
PRIMEQUEST 2000 Series Design Guide
3.3.4 HDD Configuration (5/5)
Memory Dump Function for RHEL
If a fatal system error occurs, data in the physical memory is output to a file.
Dump Types and Estimated Sizes
sadump
(a dedicated tool for PRIMEQUEST)
kdump
(OS standard function)
Dump acquisition area
(Dump device for sadump)
(Temporary data storage
area)
Internal disk => OK
External disk => OK
Cluster sharing is not allowed.
Installed memory ca 512MB
* Required
Alternative area that is used
if a device error occurs
(Installed memory ca 512MB)
:
N areas
(Installed memory ca 1GB) / 0.9
(1st generation) * Required
:
Error
Error
Acq
uisi
tion
(Installed memory ca 1GB) / 0.9
(2nd generation)
Save data to a disk
that is not managed
with GDS
(RAW device)
Save data to a disk
that is not
managed with GDS
When creating a dedicated disk
partition (such as /var/crash) for
saving dump data, increase the
acquisition area size for kdump by
10% in consideration of the file
system management area.
Acquisition area
for kdump
* Non-Fujitsu storage devices cannot be used for
dump areas for sadump.
Copyright 2016-2017 FUJITSU LIMITED
96