man: IO -> I/O; I/Os -> I/O operations again

Reviewed by: Brian Behlendorf <[email protected]>
Signed-off-by: Ahelenia Ziemiańska <[email protected]>
Closes #13116

2 files changed, 9 insertions, 6 deletions

diff --git a/man/man7/zfsconcepts.7 b/man/man7/zfsconcepts.7
index f958035f7..0e5b21d54 100644
--- a/man/man7/zfsconcepts.7
+++ b/man/man7/zfsconcepts.7
@@ -193,10 +193,10 @@ Calculating the exact requirement depends heavily
 on the type of data stored in the pool.
 .Pp
 Enabling deduplication on an improperly-designed system can result in
-performance issues (slow IO and administrative operations).
+performance issues (slow I/O and administrative operations).
 It can potentially lead to problems importing a pool due to memory exhaustion.
 Deduplication can consume significant processing power (CPU) and memory as well
-as generate additional disk IO.
+as generate additional disk I/O.
 .Pp
 Before creating a pool with deduplication enabled, ensure that you have planned
 your hardware requirements appropriately and implemented appropriate recovery
diff --git a/man/man7/zfsprops.7 b/man/man7/zfsprops.7
index c6aa8daa9..9b8df63ba 100644
--- a/man/man7/zfsprops.7
+++ b/man/man7/zfsprops.7
@@ -1828,7 +1828,8 @@ Although under Linux the
 .Xr getxattr 2
 and
 .Xr setxattr 2
-system calls limit the maximum size to 64K.
+system calls limit the maximum size to
+.Sy 64K .
 This is the most compatible
 style of extended attribute and is supported by all ZFS implementations.
 .Pp
@@ -1836,10 +1837,12 @@ System attribute based xattrs can be enabled by setting the value to
 .Sy sa .
 The key advantage of this type of xattr is improved performance.
 Storing extended attributes as system attributes
-significantly decreases the amount of disk IO required.
-Up to 64K of data may be stored per-file in the space reserved for system attributes.
+significantly decreases the amount of disk I/O required.
+Up to
+.Sy 64K
+of data may be stored per-file in the space reserved for system attributes.
 If there is not enough space available for an extended attribute
-then it will be automatically written as a directory based xattr.
+then it will be automatically written as a directory-based xattr.
 System attribute based extended attributes are not accessible
 on platforms which do not support the
 .Sy xattr Ns = Ns Sy sa