@ -1,6 +1,6 @@
#!/bin/bash
## Minio Cloud Storage, (C) 2017 Minio, Inc.
## Minio Cloud Storage, (C) 2017, 2018 Minio, Inc.
##
## Licensed under the Apache License, Version 2.0 (the "License");
## you may not use this file except in compliance with the License.
@ -16,9 +16,9 @@
# This script changes protected files, and must be run as root
for i in $( ls -d /sys/block/*/queue/iosched 2>/dev/null) ; do
iosched_dir = $( echo $i | awk '/iosched/ {print $1}' )
[ -z $iosched_dir ] && {
for i in $( echo /sys/block/*/queue/iosched 2>/dev/null) ; do
iosched_dir = $( echo " ${ i } " | awk '/iosched/ {print $1}' )
[ -z " ${ iosched_dir } " ] && {
continue
}
## Change each disk ioscheduler to be "deadline"
@ -29,22 +29,22 @@ for i in $(ls -d /sys/block/*/queue/iosched 2>/dev/null); do
## see whether write requests have been starved for too
## long, and then decides whether to start a new batch
## of reads or writes
path = $( dirname $iosched_dir )
[ -f $ path /scheduler ] && {
echo "deadline" > $path /scheduler
path = $( dirname " ${ iosched_dir } " )
[ -f " ${ path } /scheduler" ] && {
echo "deadline" > " ${ path } /scheduler " 2>/dev/null || true
}
## This controls how many requests may be allocated
## in the block layer for read or write requests.
## Note that the total allocated number may be twice
## this amount, since it applies only to reads or
## writes (not the accumulate sum).
[ -f $ path /nr_requests ] && {
echo "256" > $path /nr_requests
[ -f " ${ path } /nr_requests" ] && {
echo "256" > " ${ path } /nr_requests " 2>/dev/null || true
}
## This is the maximum number of kilobytes
## supported in a single data transfer at
## block layer.
[ -f $ path /max_sectors_kb ] && {
echo "1024" > $ path /max_sectors_kb || true
[ -f " ${ path } /max_sectors_kb" ] && {
echo "1024" > " ${ path } /max_sectors_kb" 2>/dev/null || true
}
done