From: Grant Slater <git@firefishy.com>
Date: Mon, 23 Oct 2017 17:33:58 +0000 (+0100)
Subject: Tune WDC RE3/RE4 disks with poor NCQ
X-Git-Url: https://git.openstreetmap.org/chef.git/commitdiff_plain/9dd6b2460ae6cbfb64a1497dd945ad91fc4b3c0a?hp=b880555fc74d89334f5f50408764e39437e1e139

Tune WDC RE3/RE4 disks with poor NCQ
---

diff --git a/cookbooks/devices/templates/default/udev.rules.erb b/cookbooks/devices/templates/default/udev.rules.erb
index e6d5a7e81..d6f30d69b 100644
--- a/cookbooks/devices/templates/default/udev.rules.erb
+++ b/cookbooks/devices/templates/default/udev.rules.erb
@@ -32,9 +32,10 @@ SUBSYSTEM=="net", ACTION=="add", ATTRS{vendor}=="0x8086", ATTRS{device}=="0x10c9
 SUBSYSTEM=="net", ACTION=="add", ATTRS{vendor}=="0x8086", ATTRS{device}=="0x10d3", ATTRS{subsystem_vendor}=="0x15d9", ATTRS{subsystem_device}=="0x10d3", RUN+="/usr/local/bin/fixeep-82574_83.sh $name"
 
 # Workaround unreliable Western Digital WD RE3/RE4 disks (ATA only)
-# Set sufficent Linux subsystem timeout
-ACTION=="add", SUBSYSTEM=="block", ENV{DEVTYPE}=="disk", ENV{ID_BUS}=="ata", ENV{ID_MODEL}=="WDC_WD1002FBYS-02A6B0", ATTR{device/timeout}="90"
-ACTION=="add", SUBSYSTEM=="block", ENV{DEVTYPE}=="disk", ENV{ID_BUS}=="ata", ENV{ID_MODEL}=="WDC_WD1003FBYX-01Y7B0", ATTR{device/timeout}="90"
+# Set sufficent Linux subsystem timeout and fix severe NCQ performance issue
+ACTION=="add", SUBSYSTEM=="block", ENV{DEVTYPE}=="disk", ENV{ID_BUS}=="ata", ENV{ID_MODEL}=="WDC_WD5002ABYS-02B1B0", ATTR{device/timeout}="90", ATTR{device/queue_depth}="1", ATTR{queue/nr_requests}="256"
+ACTION=="add", SUBSYSTEM=="block", ENV{DEVTYPE}=="disk", ENV{ID_BUS}=="ata", ENV{ID_MODEL}=="WDC_WD1002FBYS-02A6B0", ATTR{device/timeout}="90", ATTR{device/queue_depth}="1", ATTR{queue/nr_requests}="256"
+ACTION=="add", SUBSYSTEM=="block", ENV{DEVTYPE}=="disk", ENV{ID_BUS}=="ata", ENV{ID_MODEL}=="WDC_WD1003FBYX-01Y7B0", ATTR{device/timeout}="90", ATTR{device/queue_depth}="1", ATTR{queue/nr_requests}="256"
 # Disable Disk Write Cache, Set AAM and Power Management correctly
 ACTION=="add", SUBSYSTEM=="block", ENV{DEVTYPE}=="disk", ENV{ID_BUS}=="ata", ENV{ID_MODEL}=="WDC_WD1002FBYS-02A6B0", RUN+="/sbin/hdparm -q -W0 -q -M254 $env{DEVNAME}"
 ACTION=="add", SUBSYSTEM=="block", ENV{DEVTYPE}=="disk", ENV{ID_BUS}=="ata", ENV{ID_MODEL}=="WDC_WD1003FBYX-01Y7B0", RUN+="/sbin/hdparm -q -W0 -q -M254 -q -B254 $env{DEVNAME}"