Creating metadevices Post: 303013952

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Operating Systems Solaris Creating metadevices Post 303013952 by Peasant on Friday 2nd of March 2018 11:13:18 AM

03-02-2018

Moderator

You can use ISCSI disk slice for metadb.
Or any disk device slice as far as metadb is concerned.

With metadb command (not metainit), you use defined small slices on disks, not the entire devices (cNtNd0 or cNtNd0s2).

After metadb creation, you may use SVM via meta commands for managing metadevices and metasets.

Just be sure that those luns will be present on machine as long as SVM is used.
Or, if old luns are removed, and new one added, add new and put extra database replica on it.

Remove replica from from old LUN, then remove the lun from system.

Having one metadb slice on one disk is a bad idea anyway.
You would want at least two, spanning on multiple disks (not same disk multiple slices).

Only place in which you can or must use entire devices (cNtNd0s2) is
Copying partition table from from same sized devices prtvtoc .. | fmthard ..
Using dd.
Creating zpools.
SCSI,multipath, zfs debug, information and manipulation using luxadm, mpathadm and zdb commands.
Others i cannot remember now.

Good thing to mention is that using the whole disk during zpool creation will enable you to import that zpool on x86 or SPARC architecture due to filesystem endian awareness.

This, of course, provides data moving from one platform to another, not binaries.

Hope that helps
Regards
Peasant.

Peasant

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install-solaris

install-solaris(1M)													       install-solaris(1M)

NAME

       install-solaris - install the Solaris operating system

SYNOPSIS

       install-solaris

       install-solaris	invokes  the  Solaris  Install	program. Depending on graphical capability and available memory at the time of invocation,
       install-solaris invokes either a text-based installer or a graphical installer.

       The following minimum requirements for physical memory dictate which features are available during installation:

       For SPARC machines:

       128 MB

	   Minimum physical memory for all installation types

       128 MB

	   Minimum physical memory required for windowing system

       384 MB

	   Minimum physical memory required for graphical-based installation

       For x86 machines:

       256 MB

	   Minimum physical memory for all installation types

       256 MB

	   Minimum physical memory required for windowing system

       512 MB

	   Minimum physical memory required for graphical-based installation

       In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number  of  fea-
       tures available.

       install-solaris	exists	only  on  the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the  for more
       details.

       install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the
       installation media. Refer to the  for disk space requirements.

       Refer to the  for more information on the various menus and selections.

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcdrom  (Solaris instal-  |
       |			     |lation media)		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

       pkginfo(1), install(1M), pkgadd(1M), attributes(5)

       It is advisable to exit install-solaris by means of the exit options in the install-solaris menus.

								    23 Sep 2005 					       install-solaris(1M)