Solaris 10 won't see entire disk space

Posted on 2007-08-03
Last Modified: 2013-12-27
We are attempting to install Solaris 10 on a Sun v210. It is connected to an external RAID server via SCSI. The RAID server is 1.2TB (4x400GB drives, with 2 hot spares) The v210 is only seeing 813GB on the unpartitioned drive. Isn't Solaris 10 suppose to support drives larger than 1TB? Are there any known issues or workarounds to seeing the entire disk space? Could this even be a BIOS issue with the v210?
Question by:asicadmin
    LVL 10

    Assisted Solution

    Did you created the LUN did you label them as EFI volumes ?
    LVL 40

    Assisted Solution


    Can you tell more about what you mentioned "The RAID server is 1.2TB (4x400GB drives, with 2 hot spares)"?

    If the total number of disks is 4, then the volume size is 2x400=800 GB (the hot spares are not counted), and what Solaris is reporting is correct.
    If the total number of disks is 6 (4+2), then is it RAID striping with parity?

    Author Comment

    There are 6 total drives. 4 of them are in a RAID 5 and  the other 2 are hot spares.
    LVL 10

    Assisted Solution

    Did you format the LUN as EFI ?  Pretty sure your issue is you haven't.  Solaris does support > 1TB LUNs but its a manual process to make it happen .. its not automatic.

    Author Comment

    "You cannot boot from a disk with an EFI disk label."

    We need to be able to boot off of this disk. The document you linked to says that won't work.
    LVL 10

    Assisted Solution

    Ahhh ... you didn't originally specify you wanted this to be your boot LUN.

    The document is the authority .. you can't boot off a EFI disk.

    Question - why do you need a boot LUN over even 50 GB ... why do you have to have a 1+ TB boot LUN ?
    LVL 14

    Accepted Solution

    Here is some Expert Advice from someone who has "been there and done that".

    Avoid booting from an external Raid 5 array.  You can probably get it to work, but be ready for a lot of late nights.

    The V210 has 2 internal drive, you should mirror them and use them for the system partitions.

    The proper way to set up a Sun (or any unix system), in my opinion is to set up individual partitions, or luns for the various system functions.

    You should have;
    / (root) which has /bin  and others
    /usr    has various system directories
    /var    contains system logs and such
    /tmp   contains temporary file space.
    /home has user home directories (sometimes mounted as /export/home)

    Then you should have various luns for data storage, which would be partitions from your Raid 5.  Almost nothing uses more than 1tb in a single directory, so this should solve your problem with the greater that 1tb problem.

    Some data directories might be;

    Plan your data layout carefully and be sure to make your /tmp and /var nice and large.  (The silly Sun layout tool indicates just a 100 or so mb  while I find that 4-6GB is a good place to start.)

    Good Luck!


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