From f71d9945ac1d789812aace1591aaca67dd711125 Mon Sep 17 00:00:00 2001 From: Sean Bruno Date: Thu, 17 Jun 2010 19:28:56 +0000 Subject: [PATCH] Expand man page to document the fact that mptutil/mpt doesn't support RAID volumes in excess of 2TB. Document workaround via geom or zfs Modified submitter's original patch to reference why this is broken and what to do to work around the issue. Submitted by: hubert@tournier.org PR: bin/147572 Reviewed by: jhb MFC after: 2 weeks --- usr.sbin/mptutil/mptutil.8 | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/usr.sbin/mptutil/mptutil.8 b/usr.sbin/mptutil/mptutil.8 index 196fc00e4b9b..473e7a92e0a3 100644 --- a/usr.sbin/mptutil/mptutil.8 +++ b/usr.sbin/mptutil/mptutil.8 @@ -384,3 +384,15 @@ configurations may not work reliably. .Pp Drive configuration commands result in an excessive flood of messages on the console. +.Pp +The mpt version 1 API that is used by +.Nm +and +.Xr mpt 4 +doesn't support volumes above two terabytes. +This is a limitation of the API. +If you are using this adapter with volumes larger than two terabytes, use the adapter in JBOD mode. +Utilize +.Xr geom 8 +.Xr zfs 1M +or another software volume manager to work around this limitation.