File System Table (fstab)

I am posting my /etc/fstab. It is still not properly commented, but it is a good start point.

# LINUX OS
#---------------------------------------------------------------------------------------
# Device******| Mount Point (Dir) | Filesystem |********Options******** | Dump | fsck
#---------------------------------------------------------------------------------------
/dev/sda7**** /******************** reiserfs****acl,user_xattr************ 1******1
/dev/sda5**** /home**************** reiserfs****defaults****************** 1******2
/dev/sda6**** swap******************swap********defaults****************** 0******0

# WINDOWS OS
#----------------------------------------------------------------------------------------------
# Device******| Mount Point (Dir) | Filesystem |********Options******************| Dump | fsck
#----------------------------------------------------------------------------------------------
/dev/sda1**** /windows/C********** ntfs******** users,gid=users**********************0****0
/dev/sda2**** /windows/D********** vfat******** users,gid=users,umask=0002,utf8=true 0****0

# SOLARIS OS
#---------------------------------------------------------------------------------------
# Device******| Mount Point (Dir) | Filesystem |********Options******** | Dump | fsck
#---------------------------------------------------------------------------------------
#/dev/sda8**** /solaris/boot****** ufs**********ufstype=sunx86,defaults****0******0
#/dev/sda11****/solaris/data****** ufs**********ufstype=sunx86,defaults****0******0


# EXTERNAL DEVICES
#----------------------------------------------------------------------------------------------------
# Device******| Mount Point (Dir) | Filesystem |********Options************************| Dump | fsck
#----------------------------------------------------------------------------------------------------
proc********** /proc****************proc********defaults********************************** 0**** 0
sysfs**********/sys**************** sysfs****** noauto************************************ 0**** 0
usbfs**********/proc/bus/usb********usbfs****** noauto************************************ 0**** 0
devpts******** /dev/pts************ devpts******mode=0620,gid=5****************************0**** 0
#/dev/sdb2**** /media/back-up****** vfat********rw,users,gid=users,umask=0002,utf8=true****0**** 0

[code]

I'd suggest some file system tweaking to get better performance

for ReiserFS: acl,user_xattr,noatime,nodiratime,notail,barrier=f lush
for Ext3: acl,user_xattr,noatime,nodiratime,barrier=1
for XFS: defaults,noatime,nodiratime,barrier

I'd suggest some file system tweaking to get better performance

for ReiserFS: acl,user_xattr,noatime,nodiratime,notail,barrier=f lush
for Ext3: acl,user_xattr,noatime,nodiratime,barrier=1
for XFS: acl,user_xattr,noatime,nodiratime,barrier
[/b]

Thank you very much for these great tips.

César

I'd suggest some file system tweaking to get better performance

for XFS: acl,user_xattr,noatime,nodiratime,barrier
[/b]

When i added acl,user_xattr,noatime,nodiratime,barrier to my fstab i got an error:
Something like unknown acl the and drive would not mount changed it to
xfs defaults,noatime,nodiratime 1 2 and it mounted

/Geoff

When i added acl,user_xattr,noatime,nodiratime,barrier to my fstab i got an error:
Something like unknown acl the and drive would not mount changed it to
xfs defaults,noatime,nodiratime 1 2 and it mounted

/Geoff
[/b]

yeah my bad, it should be

for XFS: defaults,noatime,nodiratime,barrier

i switched them :wacko:

yeah my bad, it should be

for XFS: ...... barrier
for Ext3: ...... barrier=1

i switched them :wacko:
[/b]

Wasn't the barrier that was the problem it was unknown acl

/Geoff

Wasn't the barrier that was the problem it was unknown acl

/Geoff
[/b]

no, it was the defaults that wasnt there, instead it was acl,user_xattr which is true for other FSes but not for XFS

anyway, corrected now

no, it was the defaults that wasnt there, instead it was acl,user_xattr which is true for other FSes but not for XFS

anyway, corrected now
[/b]

Ok now i understand, thanks

/Geoff

I'd suggest some file system tweaking to get better performance

for Ext3: acl,user_xattr,noatime,nodiratime,barrier=1
for XFS: defaults,noatime,nodiratime,barrier
[/b]

What do theses settings do?
Something to do with speed i guess.
Just did a backup that usually takes ca 60 min in 30 min

/Geoff

What do theses settings do?[/b]

mostly nothing (because these are either default settings or doubled setings -> 2x the same flag):
1) barrier is included by default, no need to add "barrier" flag

2) noatime includes nodiratime so if one uses noatime flag no need to add nodiratime

for xfs safe options that will improve fs responsiveness

xfs defaults,noatime,logbufs=8,logbsize=32k,biosize=16

if you have UPS then add
nobarrier
I would suggest against using this option

barrier - the cache flush command
noatime and nodiratime - last access time is not recorded (file/dir)
biosize - sets the default I/O size
logbufs - specifies in-memory log buffers
logbsize - size of the buffer
last three options improve delete/write performance