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authormarkj <markj@FreeBSD.org>2013-05-13 15:00:36 +0000
committermarkj <markj@FreeBSD.org>2013-05-13 15:00:36 +0000
commit3ab4b4db19663ed22fdaf264f9401d1d2a38371d (patch)
tree100c6b45733a6eddf423d39e280cd923a957dad1 /usr.sbin/mfiutil
parentefa81decff4d8caa6e48e813e15e9713a378d8ac (diff)
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Add a remark to the effect that a manually started relearn will always
result in the battery being completely drained, even in transparent learning mode. MFC in: 3 days Sponsored by: Sandvine Inc.
Diffstat (limited to 'usr.sbin/mfiutil')
-rw-r--r--usr.sbin/mfiutil/mfiutil.84
1 files changed, 4 insertions, 0 deletions
diff --git a/usr.sbin/mfiutil/mfiutil.8 b/usr.sbin/mfiutil/mfiutil.8
index 5468617..e507ae0 100644
--- a/usr.sbin/mfiutil/mfiutil.8
+++ b/usr.sbin/mfiutil/mfiutil.8
@@ -573,6 +573,10 @@ Updates the flash on the controller with the firmware stored in
A reboot is required for the new firmware to take effect.
.It Cm start learn
Start a battery relearn.
+Note that this seems to always result in the battery being completely drained,
+regardless of the BBU mode.
+In particular, the controller write cache will be disabled during the relearn
+even if transparent learning mode is enabled.
.It Cm bbu Ar setting Ar value
Update battery backup unit (BBU) properties related to battery relearning.
The following settings are configurable:
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