XL 4 x AMD Opteron 6128 testing with a and on CentOS 5.3 via the Phoronix Test Suite. 2012-03-12 10:56: Processor: 4 x AMD Opteron 6128 @ 2.00GHz (4 Cores), Memory: 8192MB, Disk: 8GB OS: CentOS 5.3, Kernel: 2.6.18-128.el5xen (x86_64), Compiler: GCC 4.1.2, File-System: ext3 IOzone 3.347 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better 2012-03-12 10:56 . 295.55 |==================================================== IOzone 3.347 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better 2012-03-12 10:56 . 797.81 |==================================================== IOzone 3.347 Record Size: 4Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better 2012-03-12 10:56 . 268.52 |==================================================== IOzone 3.347 Record Size: 4Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better 2012-03-12 10:56 . 496.52 |==================================================== IOzone 3.347 Record Size: 4Kb - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better 2012-03-12 10:56 . 223.30 |==================================================== IOzone 3.347 Record Size: 4Kb - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better 2012-03-12 10:56 . 736.07 |==================================================== IOzone 3.347 Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better 2012-03-12 10:56 . 554.67 |==================================================== IOzone 3.347 Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better 2012-03-12 10:56 . 1522.46 |=================================================== IOzone 3.347 Record Size: 64Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better 2012-03-12 10:56 . 452.86 |==================================================== IOzone 3.347 Record Size: 64Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better 2012-03-12 10:56 . 1289.05 |=================================================== IOzone 3.347 Record Size: 64Kb - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better 2012-03-12 10:56 . 241.14 |==================================================== IOzone 3.347 Record Size: 64Kb - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better 2012-03-12 10:56 . 1383.68 |=================================================== IOzone 3.347 Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better 2012-03-12 10:56 . 500.38 |==================================================== IOzone 3.347 Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better 2012-03-12 10:56 . 1476.49 |=================================================== IOzone 3.347 Record Size: 1MB - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better 2012-03-12 10:56 . 454.43 |==================================================== IOzone 3.347 Record Size: 1MB - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better 2012-03-12 10:56 . 1324.18 |=================================================== IOzone 3.347 Record Size: 1MB - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better 2012-03-12 10:56 . 230.21 |==================================================== IOzone 3.347 Record Size: 1MB - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better 2012-03-12 10:56 . 1386.42 |===================================================