Most of today's
computer systems need to process large amount of data. The data are stored
in internal or external hard disks. It is critical for the computer servers
be able to move large amount of data as fast as possible. Therefore, the
performance of the I/O channel, including both software and hardware, is
very important to the overall system performance. Disk I/O performance
test is focusing on the raw and Direct IO with read and readv features.
The test provides an indicator of disk I/O performance. This is the typical
I/O environment used by database management systems like Oracle and DB2
in the telco industries.
Results
5/03/2002,
Data
Center
5/02/2002, Scalabilitybld1
5/01/2002, ols
charts
4/23/2002, ols results
4/11/2002, Carrier Grade
4/10/2002, Disk I/O Performance
Test Environment
Hardware : xSeries
8-way pIII @ 700 MHz with 1 MB L2; 4 GB RAM w/ kernel built 4 GB support;
4 IBM ServerRAID 4H controllers; 8 trays of 10 SCSI disks with 2 trays
attached to each controller; 32 logical disks with 2 physical SCSI
disks attached to each logical disk; 9.1 GB SCSI disk.
