Adding Extra Hard Disk Post: 302523549

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Operating Systems Solaris Adding Extra Hard Disk Post 302523549 by tonymac on Thursday 19th of May 2011 05:25:43 AM

05-19-2011

Registered User

Adding more disks to an Ultra 10

From default, the Ultra 10 can support 2 x IDE hard disks.
You have 1 hard disk on a bay just under the power supply and the second hard disk that sits in the 5 1/4 bay underneath the CD-ROM.
You can in fact with the right cable and screws fit a third hard disk inside the chassis just above the floppy drive.
However if using this media bay, your hard disks would have to be low profile disks to achieve this such as the Seagate single platter LP 500GB.
Attaching these drives together is simple using 2 x IDE cables however you will need to modify OBP's boot aliases to cope with the new drive device paths.
For example, if you add a second drive, the CD-ROM will need to move up to being a slave device. This means it will become target 3 not target 2.
So, your OBP device alias for "cdrom" will need to change from the master position target 2 to the slave position target 3.
Your new hard disk will become the master on the second IDE channel meaning it becomes target 2.
Adding a third disk will require you using the third disk as a slave on the first IDE channel with your root disk. This will become target 1.
The Ultra 10 will then look like this:
root disk, master, first IDE channel, target 0
new disk, slave, first IDE channel, target 1
new disk, master, second IDE channel, target 2
CD-ROM/DVD, slave, second IDE channel, target 3

What I did was use a compact flash as my third disk and put the Solaris operating system on the compact flash. I then played with mirroring and ZFS using the 2 remaining 160GB HDD's I had installed.
I placed the compact flash (8GB) just above the floppy in the media drive bay using a disk bracket. Connected it as master to the first IDE channel.
Then I made the 2 x 160GB HDD's as the slave of the first IDE channel then the master of the second IDE channel. This worked really well and made my Ultra 10 seem like a modern SSD platform.
You probably should not do this though as you will need to practise root mirroring with your exam not just data disk mirroring.
So, try to obtain 2 of the smallest IDE hard disks you can get. 120GB's would be perfect but 160GB's waste a little space as the Ultra 10 will only see 128GB for it's root / boot disk.
Setting up of a root mirror via SVM or ZFS is well documented on Google. It's just a few small commands.

Hope this helps,

- tonymac

---------- Post updated at 10:25 AM ---------- Previous update was at 10:22 AM ----------

Oh, and don't worry about power / cooling.
The old 9GB and 18GB IDE drives that the Ultra 10 came with used far more power than a modern drive and thus generated far more heat. This disks sometimes used up to 15 watts.
Modern disks will use a fraction of that like 2 - 7 watts depending on disk and size.
The Ultra 10 will feel like it's been given a vacation.

- tonymac

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LEARN ABOUT SUSE

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)

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