From: Dave.Zarnoch@SUNGARD.COM
Date: Wed Jul 24 2002 - 09:04:34 EDT
Folks,
Got this from an acquaintance at IBM:
DO NOT RUN AIX V5 WITH THE 32-BIT KERNEL AND JFS2'S UNLESS YOU HAVE THIS
APAR INSTALLED!!!
APAR= IY32280 JFS2 ENHANCEMENT FOR 32-BIT KERNEL
SB02/06/19 RC02/06/19 CL02/06/19
COMP OPER ENV= 110 510
PROBLEM SUMMARY:
On the 32-bit kernel, JFS2 is severely limited in the number of buffers
available because of the limitations of the kernel heap. This can lead to
filesystem hang conditions.
PROBLEM CONCLUSION:
JFS2 will allocate and attach an additional segment on the 32-bit kernel to
increase available buffers by an order of magnitude or greater.
Hope this helps....
Dave Zarnoch
UNIX Systems Engineer
SunGard eSourcing
600 Laurel Oak Rd.
Voorhees, NJ 08043
Dave.Zarnoch@sungard.com
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