Differences

This shows you the differences between two versions of the page.

--- computers:oak [2010/06/30 16:52] – chkuo
+++ computers:oak [2010/07/30 22:54] (current) – removed chkuo
@@ Line 1: / Line 1: @@
-====== Oak ======
-===== Services =====
-  * High-performance computation
-===== Hardware =====
-  * Model: NEC Express5800/T120a-M
-  * CPU: Intel Xeon E5520 (2.26 GHz, 4-core) * 2
-  * RAM: 4Gb DDR3 1066MHz * 4
-  * HDD: 3.5” SAS 15k RPM 450 Gb * 4, 3.5” SATA 2 Tb * 4
-==== RAID Setup ====
-  * ''/dev/sda''
-    * RAID 5 (2 Tb * 4)
-    * Mount at ''/''
-    * System partition
-  * ''/dev/sdb''
-    * RAID 0 (450 Gb * 4)
-    * Mount at ''/scratch''
-    * High-performance I/O
-==== RAID I/O Speed ====
-<code bash>
-$ sudo hdparm -tT /dev/sda
-/dev/sda:
- Timing cached reads:   15028 MB in  2.00 seconds = 7521.59 MB/sec
- Timing buffered disk reads:  960 MB in  3.00 seconds = 319.78 MB/sec
-$ sudo hdparm -tT /dev/sdb
-/dev/sdb:
- Timing cached reads:   14352 MB in  2.00 seconds = 7182.41 MB/sec
- Timing buffered disk reads:  1660 MB in  3.00 seconds = 553.13 MB/sec
-</code>
-===== Software =====