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authorDaniel W. S. Almeida <dwlsalmeida@gmail.com>2020-01-10 20:24:29 -0300
committerJonathan Corbet <corbet@lwn.net>2020-01-16 12:43:05 -0700
commit26f6225fa53dc4ad26b9d9d712c0f55a92eb2c23 (patch)
treef9d2bb1e7ddec06195e4dd09dd3b1ffc9933c862 /Documentation/admin-guide/nfs/pnfs-block-server.rst
parentDocumentation: nfs: idmapper: convert to ReST (diff)
downloadlinux-dev-26f6225fa53dc4ad26b9d9d712c0f55a92eb2c23.tar.xz
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Documentation: nfs: convert pnfs-block-server to ReST
Convert pnfs-block-server.txt to ReST and move it to admin-guide. Content remains mostly unchanged. Signed-off-by: Daniel W. S. Almeida <dwlsalmeida@gmail.com> Link: https://lore.kernel.org/r/c06903760e690c16d9df92f5e75f80381d6326d8.1578697871.git.dwlsalmeida@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to '')
-rw-r--r--Documentation/admin-guide/nfs/pnfs-block-server.rst (renamed from Documentation/filesystems/nfs/pnfs-block-server.txt)25
1 files changed, 15 insertions, 10 deletions
diff --git a/Documentation/filesystems/nfs/pnfs-block-server.txt b/Documentation/admin-guide/nfs/pnfs-block-server.rst
index 2143673cf154..b00a2e705cc4 100644
--- a/Documentation/filesystems/nfs/pnfs-block-server.txt
+++ b/Documentation/admin-guide/nfs/pnfs-block-server.rst
@@ -1,4 +1,6 @@
+===================================
pNFS block layout server user guide
+===================================
The Linux NFS server now supports the pNFS block layout extension. In this
case the NFS server acts as Metadata Server (MDS) for pNFS, which in addition
@@ -22,16 +24,19 @@ If the nfsd server needs to fence a non-responding client it calls
/sbin/nfsd-recall-failed with the first argument set to the IP address of
the client, and the second argument set to the device node without the /dev
prefix for the file system to be fenced. Below is an example file that shows
-how to translate the device into a serial number from SCSI EVPD 0x80:
+how to translate the device into a serial number from SCSI EVPD 0x80::
-cat > /sbin/nfsd-recall-failed << EOF
-#!/bin/sh
+ cat > /sbin/nfsd-recall-failed << EOF
-CLIENT="$1"
-DEV="/dev/$2"
-EVPD=`sg_inq --page=0x80 ${DEV} | \
- grep "Unit serial number:" | \
- awk -F ': ' '{print $2}'`
+.. code-block:: sh
-echo "fencing client ${CLIENT} serial ${EVPD}" >> /var/log/pnfsd-fence.log
-EOF
+ #!/bin/sh
+
+ CLIENT="$1"
+ DEV="/dev/$2"
+ EVPD=`sg_inq --page=0x80 ${DEV} | \
+ grep "Unit serial number:" | \
+ awk -F ': ' '{print $2}'`
+
+ echo "fencing client ${CLIENT} serial ${EVPD}" >> /var/log/pnfsd-fence.log
+ EOF