diff options
Diffstat (limited to '')
| -rw-r--r-- | upstream/opensuse-leap-15-6/man8/blkmapd.8 | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/upstream/opensuse-leap-15-6/man8/blkmapd.8 b/upstream/opensuse-leap-15-6/man8/blkmapd.8 new file mode 100644 index 00000000..914b80f2 --- /dev/null +++ b/upstream/opensuse-leap-15-6/man8/blkmapd.8 @@ -0,0 +1,57 @@ +.\" +.\" Copyright 2011, Jim Rees. +.\" +.\" You may distribute under the terms of the GNU General Public +.\" License as specified in the file COPYING that comes with the +.\" nfs-utils distribution. +.\" +.TH blkmapd 8 "11 August 2011" +.SH NAME +blkmapd \- pNFS block layout mapping daemon +.SH SYNOPSIS +.B "blkmapd [-h] [-d] [-f]" +.SH DESCRIPTION +The +.B blkmapd +daemon performs device discovery and mapping for the parallel NFS (pNFS) block layout +client [RFC5663]. +.PP +The pNFS block layout protocol builds a complex storage hierarchy from a set +of +.I simple volumes. +These simple volumes are addressed by content, using a signature on the +volume to uniquely name each one. +The daemon locates a volume by examining each block device in the system for +the given signature. +.PP +The topology typically consists of a hierarchy of volumes built by striping, +slicing, and concatenating the simple volumes. +The +.B blkmapd +daemon uses the device-mapper driver to construct logical devices that +reflect the server topology, and passes these devices to the kernel for use +by the pNFS block layout client. +.SH OPTIONS +.TP +.B -h +Display usage message. +.TP +.B -d +Performs device discovery only then exits. +.TP +.B -f +Runs +.B blkmapd +in the foreground and sends output to stderr (as opposed to syslogd) +.SH SEE ALSO +.BR nfs (5), +.BR dmsetup (8) +.sp +RFC 5661 for the NFS version 4.1 specification. +.br +RFC 5663 for the pNFS block layout specification. +.SH AUTHORS +.br +Haiying Tang <Tang_Haiying@emc.com> +.br +Jim Rees <rees@umich.edu> |