Mounting xfs filesystem takes long time

["swadmin - levigo.de" <swadmin@levigo.de>]

Hi @all
I have a problem with mounting a large XFS filesystem which takes about
8-10 minutes.



:~# df -h /graylog_data
Filesystem                       Size  Used Avail Use% Mounted on
/dev/mapper/vgdata-graylog_data   11T  5.0T  5.1T  50% /graylog_data

----

:~# xfs_info /dev/mapper/vgdata-graylog_data
meta-data=/dev/mapper/vgdata-graylog_data isize=512    agcount=40805,
agsize=65792 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=1 spinodes=0 rmapbt=0
         =                       reflink=0
data     =                       bsize=4096   blocks=2684612608, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
log      =internal               bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0

----

:~# strace -f mount /dev/mapper/vgdata-graylog_data /graylog_data >
/root/mount 2>&1

[...]

stat("/sbin/mount.xfs", 0x7ffe36bcfe80) = -1 ENOENT (No such file or
directory)
stat("/sbin/fs.d/mount.xfs", 0x7ffe36bcfe80) = -1 ENOENT (No such file
or directory)
stat("/sbin/fs/mount.xfs", 0x7ffe36bcfe80) = -1 ENOENT (No such file or
directory)
getuid()                                = 0
geteuid()                               = 0
getgid()                                = 0
getegid()                               = 0
prctl(PR_GET_DUMPABLE)                  = 1
stat("/run", {st_mode=S_IFDIR|0755, st_size=720, ...}) = 0
lstat("/run/mount/utab", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
open("/run/mount/utab", O_RDWR|O_CREAT|O_CLOEXEC, 0644) = 3
close(3)                                = 0
mount("/dev/mapper/vgdata-graylog_data", "/graylog_data", "xfs",
MS_MGC_VAL, NULL


[here is where the 10 minutes happen]


) = 0
--- SIGWINCH {si_signo=SIGWINCH, si_code=SI_KERNEL} ---
close(1)                                = 0
close(2)                                = 0
exit_group(0)                           = ?
+++ exited with 0 +++

[Now the mount is ok]


can anyone help me or know a kind of these problem. What else to try out?

BR
Sascha