path: root/share/man/man4/mpt.4
diff options
authorSebastian Oswald <sebastian at rostwald.de>2021-01-16 23:27:43 +0000
committerDaniel Ebdrup Jensen <debdrup@FreeBSD.org>2021-01-16 23:41:59 +0000
commit0ec6c03c76821edacba0615d3883293ad5f37dfc (patch)
tree7f09359bd8824e7c9c779a29405fe4c377a6cf5d /share/man/man4/mpt.4
parentef698fabe42827bad43bf046143ef26e47d57514 (diff)
mpt.4: Warn about unexpected behaviour on older controllers
Older controllers have errata which causes the disk controller to wrap data to other LBAs, causing data to be overwritten. [1] While here, fix a small typo. 1: https://www.broadcom.com/support/knowledgebase/1211161496563/3-terabyte-3tb-capacity-drives-on-lsi-megaraid-and-3ware-control PR: 220343 Submitted by: Sebastian Oswald <sebastian at rostwald.de> Reviewed by: 0mp Event: January 2021 Bugathon Differential Revision: <https://reviews.freebsd.org/D28201
Diffstat (limited to 'share/man/man4/mpt.4')
1 files changed, 10 insertions, 2 deletions
diff --git a/share/man/man4/mpt.4 b/share/man/man4/mpt.4
index b3a29f633952..4f243eb1823c 100644
--- a/share/man/man4/mpt.4
+++ b/share/man/man4/mpt.4
@@ -35,7 +35,7 @@
.\" $FreeBSD$
-.Dd July 23, 2011
+.Dd January 16, 2021
.Dt MPT 4
@@ -119,7 +119,7 @@ driver can be found onboard on many systems including:
.Bl -bullet -compact
-Dell PowerEdge 1750 thru 2850
+Dell PowerEdge 1750 through 2850
IBM eServer xSeries 335
@@ -149,6 +149,14 @@ This driver also supports target mode for Fibre Channel cards.
This support may be enabled by setting the desired role of the core via
the LSI Logic firmware utility that establishes what roles the card
can take on - no separate compilation is required.
+Most controllers supported by the
+driver suffer from limitations on supported disk size (mostly <2TB).
+While most controllers will truncate usable disk size, others might
+behave unexpetedly and can cause severe data loss.
+Refer to the datasheet of the chipset and firmware version for information
+about supported disk size and limitations.
.Xr cd 4 ,
.Xr ch 4 ,