Disk speed slowing to a crawl

[vuke15]

Hello,
After 3 years of working with my NAS I recently had disk failure (bad block found). I replaced it with same model (WD Red 2GB - just a single drive, no RAID or anything) but now I'm experiencing significantly slower speeds after the disk is on for some time. I have to restart the NAS to get the speed back. It is especially pronounced when I'm working with a lot of smaller files.
I've never experienced this with my old disk - does somebody know what could be the problem?
Thanks in advance
Vuk

[father.mande]

Hi,

Hello,
After 3 years of working with my NAS I recently had disk failure (bad block found). I replaced it with same model (WD Red 2GB - just a single drive, no RAID or anything) but now I'm experiencing significantly slower speeds after the disk is on for some time. I have to restart the NAS to get the speed back. It is especially pronounced when I'm working with a lot of smaller files.
I've never experienced this with my old disk - does somebody know what could be the problem?
Thanks in advance
Vuk

First join Asustor support ... et get some advice

For the forum, please provide more information
... A.D.M. version, the model and the memory if you change / increase it
... did you change the file system (ex. from ext4 (default 3 years ago) to btrfs now default)
... how did you do the copy of the data or did you used a clone tools or restart from fresh install
... post interesting information, like result of command like "df -h" "top" screen capture ... any information about the disk & system activity

Philippe.

[vuke15]

Hi Phillipe, thanks for answering
I'm running ADM 3.4.5RBJ3, still default 512MB memory
I did not change file system, I used wizard for creating a partition like 3 years ago, I don't remember it gave me a choice of which format to use (now I checked it's ext4)
I copied files from defective disk by connecting external disk to NAS and manually copying. And vice versa on the new disk.
Hopefully I'm attaching image with result of df -h and top
Thanks again for your help, it's getting to be impossible to work with it.
Vuk

Code: Select all

root@AS1002T-2222:/volume1/.@root # df -h
Filesystem      Size  Used Avail Use% Mounted on
tmpfs           250M   12K  250M   1% /tmp
/dev/md0        2.0G  407M  1.5G  22% /volume0
/dev/loop0      951K  9.0K  922K   1% /share
/dev/md1        1.8T  621G  1.2T  34% /volume1
root@AS1002T-2222:/volume1/.@root # top
Mem: 493380K used, 16636K free, 0K shrd, 3144K buff, 153668K cached
CPU:  0.0% usr  0.0% sys  0.0% nic  100% idle  0.0% io  0.0% irq  0.0% sirq
Load average: 1.10 1.18 1.21 2/172 28305
  PID  PPID USER     STAT   VSZ %VSZ CPU %CPU COMMAND
30960  4840 root     S N  1058m211.7   0  0.0 watch_storage
28305 28253 root     R     3860  0.7   1  0.0 top
28280  3614 root     S     6400  1.2   0  0.0 events.cgi
28253 28116 root     S     3864  0.7   1  0.0 sh
28116 27994 root     S    13924  2.7   0  0.0 sshd
27994     1 root     S     5684  1.1   0  0.0 sshd
27878     2 root     SW       0  0.0   1  0.0 kworker/u4:2
26251  4175 root     S     102m 20.5   0  0.0 smbd
26155  4175 root     S     102m 20.5   1  0.0 smbd
25890     2 root     SW       0  0.0   0  0.0 kworker/u4:0
24309     2 root     SW       0  0.0   1  0.0 kworker/1:1
24210     2 root     SW       0  0.0   0  0.0 kworker/0:1
21751     2 root     SW       0  0.0   1  0.0 kworker/1:2
21612  4175 root     S    53548 10.4   0  0.0 smbd
12845  4175 admin    S     118m 23.7   0  0.0 smbd
 6961     2 root     SW       0  0.0   0  0.0 kworker/0:0
 6944  4175 root     S     234m 46.9   0  0.0 smbd
 5317  4175 root     S     112m 22.5   1  0.0 smbd
 5001     1 root     S     3860  0.7   0  0.0 init
 4972     1 root     S    41420  8.0   0  0.0 rsyslogd
 4840     1 root     S N  37624  7.3   0  0.0 watch_storage
 4714  4175 root     S     155m 31.2   1  0.0 smbd
 4665  4197 root     S    30248  5.9   1  0.0 winbindd
 4648     1 root     S N  11840  2.3   0  0.0 thumbnail
 4635     1 root     S    12588  2.4   0  0.0 cifsdrvd
 4626     1 root     S     4288  0.8   1  0.0 myhttpd
 4623     1 root     S     4140  0.8   1  0.0 myhttpd

[orion]

I think you should try to install this package: viewtopic.php?f=240&t=10717

[vuke15]

Thanks! I'll try it and report back.

[vuke15]

Didn't help unfortunately. Something else must be amiss

[orion]

Oops, I thought it's caused by "watch_storage". You'd better to send a support ticket to asustor directly. https://support.asustor.com/