SUMMARY: BIG 1.6 MB SCSI drives & SunOS 4.1.1

Date: Mon Aug 26 1991 - 13:59:14 CDT

Thanx all who replied.
It seems that there is indeed a patch :
Patch-ID# 100343-01
Keywords: 1GB greater
Synopsis: SunOS 4.1.1 needs patch to access scsi drive capacity beyond 1GB.
SunOS release: 4.1.1 and 4.1.1 Rev B
Topic: 1.3GB Disk Drive Enhancement
BugId's fixed with this patch: 1058682
Architectures for which this patch is available: sun4c and sun4
Patches which may conflict with this patch: 100243-01 100309-01 100134-03
Obsoleted by:
Problem Description:
format functions are limited to 1GB (2^21 bit address). Reassign of a
block beyond 1GB wraps around to the lower 21 bit address.As a result,using
a 1.3 GB drive ,for example, the top .3GB will be inaccessible
without this patch.
Using the format "repair" function I reassigned block # 2676800 (28D840x). The
Flexstar tester reports block # 576648 (08D840 hex) to be reassigned.
Using the Ancot bus analyzer I verified that the driver is issuing a
reassign block command for block 08D840 hex, indicating that it is
truncating the most significant bits of the address and supports only a 21
bit address in this section of the code.
User data will remain intact, but since the block in error is not being
reassigned it will continue to fail, which could eventually lead to loss
of data. Good blocks will be reassigned unecessarily, which can adversely
affect performance.
earl smith <>
Ric Anderson <> send me this README info (Jim Ziobro) send me this patch THANX!!
Steve Hanson <> (Doug Neuhauser) send me a previous summary Thanx.
Carl Rigney <>
Daryl Crandall <>
I installed that patch for that new disk and it worked.
Marcel Bernards, UNIX & Net sysadm Netherlands Energy Research Foundation ECN
(and SURFnet IP/ICP), Phone: (+31 /0)2246 4579 Fax: (+31 /0)2246 1864
E-Mail: Bernards@ECN.NL, SnailMail: P.O. Box 1, 1755 ZG Petten
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