diff options
| -rw-r--r-- | share/man/man4/twe.4 | 33 |
1 files changed, 13 insertions, 20 deletions
diff --git a/share/man/man4/twe.4 b/share/man/man4/twe.4 index d92018ed786..fd84ca7049c 100644 --- a/share/man/man4/twe.4 +++ b/share/man/man4/twe.4 @@ -1,4 +1,4 @@ -.\" $OpenBSD: twe.4,v 1.2 2000/09/15 18:17:35 mickey Exp $ +.\" $OpenBSD: twe.4,v 1.3 2000/09/15 19:55:43 deraadt Exp $ .\" .\" Copyright (c) 2000 Michael Shalayeff. All rights reserved. .\" @@ -18,13 +18,13 @@ The .Nm driver provides support for Escalade family of raid controllers, including the -.Tn 3W-5x000 and -.Tn 3W-6x000 +.Tn 3W-5x00 and +.Tn 3W-6x00 models. .Pp -Controllers support RAID 0, RAID 1, RAID 10 and JBOD -configurations. All the RAID set volume management is done -through the cards BIOS. +These controllers support RAID 0, RAID 1, RAID 10 and JBOD +configurations. +All the RAID set volume management is done via the card BIOS. .Pp Even though the card uses IDE drives, this driver makes drives and/or RAID sets appear as @@ -46,22 +46,15 @@ The driver first appeared in .Ox 2.8 . .Sh BUGS -The card's BIOS seem to conflict w/ other disk controllers with -own BIOS if later are configured earlier than this one. -To avoid that put the card in the lowest slot before other -SCSI or RAID disk controllers, if possible. +The card's BIOS seems to conflict with some other disk controllers +which have their own BIOS, if such devices are configured earlier +than this one. +To avoid this situation, place +.Nm +cards in the lowest slot before other SCSI or RAID disk controllers. .Pp -The card provides mechanism to receive asynchronous notifications +The card provides a mechanism to receive asynchronous notifications about RAID set status change and so forth, unfortunately this information is not public. .Pp -The card requires data buffers to be aligned to 512 bytes, which -is not always provided by the -.Ox -kernel. -To work around that double-buffering is used, allocating aligned -buffer when required and copying data back and forth as needed. -Unaligned buffers are very rare occasion, but if not handled properly -makes the card comatose. -.Pp Only 3W-5400 was tested, but others should work. |