive to an unpacked image under the root directory.

       packmedia solaris_image root

	   Pack the solaris image to the root directory.

       unpackmedia solaris_image root

	   Unpack the solaris image from the root directory.

       For  packmedia  and  unpackmedia,  other items that do not go into the ramdisk image are copied or uncopied (see cpio(1)) as well. Specifi-
       cally, this includes all the packaging databases needed for pkgadd and the other packaging utilities to succeed which are not used  in  the
       running and hence pruned to conserve memory.

EXAMPLES

       Example 1: Unpacking the Solaris x86 install image

       The following command unpacks the current Solaris image from the root directory:

       # root_archive unpackmedia 
       /export/nv/solarisdvd.nvx_dvd/latest /export/Boot

       Where  /export/nv/solarisdvd.nvx_dvd/latest  represents	a path to a Solaris x86 install image and /export/Boot is a directory that will be
       purged or created, as necessary.

       Example 2: Packing the Solaris x86 install image

       The following command packs the current Solaris image to the root directory:

       # root_archive packmedia 
       /export/nv/solarisdvd.nvx_dvd/latest /export/Boot

       The following exit values are returned:

       0

	   The command completed successfully.

       1

	   The command exited due to an error.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Stable			   |
       +-----------------------------+-----------------------------+

       cpio(1), bootadm(1M), mount(1M), attributes(5), lofi(7D)

								    26 Sep 2005 						  root_archive(1M)