From cf0897fb98d860d085d1e18b53a1f50d6b00b5de Mon Sep 17 00:00:00 2001 From: markj Date: Sat, 22 Jun 2013 05:32:11 +0000 Subject: [PATCH] MFC r250599: 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. git-svn-id: svn://svn.freebsd.org/base/stable/9@252093 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f --- usr.sbin/mfiutil/mfiutil.8 | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/usr.sbin/mfiutil/mfiutil.8 b/usr.sbin/mfiutil/mfiutil.8 index 2c27ff396..79fe07f52 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: -- 2.45.0