IBM: VM/ESA® Performance on P/390 and R/390

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�Table 1. PC Server hardware and software configurations measured.        �
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�System                 � PC Server 500 (old)       � PC Server 520 (new) �
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�PC processor           � 90Mhz Pentium with 256K of� 133Mhz Pentium with �
�                       � L2 cache (Synchrostream)  � 512K asynchronous   �
�                       �                           � L2 cache            �
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� Hard drives           � 3                         � 5                   �
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� Approximate           �                           �                     �
�  capacity/drive       � 2.25G Fast/Wide           � 2.25G Fast/Wide     �
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� Array stripe width    � 64K                       � 64K                 �
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� Array Adapter         � IBM F/W Streaming RAID    � IBM SCSI-2 PCI-BUS  �
�                       �  Adapter                  �  RAID Adapter       �
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� Adapter cache settings� Read ahead=ON             � Read ahead=ON       �
�                       � Writeback=OFF             � Writeback=ON        �
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� OS/2 file system      � HPFS                      � HPFS386             �
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� Logical drive type    � RAID-5                    � RAID-5              �
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� Number of logical     �                           �                     �
�  drives               � 2                         � 2                   �
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� Number of partitions  �                           �                     �
� per logical drive     � 1                         � 1                   �
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� LAN Adapter           � IBM AutoLANStreamer MC 32 � IBM AutoLANStreamer �
�                       �                           �  MC 32              �
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� OS/2 Level            � V3 Warp Fullpack          � V4 Warp Server      �
�                       �                           �    Advanced         �
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� P/390 Support code    �                           �                     �
�  level                � March 1995                � Version 2.2         �
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