Differences

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--- raid [2009/11/20 14:13] – 172.26.0.166
+++ raid [2010/09/19 23:58] (current) – aorth
@@ Line 2: / Line 2: @@
 We have two RAIDs on the HPC
   * Linux kernel software RAID
-  * 3mware hardware RAID
+  * 3ware hardware RAID
 ==== Drive numbering ====
@@ Line 120: / Line 120: @@
 unused devices: <none></file>
 ===== Hardware RAID =====
-A 3ware 9500S SATA RAID card using the 3w-9xxx kernel module.  It has 12 channels.  The HPC is configured to use RAID5 for all of its RAID arrays on the hardware RAID.
+A 3ware 9500S-12 SATA RAID card using the 3w-9xxx kernel module.  It has 12 channels.  The HPC is configured to use RAID5 for all of its RAID arrays on the hardware RAID.
 ==== Physical Disk Layout ====
-We have one RAID controller, 'c1'.  Disks are plugged into ports, 'p1' - 'p11'.  The disks are then grouped into units (basically the rows), 'u0' - 'u2'.
+We have one RAID controller, 'c1'.  Disks are plugged into ports, 'p0' - 'p11'.  The disks are then grouped into units (basically the rows), 'u0' - 'u2'.
 | Port 8 | Port 9 | Port 10 | Port 11 |
@@ Line 135: / Line 134: @@
 ==== Repairing 'degraded' arrays ====
-There is a utility, tw_cli, which can be used to control/monitor the hardware raid controller.
+There is a utility, ''tw_cli'', which can be used to control/monitor the hardware raid controller.
 Study the output of ''show'' to know which controller to manage.  Then you can use ''/c1 show'' to show the status of that particular controller.  Things to look for:
@@ Line 162: / Line 161: @@
 w-9xxx: scsi1: AEN: ERROR (0x04:0x0002): Degraded unit detected:unit=0, port=3</file>
 <code>$ sudo tw_cli
 Password:
 //hpc-ilri> /c1 show