doc: do not include ext4 as an example

Signed-off-by: Sage Weil <sage@redhat.com>

diff --git a/doc/start/ceph.conf b/doc/start/ceph.conf
index 513ed4501a9ce77b8c754ca91d76995fd1b94b1e..e2057caddd739fdee9515d847bcd00ebf31bb59b 100644 (file)
--- a/doc/start/ceph.conf
+++ b/doc/start/ceph.conf
@@ -17,9 +17,9 @@
        #osd mkfs options {fs-type} = {mkfs options}   # default for xfs is "-f"        
        #osd mount options {fs-type} = {mount options} # default mount option is "rw,noatime"
 
-       # For example, for ext4, the mount option might look like this:
+       # For example, for xfs, the mount option might look like this:
        
-       #osd mkfs options ext4 = user_xattr,rw,noatime
+       #osd mkfs options xfs = inode64,rw,noatime
 
        # Execute $ hostname to retrieve the name of your host,
        # and replace {hostname} with the name of your host.

diff --git a/doc/start/hardware-recommendations.rst b/doc/start/hardware-recommendations.rst
index da91af75faddd1b31388e2f60b936eb01a8f867f..777202092de6c040966e0a39b2b06a4785b895f0 100644 (file)
--- a/doc/start/hardware-recommendations.rst
+++ b/doc/start/hardware-recommendations.rst
@@ -55,10 +55,10 @@ OS operations, and simultaneous request for read and write operations from
 multiple daemons against a single drive can slow performance considerably. There
 are also file system limitations to consider: btrfs is not quite stable enough
 for production, but it has the ability to journal and write data simultaneously,
-whereas XFS and ext4 do not.
+whereas XFS does not.
 
 .. important:: Since Ceph has to write all data to the journal before it can 
-   send an ACK (for XFS and EXT4 at least), having the journal and OSD 
+   send an ACK (for XFS at least), having the journal and OSD 
    performance in balance is really important!
 
 
@@ -100,7 +100,7 @@ lead to resource contention and diminish the overall throughput. You may store a
 journal and object data on the same drive, but this may increase the time it
 takes to journal a write and ACK to the client. Ceph must write to the journal
 before it can ACK the write. The btrfs filesystem can write journal data and
-object data simultaneously, whereas XFS and ext4 cannot.
+object data simultaneously, whereas XFS cannot.
 
 Ceph best practices dictate that you should run operating systems, OSD data and
 OSD journals on separate drives.