Ultra 5 and 20Gb Seagate Disc
I've been trying to install Solaris 10 on an Sun Ultra 5 with a 20Gb hard disk with little luck. The disk is the 20Gb Seagate that it came with. On the installation it appears to not be detecting any more than 8Gb of the disk.
I've noticed this a common problem in earlier versions of Solaris but I'm unsure how to fix this for Solaris 10. The OpenBoot PROM is version 3.19 - is this out of date to be able to use LBA? Or is there a way to reformat the disc to make it all accessble?
[506 byte] By [
ijackson] at [2007-11-25 23:06:07]
# 1
That is known problem with geometry of some drives that when you install them you get random (or maybe not so random) capacity that you can use, so you may have to experiment.
To upgrade to latest Boot PROM is always good ideam but I think that it may not help in this case.
I know for a face that WD 120 GB drives work fine with Ultra 5/10 (I am using them) so that is a safe buy.
# 2
Recently I had the same problem and managed to sort it out. Now I've got 20Gb. The problem may be that a previous release of Solaris (<8) installed on your system fixed the limit to 8Gb, and you have to zero the hard disk before you install a new Solaris.
Please have a look at my question in the Storage section under the title "ST320410A on Ultra 5, not reaching 20Gb", or perform a search for ST320410A.
Good luck.
Enrique
Edit by moderator:
Here is a link to that thread from 27-NOV-05:
<a href="http://supportforum.sun.com/hardware/index.php?t=msg&goto=20751" target="_blank"> http://supportforum.sun.com/hardware/index.php?t=msg&got o=20751</a>
