Tw cli
Some of our hardware raid controllers are controlled by the tw_cli command line tool. Most machines that have hardware arrays will have it installed but if not then you can grab it from the vendor 3ware.
Once on a machine you can start interacting with the controller by doing the following
root@amane:~# tw_cli
//amane> ?
Copyright(c) 2004 Applied Micro Circuits Corporation(AMCC). All rights reserved.
Copyright(c) 2002, 2003, 2004 3ware, Inc. All rights reserved.
AMCC/3ware CLI (version 2.00.02.009)
Commands Description
-------------------------------------------------------------------
info Displays information about controller(s), unit(s) and port(s).
maint Performs maintenance operations on controller(s), unit(s) and ports.
alarms Displays current AENs.
set Displays or modifies controller and unit settings.
sched Schedules bachground tasks on controller(s) (9000 only)
quit Exits the CLI.
---- New Command Syntax ----
focus Changes from one object to another. For Interactive Mode Only!
show Displays information about controller(s), unit(s) and port(s).
flush Flush write cache data to units in the system.
rescan Rescan all empty ports for new unit(s) and disk(s).
commit Commit dirty DCB to storage on controller(s). (Windows only)
/cx Controller specific commands.
/cx/ux Unit specific commands.
/cx/px Port specific commands.
/cx/bbu BBU specific commands. (9000 only)
To check up on the controller use the info command
//amane> info Ctl Model Ports Drives Units NotOpt RRate VRate BBU ------------------------------------------------------------------------ c0 9500S-8 8 7 1 1 2 4 Fault c1 7006-2 2 2 1 0 2 - - c2 9500S-8 8 8 1 1 3 4 OK
In this case c0 is showing us a serious fault. To find the details of the failure take a look at
//amane> info c0 Unit UnitType Status %Cmpl Stripe Size(GB) Cache AVerify IgnECC ------------------------------------------------------------------------------ u0 RAID-10 INOPERABLE - 64K 1490.07 OFF OFF OFF Port Status Unit Size Blocks Serial --------------------------------------------------------------- p0 DEGRADED u0 372.61 GB 781422768 WD-WMAMY12171 p1 OK u0 372.61 GB 781422768 WD-WMAMY12171 p2 OK u0 372.61 GB 781422768 WD-WMAMY17829 p3 OK u0 372.61 GB 781422768 WD-WMAMY11772 p4 SMART-FAILURE u0 372.61 GB 781422768 WD-WMAMY12171 p5 NOT-PRESENT - - - - p6 OK u0 465.76 GB 976773168 WD-WCAS877686 p7 OK u0 372.61 GB 781422768 WD-WMAMY12170 Name OnlineState BBUReady Status Volt Temp Hours LastCapTest --------------------------------------------------------------------------- bbu On No Fault TooLow TooLow 0 xx-xxx-xxxx
Once the hardware fault has been identified, please add the repair to the Data Center tasks page.